55 Ordinary Items with Extraordinary Secrets

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Get ready to be amazed by our latest video, "55 Ordinary Items with Extraordinary Secrets." You'll discover the hidden stories and surprising facts behind everyday things you never thought twice about. From the secret history of your favorite snacks to the unexpected uses of household items, this video is packed with fun and fascinating insights. Trust me, you won't want to miss it! Click to watch and uncover the extraordinary secrets hidden in plain sight.  Animation is created by Bright Side. ---------------------------------------------------------------------------------------- Music from TheSoul Sound: https://thesoul-sound.com/   Check our Bright Side podcast on Spotify and leave a positive review! https://open.spotify.com/show/0hUkPxD34jRLrMrJux4VxV   Subscribe to Bright Side: https://goo.gl/rQTJZz ---------------------------------------------------------------------------------------- Our Social Media: Facebook: https://www.facebook.com/brightside Instagram: https://www.instagram.com/brightside.official TikTok: https://www.tiktok.com/@brightside.official?lang=en   Stock materials (photos, footages and other): https://www.depositphotos.com https://www.shutterstock.com https://www.eastnews.ru ----------------------------------------------------------------------------------------  For more videos and articles visit: http://www.brightside.me  ---------------------------------------------------------------------------------------- This video is made for entertainment purposes. We do not make any warranties about the completeness, safety and reliability. Any action you take upon the information in this video is strictly at your own risk, and we will not be liable for any damages or losses. It is the viewer's responsibility to use judgement, care and precaution if you plan to replicate.

Transcript

00:00:00What's hiding inside Coca-Cola cans and regular household batteries?

00:00:06Why do magnets affect breakfast cereals?

00:00:09Do crosswalk buttons actually work, or are they just useless decorations?

00:00:14What does that USB symbol really mean?

00:00:17I'm not sure I know the answers to these and similar questions, but I'm eager to

00:00:22learn the truth together with you.

00:00:24Let's find it out!

00:00:27Coca-Cola cans have a secret few people know about.

00:00:31Here's a Coke can.

00:00:32Let's submerge it in a highly corrosive alkaline solution.

00:00:36The aluminum dissolves due to a process known as hydrolysis, and we can see a plastic liner

00:00:41inside the can.

00:00:43It's made from a polymer or epoxy resin, and serves as some kind of a protective barrier

00:00:48between the aluminum walls of the can and the rather acidic soda.

00:00:54Despite a popular myth, household batteries don't actually contain liquid, and if you

00:00:58accidentally cut them open, no toxic liquid will spill.

00:01:03Most of them are dry cell batteries which are made of electrochemical cells.

00:01:07Those convert chemical energy into electrical energy.

00:01:11Larger batteries often house numerous small cells within them too.

00:01:15Even Tesla vehicle batteries consist of multiple small cells.

00:01:19When combined, they easily provide the necessary voltage.

00:01:25Most toothbrushes have differently colored bristles, but they aren't just pleasing to

00:01:28the eye.

00:01:29Those bristles, often blue, have a functional purpose.

00:01:33They're called toothbrush indicators, and their colors fade as you use the brush.

00:01:37The American Dental Association recommends changing your toothbrush at least four times

00:01:42a year, and by getting paler, these bristles help you figure out when it's time to replace

00:01:47your toothbrush.

00:01:49You'll probably agree that there's no better snack than a pack of chips.

00:01:53Some are flat, others have ridges.

00:01:56Is it just aesthetics?

00:01:58Not really.

00:01:59The main purpose of those lines on some kinds of chips is to help with the distribution

00:02:03of spices and seasonings.

00:02:05In other words, all those substances that make your chips taste like cheese are mostly

00:02:09stored inside the lines.

00:02:11Plus, the lines make chips crunchier.

00:02:15Now this one might be a surprise, but some breakfast cereals are magnetic.

00:02:20That's because they're often fortified with iron in the form of a fine powder.

00:02:25Due to the added iron, cereal flakes get attracted to magnets.

00:02:29All this may sound kinda alarming, but in reality, the iron content in the flakes is

00:02:33minimal and doesn't pose any threat to your health.

00:02:37That clear fluid in gel pens is called the ink follower or stopper fluid.

00:02:42The gel in such pens contains pigment particles dissolved in a polymer solution.

00:02:47The main task of the stopper fluid is to be a barrier to prevent the gel from evaporating

00:02:51or leaking out.

00:02:53Without this transparent fluid, your gel pen wouldn't function.

00:02:58The fluid always stays in one position and doesn't get dissolved with the gel.

00:03:02Neither does it move backwards or flow out of the pen.

00:03:08Many pedestrian crosswalk buttons, namely in New York, are placebo buttons.

00:03:13They do literally nothing when you press them.

00:03:15Originally, they were functional after being introduced in 1964, but today, most of them

00:03:20don't affect traffic lights, which are programmed based on the real needs of the traffic flow.

00:03:26Why do such buttons even exist then?

00:03:29It's a simple psychological trick, providing you with an illusion of control.

00:03:35You might have noticed that movie theater seats are almost always red.

00:03:39This choice isn't random.

00:03:41It has strategic importance, which is rooted in visual science.

00:03:45The thing is, red light has a longer wavelength.

00:03:48It means that it's the first color to disappear in low light.

00:03:51It allows the audience to concentrate better on the screen once the movie begins.

00:03:55Such a design choice enhances the viewing experience by minimizing distractions.

00:04:02Speed bumps are crucial for pedestrian safety, but at the same time, they can seriously increase

00:04:07car emissions due to the non-stop acceleration and deceleration they cause.

00:04:13To address this issue, some cities, like London, are testing fake speed bumps.

00:04:18Those are optical illusions painted on the road.

00:04:21They look raised from a driver's perspective, but in reality, they're flat.

00:04:26Authorities hope that this approach will slow down drivers without having a negative impact

00:04:30on the environment.

00:04:34Soda bottles are always filled in such a way that there's some space between the liquid

00:04:38and the cap.

00:04:39That's because soda contains carbon dioxide.

00:04:42It's a gas that can expand once the bottle's heated.

00:04:45If there's no gap in the bottle, it can break because of the pressure building inside.

00:04:50Also, when you open your drink, the gases go out in the form of bubbles, making the

00:04:54drink overflow.

00:04:56The gap helps with this problem too.

00:05:00The USB symbol, looking like a trident, has always sparked multiple speculations about

00:05:06its origin.

00:05:08One popular idea is that it represents Neptune's trident and symbolizes power and adaptability.

00:05:14But there's also a little bit less exciting theory.

00:05:17A man who claimed to have designed the symbol in the 1980s stated that it was supposed to

00:05:22represent connectivity.

00:05:24The large circle symbolizes a computer, while the attached shapes, the circle, the triangle,

00:05:29and square, stand for different outputs.

00:05:34The design of a tennis racket has a specific feature known as the throat.

00:05:39It's an open space below the head of the racket.

00:05:42This space isn't just for storing balls, it also improves the racket's aerodynamics by

00:05:46letting air pass through.

00:05:48It seriously reduces drag during swings.

00:05:53Speaking of tennis, tennis courts are usually built with a north-south orientation.

00:05:58It helps minimize the impact of the sun's position during the game, ensuring that neither

00:06:02player has the sun directly in their eyes.

00:06:07Look closely at a tram's overhead lines, and you'll see that its contact wires zigzag back

00:06:12and forth instead of going in a straight line.

00:06:15That's because all trams have pantographs attached to their roofs.

00:06:20The upper part of the pantograph is gradually worn down by the overhead wire and eventually

00:06:24needs to be replaced.

00:06:27To wear it down evenly, the wire is not installed strictly along the tram's path, but in zigzag

00:06:33patterns.

00:06:34As the tram moves, the pantograph slides along the wire, and it wears down evenly.

00:06:41Those cone-shaped water cooler cups?

00:06:44Their shape is intentionally designed to prevent users from setting the cups down.

00:06:49This allows employees to minimize the risk of spilling water on their desks around various

00:06:53electronic devices.

00:06:55Plus, less material is used to produce cone-shaped cups, which makes the process less wasteful

00:07:01and more cost-effective.

00:07:03It also kinda supports sustainability by encouraging people to drink their water quickly and dispose

00:07:08of their cups immediately after.

00:07:12Most suitcases have two zipper pulls, and it serves several purposes.

00:07:18First of all, if one zipper fails, the other can keep the suitcase closed.

00:07:23Even better, having two zippers allows you to have easier access to small sections of

00:07:27your suitcase without having to open it entirely.

00:07:32And finally, when you have two zippers, you can connect them with a padlock for increased

00:07:36security.

00:07:39Some plastic milk containers have dents on their sides.

00:07:43These dents serve several purposes.

00:07:45When milk spoils, it usually causes swelling and high-pressure buildup inside the container.

00:07:51That's when the dent pops out and doesn't let the jug blow up.

00:07:54Plus, if you decide to freeze the milk, it will expand like any other fluid.

00:08:00And then again, the indentation will pop out and prevent the container from breaking inside

00:08:04your freezer.

00:08:08If you ever had a problem figuring out why fake pockets exist, you need to hear this.

00:08:14The main reason is that if a clothing item has a specific cut or shape, pockets may spoil

00:08:19it.

00:08:20They can alter the item's shape either in the warehouse or already on the retail rack.

00:08:25The solution?

00:08:26Getting rid of the pockets in key areas.

00:08:29Plus, fake pockets are obviously cheaper, and they don't get stretched out.

00:08:35The thermos wasn't actually invented to keep your coffee warm.

00:08:39It was made by a Scottish scientist who wanted a safe place to keep his chemicals at a

00:08:44stable temperature.

00:08:46So he took two bottles, put the smaller one inside the bigger bottle, and vacuumed out

00:08:50the air between them.

00:08:55Go check your box of aluminum foil.

00:08:57Does it have push-in tabs on the sides?

00:09:00They're there to keep the roll in place as you pull some foil out.

00:09:03Now flip a stapler upside down.

00:09:06See the metal plate on the bottom?

00:09:08You can turn it to get temporary staples, ones whose pins are bent outward and are easier

00:09:12to take out.

00:09:14Speaking of flipping stuff, do it with a salt jar.

00:09:17Nah, you should've closed the lid first.

00:09:19Now you've got salt all over the place.

00:09:21Ok, now you've done it.

00:09:23Look at the bottom of the jar.

00:09:25See the ribs on it?

00:09:26If you take another jar, say with pepper in it, and rub the bottoms of the two jars against

00:09:31each other, the salt will pour out evenly without you having to shake it vigorously.

00:09:36Same works with pepper too.

00:09:38It wasn't their original purpose, but you can use soda can tabs to hang hangers on other

00:09:44hangers.

00:09:45By the way, the hole in the tab is there to put straws through and keep them in place.

00:09:50Post-it notes are supposed to be peeled off from the side, like you're turning the page

00:09:54in a book.

00:09:55Most of us tear them from the bottom, and that just creates a crease and makes the whole

00:09:59note less sticky.

00:10:01The hole in your spaghetti spoon helps you measure the perfect portion.

00:10:05It's just enough for one person.

00:10:07Multiply that by however many people you're serving.

00:10:11Or maybe you just like to pig out on pasta.

00:10:13Hey, I'm not judgmental!

00:10:16Does the audio jack in your headphones have one, two, or three stripes?

00:10:20One band means your headphones just play sound, two means stereo sound, and three mean the

00:10:26headphones also have a microphone.

00:10:29To prevent water from boiling over, just lay a wooden spoon across the rim of the pot.

00:10:35It only works for a little while, though.

00:10:37If the spoon's surface gets heated up to boiling point, the bubbles will just foam

00:10:41up and around it.

00:10:42That's why metal spoons won't do – they heat up too quickly.

00:10:46Silica gel packets can absorb up to 50% of the humidity in a confined space, so use them

00:10:52around the house.

00:10:53Tape one to the lid of a container of dry goods, be it dog treats, breadcrumbs, cookies,

00:10:58you name it.

00:10:59Throw one in each of your dresser drawers.

00:11:02Just make sure they don't get accidentally eaten.

00:11:05Most people use bobby pins upside down.

00:11:07The zig-zag part goes closer to your scalp.

00:11:10The texture keeps the hair and pin in place much better.

00:11:14Bubble wrap was originally created as wallpaper that would be easy to clean.

00:11:19But the decor idea didn't take off, so they found a new use for it.

00:11:24Now they help cushion items during shipping.

00:11:26And they pop so nicely, of course.

00:11:28Hey, just ask my dog!

00:11:30All crackers and some cookies have holes to make sure the final product has the right

00:11:35texture.

00:11:36These teeny tiny holes allow steam to escape, so your crackers and cookies wouldn't snap.

00:11:41If it weren't for these holes, also known as dockers, steam would build up inside the

00:11:46treat, and the final result might have been scrumptious, but it would've been rather

00:11:51oddly shaped.

00:11:53The scalloped edges on Ritz crackers are there so you can roll the cracker over your cheese

00:11:57so that you get the perfect-sized piece to sit on top.

00:12:01It works for soft-ish cheese only.

00:12:03Don't try to cut some parmesan like this.

00:12:06Cheesily speaking, you probably grate your cheese with a cutting board or a plate underneath

00:12:11the box grater.

00:12:13Try a more convenient method.

00:12:15Flip the box grater and lie it on the side.

00:12:18This way, you get the finest shreds of cheese, and it's mess-free.

00:12:22PVA glue doesn't stick inside the bottle because it contains long molecules, such as

00:12:28polymers and water.

00:12:29Once you squeeze the glue out, the water trapped inside evaporates, leaving only sticky polymers.

00:12:36Super glue doesn't stick inside the bottle because of a special chemical that hardens

00:12:40when it hits water vapor.

00:12:42So the glue doesn't stick because the container keeps water out.

00:12:47The bread goes stale just because it loses moisture.

00:12:50When you add water to the flour, it changes texture, and the starch molecules get pretty

00:12:54disorganized.

00:12:55Hey, I can relate.

00:12:56That's why bread is soft and fluffy when it's freshly made.

00:13:00But the more it cools down, the more water it loses.

00:13:04Starch molecules get their original crystallized state back.

00:13:07Also, recrystallization happens way faster in the fridge.

00:13:12The sole of your sneakers, and even the tires of your car, are just one huge molecule.

00:13:17It's because when rubber is vulcanized, all the molecules become connected through

00:13:22the sulfur.

00:13:23So they turn into one, but a really large molecule.

00:13:27Your jeans are blue on the outside and white on the inside because of a smart way to weave

00:13:32the fabric.

00:13:33The warp thread is dyed, while the weft thread has no color, it's just white.

00:13:38This way, manufacturers reduce the amount of dye needed for each piece of clothing.

00:13:43By the way, most jeans are blue because they were originally dyed with indigo dye with

00:13:48a rich blue tint.

00:13:50This dye was picked for the way it interacted with cotton.

00:13:53When the cotton is heated, most dyes just penetrate it.

00:13:56But indigo dye stays attached to the surface.

00:13:59As a result, each time people wash their jeans, the dye molecules escape the fabric, leaving

00:14:05a unique pattern on each garment.

00:14:07Today, manufacturers use synthetic indigo dye.

00:14:11Bananas have thick skin to keep insects away.

00:14:14However, it gets thinner as the fruit ripens.

00:14:18Once the banana is ripe, it starts getting water from its skin.

00:14:21Birds and animals can also tear the thin skin easily.

00:14:24Hey, smart move, Mother Nature!

00:14:27The public toilets tend to be U-shaped for hygienic reasons.

00:14:31This way, anyone who wants to use it is less likely to get in contact with ceramic, normally

00:14:36swarming with germs.

00:14:39The bottled water has an expiration date.

00:14:41However, the water itself doesn't go bad.

00:14:44The problem is about the bottle.

00:14:46The plastic starts releasing chemicals over time, so the water gets contaminated.

00:14:51You can't drink it anymore.

00:14:53Glass bottled water has an almost indefinite shelf life.

00:14:56Still, some criteria, as changes in room temperature, may lead to a slow increase of bacteria in

00:15:03water, so it might go bad too.

00:15:05If all else fails, try drinking it from the faucet.

00:15:08Who would've thought?

00:15:10Fresh water!

00:15:12In-flight food is way saltier and spicier than back on land.

00:15:16Airlines have to give an extra kick to all the dishes due to in-cabin conditions.

00:15:21The combination of dry air and changed pressure changes how we perceive taste.

00:15:26Also, the taste isn't only about taste buds.

00:15:29It's about 80% smell, but as odor receptors don't work the way they should because of

00:15:34dry cabin air, well, without some extra seasoning, the food would've been almost completely

00:15:40tasteless.

00:15:41And yes, I've been known to be completely tasteless myself.

00:15:45Veins appear blue because they're under our skin, and skin scatters more blue light

00:15:49than red.

00:15:50Also, the skin around the veins looks even redder than the veins, enhancing the contrast,

00:15:56and the veins appear even bluer.

00:15:58However, it's just an illusion.

00:16:00Our blood is always red.

00:16:02Trust me.

00:16:04Supermarket tomatoes look tremendous but taste bland because, for the past 70 years, farmers

00:16:10have opted for fruits that ripen more evenly and look better and more pleasing to customers.

00:16:16Wild tomatoes are dark green and don't ripen evenly.

00:16:19Still, the tomatoes the farmers grow have a teeny tiny mutation in one gene.

00:16:25That's why they're evenly colored but can't produce chloroplasts properly.

00:16:29That changes the whole photosynthesis process, leaving the evenly colored tomatoes with less

00:16:34sugar in their tissues.

00:16:36As a result, these tomatoes tend to taste like cardboard.

00:16:40The moral to the story appears to be, go get some ugly tomatoes.

00:16:46The space below a cup of noodles is there to protect the noodles during transport.

00:16:51This technique is called a middle suspension.

00:16:54This way, they're protected better in their styrofoam cup, and it also helps those noodles

00:16:59soften more evenly and quickly.

00:17:02Chewing gum wasn't invented for keeping your breath fresh.

00:17:04It was supposed to be a replacement for rubber.

00:17:07But the rubber experiment failed, giving opportunity to a modern version of chewing gum.

00:17:13Sandwiches have all their filling in between two slices of bread to keep the hands clean.

00:17:18Well, at least it was so when the first sandwich was invented.

00:17:22Some centuries ago, I wasn't around then, the 4th Earl of Sandwich, John Montagu, asked

00:17:28his chef to cook him something yummy he could eat without interrupting his long binge.

00:17:33The chef, I think he was named Pastrami or something, wrapped meat and all the other

00:17:38ingredients in the bread to make the dish greaseproof.

00:17:41And finally, all the ingredients in margarita pizza stand for one of the colors in the Italian

00:17:47flag.

00:17:48Basil represents the green stripe, mozzarella represents the white one, and tomatoes represent

00:17:55the red stripe.

00:17:56And if you want it tastier, use ugly tomatoes.

00:18:03Pouring milk into your tea or coffee can make a mess if you don't do it the right way.

00:18:11If you want to pour it with the opening closer to the cup, stop right there, turn it to the

00:18:15other side, and then pour.

00:18:18The flow will be much smoother this way, and you won't have to deal with wiping the table

00:18:22afterwards.

00:18:23Hey, I'm bossy, get over it.

00:18:25It's all about the physics of it.

00:18:27If you turn the carton's opening toward the cup, and the carton is full, while the

00:18:31milk's escaping through the opening, the air from the outside will try to get inside

00:18:36the carton to fill the empty space.

00:18:39Since there's only one place where it can do that, the air will push the milk back and

00:18:44disrupt the flow.

00:18:45When you turn the carton to the other side, there will be empty space along with the top

00:18:50side of the carton, and the air will have it easier getting inside.

00:18:54So the flow will be steady, and you won't have that annoying spurting anymore.

00:18:59The handrails are usually moving faster than the escalator itself, because the gear wheels

00:19:04that drive the handrails are intentionally made a bit larger than required.

00:19:09The rubber on those wheels tends to wear off with time, so if the handrails are moving

00:19:14at the same speed as the steps, or even slower, then you're riding a rather old escalator.

00:19:21Speaking of escalators, and I was, at subway stations with 3 or more of them, the majority

00:19:26will be going in a different direction depending on the time of day.

00:19:30For example, in the city center, there will be 2 or more escalators going up in the morning

00:19:35and down in the evening, and vice versa at the outskirts.

00:19:39This is done to make it easier for passengers to get around.

00:19:43Most people only work downtown while living far from the center, so they go to work in

00:19:47the morning and find more escalators moving in the direction they need.

00:19:52How convenient!

00:19:54If you were ever worried about how the pilots find their way in the dark when landing at

00:19:59night, well, you can rest easy now.

00:20:01There's an incredibly complex illumination system on the ground that helps the crew navigate

00:20:07the airplane, and it's not just the red and white lights along the runway.

00:20:11The lights actually start popping up long before the runway, so that the pilots can

00:20:16easily find their way, and different patterns mean different things, which your captain

00:20:20and their co-pilot know by heart.

00:20:23Every commercial airplane you've been on has only one wing.

00:20:26The first airplanes were called biplanes because they had two wings, one on the top and the

00:20:31other going through the bottom of the fuselage.

00:20:34They were connected with struts and wires, which made kind of a box that basically allowed

00:20:39the craft not to fall apart in the air.

00:20:42How thoughtful!

00:20:43Speed was necessary at lower speeds than earlier planes could only muster, but as the

00:20:48engines increased in power, the second wing became redundant and repetitive.

00:20:54The single wing still serves as a support for the whole structure, though.

00:20:59Going 100 mph on an interstate makes you feel the drive and excitement of speed.

00:21:05Flying at nearly 600 mph makes you drowsy at best.

00:21:09This is because you don't feel the actual speed of anything.

00:21:13You can only see how fast you're moving relative to other objects.

00:21:16The closer, the faster.

00:21:18In a car, everything's close to you, so you see trees, people, houses, witches, porcupines,

00:21:24and other cars zapping past you.

00:21:27On board a plane, everything's so far away that it seems to go at a snail's pace.

00:21:33Take a good look at your smartphone.

00:21:35It might never have occurred to you, but its rectangular shape is no accident.

00:21:40And it's actually what you want it to be.

00:21:43Rectangle is the most convenient shape for a screen.

00:21:46It has an orientation, so you can flip your phone all you want, and it will adapt.

00:21:52Imagine that with, say, a round-shaped display.

00:21:54You'd have to always turn it in your hands until the top is where it belongs.

00:22:00Next, it fits into your pocket nice and cozy.

00:22:03The pocket is deeper than it is wide, so a phone longer than it is broad will sit there

00:22:09perfectly.

00:22:10A square or circular phone will be more of an inconvenience.

00:22:14Then again, a rectangle is much easier to handle.

00:22:17It fits in your palm, and it feels better than a circle or a square.

00:22:22And finally, we're used to having rectangular things all around us.

00:22:26Pictures, sheets of paper, books, Spongebob, photographs.

00:22:31Having round-shaped screens would've been just weird.

00:22:34Still, there have been attempts to create circular and square smartphones, but as you

00:22:39can guess, they didn't catch on.

00:22:43Taking photos in the dark with a flash, you must've noticed your smartphone flashes several

00:22:47times before making the actual shot.

00:22:51Remember those horrid red eyes in old photographs made on film or digital cameras?

00:22:56That happened exactly because the camera flashed only once.

00:23:00In the dark, the pupils of your eyes become larger, trying to catch more light to see

00:23:05better.

00:23:06But when they reflect the camera's flash, the red-eye effect appears.

00:23:11With smartphones, the first short flash makes the pupils contract from bright light, and

00:23:16only then the device takes a shot, and you don't resemble a horror movie creature anymore.

00:23:23There are two main reasons why there are no public bathrooms in the subway – safety

00:23:28and financing.

00:23:29They're ridiculously expensive to maintain, so I guess we won't be seeing many of such

00:23:34cabins where they weren't before.

00:23:37And the second reason is security concern, since there can be no cameras installed in

00:23:42the bathroom, and any kind of suspicious activity would go unnoticed.

00:23:47It seems only natural that a vehicle that carries so much more people than a car should

00:23:52have seatbelts, but buses have none, even school ones.

00:23:56In fact, it has to do with several things at once.

00:24:00First of all, in case of emergency, passengers need to get off a bus as fast as possible.

00:24:06With seatbelts on, they'll waste precious time on unbuckling them.

00:24:10Secondly, a bus is a big and heavy vehicle.

00:24:13On the road, there are not many other members of the traffic that weigh more than a public

00:24:18bus.

00:24:19So, in case of a collision, a bus would stop much slower than a car.

00:24:23And even though its passengers will certainly feel the impact, they normally won't get

00:24:27hurt as much.

00:24:29That's also the reason why passengers are allowed to ride standing too.

00:24:34If your hotel has card keys with magnetic strips, make sure you put your card key apart

00:24:40from your cell phone and wallet.

00:24:42The problem is that card keys are rewritten quite a lot, and they're designed for that

00:24:46process to be quick and easy.

00:24:48So, a fairly strong magnet like the one in your cell phone can erase your key card, and

00:24:54you won't be able to get back inside your room.

00:24:57The hotel will surely provide you with a new card, but that's still inconvenient.

00:25:02If you're struggling to get your taco shells to stay in place, use a muffin tray.

00:25:08Flip the tray upside down, spray it with oil, and place your tortillas in the gap.

00:25:13Cook them for around 10 minutes at 700°F for the perfect crispy taco shell.

00:25:18Now I'm getting hungry, you?

00:25:21Looking for a lost earring or pin on the floor?

00:25:24Place a stocking over the end of your vacuum and move it over the floor.

00:25:29The small object will get picked up without getting vacuumed.

00:25:33It helps to turn the vacuum on while attempting this.

00:25:36Candle wax that's been spilled on furniture can be removed with ice cubes.

00:25:41Rather than ruining the finish by trying to scrape it off, fill a plastic bag with ice

00:25:46and let it sit on the wax for a few minutes.

00:25:49The wax will then cool and harden, making it much easier to pick off.

00:25:54Crayon marks on the walls are a parent's worst nightmare, but you can use a hairdryer

00:25:59to get them off.

00:26:01Heat the marks for just a few seconds to soften the wax, and then you should be able to just

00:26:06wipe it away.

00:26:08You can use hair conditioner to make that new wool sweater less itchy.

00:26:12Just soak it in lukewarm water with a couple of tablespoons of conditioner and leave it

00:26:16for 15 minutes.

00:26:18Then just dry it, and your sweater will be much softer.

00:26:22That layer of bubbles that forms when you add bubble bath to your tub isn't just for

00:26:26fun.

00:26:27The bubbly layer also acts as insulation and keeps your bath warmer for longer.

00:26:34Next time you're getting ready for work, take a closer look at your go-to shirt.

00:26:39Every buttonhole is stitched vertically.

00:26:41But check out the very last hole – it's stitched horizontally, right?

00:26:45This is because the bottom part of your shirt endures the most stress from pulling as it's

00:26:51where your hips are.

00:26:52So that horizontal buttonhole isn't a mistake – it's put there to stop your shirt ripping

00:26:57as your hips move.

00:26:59Hey, those hips don't lie!

00:27:02That random diamond on your backpack is called a lash tab or a pig snout.

00:27:07It's there so you can thread cords through the holes to carry extra gear – perfect

00:27:12for camping or long hikes.

00:27:14If you put your Chinese takeout on a plate when it arrives, you're doing more work

00:27:19than you should.

00:27:20Just like the paper condiment pots in fast-food restaurants, your cardboard Chinese takeout

00:27:25box can be unfolded to create the perfect-sized plate for your food.

00:27:31That hole in your hollow lollipop stick isn't to prevent choking should it ever be swallowed.

00:27:36It's actually there to keep the candy in place.

00:27:39Excess candy flows into the hollow tube and the hole, which, when it hardens, keeps the

00:27:44pop in place.

00:27:45If it was a smooth stick, the candy would slide off easily.

00:27:49Some skyscrapers have hollow floors that contain nothing but an elevator and some complex

00:27:55machinery.

00:27:56They're called technical floors, and developers say they're there to maintain the building's

00:28:00proper functioning.

00:28:02But it's also a way to get around height limits.

00:28:05Some skyscrapers are given a limit to the number of floors they can have.

00:28:09Because the technical floors are non-residential, they add to the height of the building and

00:28:14make it look more impressive without increasing the number of floors and breaking the building

00:28:19contract.

00:28:20These floors can also help to prevent the spread of fires.

00:28:24If you look closely at an elevator door, you'll notice a tiny hole.

00:28:29This is actually a keyhole used for emergencies or for routine maintenance checks.

00:28:33If you get stuck in an elevator, the technician will be able to get you out of there by using

00:28:38their master key.

00:28:41Salt isn't just used for cooking.

00:28:43It can get rid of tough smells, like this.

00:28:47Rubbing salt on your fingertips after chopping garlic should remove the smell.

00:28:51It also works on shoes.

00:28:53Toasters have a secret slide in the bottom that can be removed so you can clean out all

00:28:58those annoying breadcrumbs.

00:29:01Now take a look at your laptop keyboard.

00:29:03There are bumps on the F and J keys, but nowhere else.

00:29:07When your fingers are in the optimal typing position, your index finger should rest on

00:29:11these two keys.

00:29:13The bumps have been added so that you can correctly position your hands for typing without

00:29:17looking at your keyboard.

00:29:20Washing your clothes on a low heat or even better, a cold wash, will make them last twice

00:29:25as long.

00:29:26Drying them on a line, if possible, will also make the material last longer than if you

00:29:31used a dryer.

00:29:32The less you wash them, the less they'll fade and shrink over time.

00:29:36It'll also save you on your energy bills.

00:29:39Blank pages in the books aren't actually made for the author's signature.

00:29:43It's all about the manufacturing process.

00:29:46Books are printed on large sheets, so one sheet can fit 4 printed pages.

00:29:51If a book has an odd quantity of printed pages, chances are you'll get a blank one for notes.

00:29:57Tree cart loops have more functions than you think.

00:30:00You don't want to put your fancy white jacket in a cart next to carrots and Coke.

00:30:05This little hook-like thingy helps organize all the stuff in your cart better, so you

00:30:10can enjoy your shopping trip.

00:30:13Works for me!

00:30:14A good doorknob is one made of brass, bronze, or some copper alloys.

00:30:20These metals have an anti-germ effect.

00:30:23Bacteria spread way slower on them.

00:30:25They also get rid of germs pretty fast, within a couple of hours.

00:30:29There's only one way you can store your peanut butter right.

00:30:33If you place it the regular way, it may get a bit solid before long.

00:30:37The trick is to store it upside down, so the oils don't stay on the bottom all the time

00:30:42and distribute evenly.

00:30:45My dog loves peanut butter.

00:30:47How about yours?

00:30:49Whatever coffee shop you go to, all the disposable cups look exactly the same, only the logo

00:30:55changes.

00:30:56The secret here is the special shape that lets you enjoy your drink easily.

00:31:01The top is always wider, which allows it to accommodate your nose while you're drinking,

00:31:06and the bottom is always narrower, so that anyone can hold it easier even if the hand

00:31:11is quite small.

00:31:12This width difference also allows the cups to staff.

00:31:17Spoiled milk emits gases, like most foods when they go bad.

00:31:21Poor me!

00:31:22A classic plastic milk jug has a concave shape on one side, so when the gases expand inside

00:31:29the jug, it expands too, and the concave shape curves out.

00:31:33Also, if you want to save some milk for later and freeze it, the jug will expand when the

00:31:39milk gets solid as well, occupying more space in a jug.

00:31:44Almost all measuring tapes have a metal tip with a small slot on the end.

00:31:48You can use this slot to hang the tape on a nail or a screw to make measurements without

00:31:53anyone's help.

00:31:55Sometimes this tip has a row of sharp points along the edge on one side.

00:31:59It comes in handy when you want to leave a mark without using a pencil.

00:32:04If you've ever tried a Nintendo cartridge to taste, you'll confirm that they taste

00:32:09revolting, leaving a sour, bitterish aftertaste in your mouth.

00:32:13Well, we tried to tell you!

00:32:15They're covered with denatonium benzoate, one of the most disgusting flavors known.

00:32:20Not normally seen in ice cream stores either.

00:32:23Actually, this taste has a righteous function.

00:32:26It prevents people from swallowing those cartridges.

00:32:30Rough edges on the dives are just about design.

00:32:33The coins used to be made of precious metals to show their real value.

00:32:37People would shave off the edges, spending the shaven coins with the same value, and

00:32:42melt the edges to new coins.

00:32:44To avoid it, minters added that pattern so people could tell if someone cut that coin

00:32:49before.

00:32:51A triple handle on a jerry can is there to make it easier for two people to carry it

00:32:56and distribute the fuel evenly.

00:32:59Lemons get juicier if you warm them up a little bit in the microwave.

00:33:03The heat softens the frozen membranes, so the juice can flow out freely.

00:33:07The result?

00:33:08More lemonade for you!

00:33:11The expiration date on mineral water isn't about water going bad.

00:33:15Actually, no water can spoil, but the bottle can.

00:33:20Over time, it starts leaking some chemicals that aren't quite safe.

00:33:23Ok, here's a science project to try.

00:33:27Tonic water can be fluorescent in UV black light.

00:33:31It contains quinine, which makes it both bitter and glowing.

00:33:36The color of plates and cups can affect your food perception.

00:33:40A group of 57 volunteers drank hot chocolate out of different cups, but most people claimed

00:33:45the orange cup hot chocolate was the best.

00:33:49Red color plates are cool for those on a diet.

00:33:51It looks alarming, so you end up eating less.

00:33:55You open a bag of chips and find it half empty, or half full if you're an optimist.

00:34:00Frustrating, I know, but I figured it's not because the manufacturer wants to get

00:34:04more cash out of you.

00:34:06The extra air helps to protect your chips from any damage.

00:34:09If the bags were filled to the brim, you'd get chip dust instead of chips after their

00:34:13transportation.

00:34:16A raspberry-flavored ice pop is typically blue, not pink, or red, which both would be

00:34:22more obvious color choices.

00:34:24Well, imagine you're making a pack of popsicles.

00:34:28You can pick green for apple flavor, pineapple or lemon is yellow.

00:34:32There's strawberry, so it should be red.

00:34:35Cherry, well, red again.

00:34:37Watermelon?

00:34:38Red.

00:34:39And now raspberry.

00:34:40Yeah, red.

00:34:44Apple reds are definitely way too many, and people won't tell the difference between

00:34:48them easily.

00:34:49So, at first, both strawberry and cherry flavors were red, but of different shades.

00:34:54The watermelon one was pink.

00:34:56They made the raspberry ones of a deep dark red dye.

00:34:59Then, scientists proved that that dye might be dangerous, so it was banned.

00:35:06Blue was another free color option, but there's no blue fruit or berry except for blueberry.

00:35:12But it's not a very popular flavor, so manufacturers started to paint raspberry blue.

00:35:17Sometimes, they call it blue raspberry.

00:35:19But it's just a lab thing that doesn't naturally exist.

00:35:25If you buy a clock or see a picture of it, it'll most likely show 1010 by default.

00:35:30The only reason behind it is that it just looks nice.

00:35:33You can see both hands, and they don't overlap.

00:35:36Also, it's symmetrical and nice, and it frames the 12.

00:35:40And finally, it makes a smiling shape that gives off a positive vibe.

00:35:47Mattresses usually have those decorative stitching patterns on them.

00:35:50Mattress manufacturers make a limited number of different mattresses, and the only way

00:35:54to make them look different is to come up with a fancy stitching pattern.

00:36:01Two mattresses of different companies might be the exact same quality, but cost differently.

00:36:06Most people will never know it and will decide that different patterns mean something in

00:36:10terms of quality.

00:36:12So when shopping, don't mind the pattern at all.

00:36:17Cheese has holes.

00:36:19In most types, they're small, but they can also be huge.

00:36:23Cheese is made by adding bacteria to milk, and the holes are the result of it.

00:36:28Those bacteria consume lactic acid and release little gas bubbles.

00:36:31They're trapped in the cheese, and then they pop, forming those little holes.

00:36:38The size of holes depends on the production temperature and its acidity.

00:36:42Swiss cheese has extra-large holes.

00:36:44It's made at a temperature of around 120 degrees Fahrenheit and incubated at 70 degrees

00:36:50Fahrenheit for 5 to 7 days.

00:36:53So the cheese is very soft, and the bubbles grow especially big.

00:36:59All coins have ridges, but have you ever wondered why?

00:37:02At first, all coins were linked to a silver standard.

00:37:06The amount of silver used in a coin was proportionate to the value of the coin.

00:37:12So a one-dollar coin had way more actual silver in it than, say, a quarter.

00:37:17The edges were made reeded for security reasons.

00:37:20Once, it was a coin element that made a coin harder to reciprocate.

00:37:26It also prevented another kind of fraud.

00:37:29People would shave off a bit of metal from the edges of coins.

00:37:32It would be just a little so that no one would notice the difference.

00:37:36But if you did it to many coins, you'd get enough precious metals to sell.

00:37:42Reeded edges made it impossible.

00:37:44If someone tried to shave them off, the ridge would become smooth, and it'd be obvious to

00:37:48anyone that a coin had been tampered with.

00:37:53Nickels and pennies didn't have them because they were made of inexpensive metals.

00:37:57So there was no sense in protecting them.

00:38:02Now no one makes coins out of silver, but the ridges are still there.

00:38:06When the governments started to produce new coins, they didn't see a point in changing

00:38:10the coin-making equipment.

00:38:12And they just kept the reeded edges.

00:38:16If you ever played billiards, you must know that green table well.

00:38:20The game originated around the 14th century, five centuries before basketball.

00:38:25Back then, folks didn't have pool tables, of course.

00:38:29Instead, they were playing it outside on the green lawn.

00:38:33Later, people moved the game indoors so they could play it even when it was raining.

00:38:38And they kept the nostalgic green to give it some lawn vibes.

00:38:44Medical workers usually wear a uniform that is a shade of blue or green.

00:38:48There's a reason for it.

00:38:50Before the 20th century, they were wearing their regular clothes, even when performing

00:38:54surgery.

00:38:57With the development of medicine, people started to pay more attention to matters of sterileness.

00:39:02So they started to wear a uniform, and at first, it was white to signify purity.

00:39:09The problem was that some stains were very hard to wash off from the white uniform.

00:39:13The color white would become greenish.

00:39:15So it made sense to make the uniform green or blue.

00:39:20Besides, surgeons mostly focus on red colors during work.

00:39:24Blue and green are exactly the opposite side of the spectrum.

00:39:27So if everything else is greenish blue, the red becomes even more distinctive.

00:39:35Wash your hands with plain white soap, and you'll see some white foam.

00:39:39Wash them with a blue, red, yellow, green, whatever color, and the foam is still white.

00:39:44The reason for it is scattered light.

00:39:47Any light rays that falls on an object either get absorbed or are reflected back.

00:39:54Things that absorb all colors appear black.

00:39:57Those that reflect all colors are white.

00:40:00A red bar of soap is red because only the red color reflects back, and the other colors

00:40:05are absorbed.

00:40:08But once you produce some foam, it's made of many little bubbles.

00:40:12Each of them scatters light in different directions, so it looks white.

00:40:18Do you see something when you rub your eyes?

00:40:20These colors and shapes are called phosphenes.

00:40:23The reason why you see them is that when you're rubbing, you increase the pressure in the

00:40:27eyeball and activate the neurons of the retina that process visual information.

00:40:33Once they're activated, your brain interprets it as if you see the light, and it tries to

00:40:37actually see it.

00:40:41Ever wondered why you have black circles around your eyes when you're tired?

00:40:45The skin under the eyes is very thin, so the blood vessels are very close to the surface,

00:40:50and you can see any difference easily.

00:40:54When you lack sleep, your skin gets paler, and the blood vessels are even more visible.

00:40:59So, you can see those dark circles showing through the skin.

00:41:03Also, with age, your skin naturally gets thinner, so that's why older people tend to have

00:41:08dark circles.

00:41:09But if you're young, try to get more sleep, and they'll be gone.

00:41:15You say Germany, the Spanish say Alemania, and the Germans say Deutschland, and it sounds

00:41:20like three different countries, but it's just one.

00:41:24If someone's name is Olivia, she will be more or less of Olivia everywhere, so why do countries

00:41:29have different names in different languages?

00:41:34Countries have existed for a long time.

00:41:36Back when people from different countries couldn't communicate and spoke different languages,

00:41:41they'd refer to some territory the way they referred to it, never agreeing with other

00:41:45countries, and the name stuck.

00:41:49A German tribe called Alemanni once lived in what's now Switzerland.

00:41:54So I guess that's why the Spanish started to call the land Alemania.

00:41:58Then the Germans were united and called themselves Deutschland.

00:42:04In English, the pronoun I is always capitalized.

00:42:07Even the linguists don't know for sure why it's so.

00:42:10At least yet.

00:42:12I comes from the German isch, during the time it evolved from isch to ich and later to I.

00:42:21Some theorized that a little I appeared to be too insignificant in a sentence, standing

00:42:25on its own, so it started to be capitalized to be more distinctive.

00:42:32If you've ever seen a behind-the-scenes video, you might have noticed that they click that

00:42:36clapperboard before each scene.

00:42:39This clap helps a lot at the stage of editing.

00:42:41The film and the audio are recorded separately, and when they're synchronized, the clapperboard

00:42:46makes that brief clap at the very beginning of a shot scene.

00:42:52And it's easier to find where the scene starts to add the audio.

00:42:56Another reason is to give more details on the filmed piece.

00:42:59They add information about the scene and take number.

00:43:02The filming date, the camera angle, and other important stuff to the clapperboard that makes

00:43:06it easier to go through hundreds of video pieces later.

00:43:10You're heading to a supermarket to get a few small items.

00:43:14The self-service checkout is way faster than waiting for people to unload their huge shopping

00:43:19carts.

00:43:20But this loud voice from a machine, commanding over and over again, spoils all the appetite.

00:43:27I have some good news for you.

00:43:29You can turn it off.

00:43:31Take a closer look at the screen.

00:43:33You'll probably see a volume button at the bottom.

00:43:37Use your finger to mute the annoying polite voice once and for all.

00:43:42Not all machines have this hidden option, though.

00:43:45But it's definitely worth checking out.

00:43:47Usually, a sunflower oil bottle has this weird inner cap.

00:43:53Most people remove the entire top layer and throw it away.

00:43:57But there's actually a better way to use it.

00:44:00Turn the removed element inside, down, and put it into the bottleneck.

00:44:05It will make a great dispenser.

00:44:07And you'll never spill more oil than you wanted in your salad.

00:44:12Planning a picnic with your friends in the wild?

00:44:15Forget about the classic picnic basket.

00:44:17We got it all wrong.

00:44:19It's not a basket, but a bucket.

00:44:21Yep, it's way better to put your picnic stuff into several buckets.

00:44:26This will help evenly distribute the weight among all guests.

00:44:30And when you find a nice spot for your picnic and get all the stuff out, turn the buckets

00:44:35over and use them as stools.

00:44:38When the food is over, put the buckets into each other to save space on the way back home.

00:44:44Your toast is getting burnt, but you don't have any kitchen tongs at hand?

00:44:49Take two identical forks.

00:44:51Put them together time to time.

00:44:54Stick them tightly with a rubber band.

00:44:56And voila!

00:44:57Your tongs are ready.

00:44:59Ever wondered what this double bottom under the Nutella lid is for?

00:45:03There's only one way to find out.

00:45:05Here's a brand new Nutella jar.

00:45:08Let's remove the white carton circle and then peel off the foil.

00:45:12Surprise!

00:45:13There should be a little knife to cut the gold foil cover.

00:45:16Now you know how to get access to your favorite guilty pleasure without scratching your hands.

00:45:23Don't throw away the glass jar after you're done with Nutella.

00:45:26It can turn into a candle holder or a lantern.

00:45:30Wash it, paint it to your taste, add some decorations or lettering.

00:45:35Glue a decorative rope around the neck of the jar.

00:45:39Set a candle inside the jar or put string lights inside it.

00:45:43No one will ever guess that it used to be a Nutella jar.

00:45:47It'll be our secret.

00:45:50Have you ever wondered why Ritz crackers have ridges?

00:45:54You can use them as a safe knife for cheese and similar soft products like cucumber, ham

00:46:00and so on.

00:46:02Just roll the cracker as if it were a tiny pizza cutter and press.

00:46:07Now all the ingredients fit on your cracker perfectly.

00:46:10Enjoy your snack.

00:46:12Do you have one of those old baking trays that you never use but still hesitate to throw

00:46:17away?

00:46:18Good news.

00:46:19You can recycle it and make a gorgeous frame for a painting or a picture.

00:46:24There are two ways to do so.

00:46:26De-grease the surface of your tray and attach the image to the bottom.

00:46:31In this case, the frame will stick forward.

00:46:34Or you can flip the tray upside down and the edges will hide behind.

00:46:39Hang this construction on a wall or put it on a shelf.

00:46:43And feel free to use metal paint to give your frame an appropriate color.

00:46:49An old cutting board can make a great frame for a mirror.

00:46:53Use double-sided tape to attach a matching mirror to the surface of your board.

00:46:58Make sure the mirror is firmly glued.

00:47:01And now you can hang it on a wall using the board's handle.

00:47:05Or put it on a cabinet and lean it on a wall.

00:47:08Don't forget to wash and dry the cutting board before beginning this DIY.

00:47:13We don't want the mirror to smell fishy.

00:47:16Another superpower of a cutting board is keeping wires tangle-free.

00:47:21Wrap some string lights around an old wooden cutting board and put it in your closet.

00:47:26The next holiday season, you'll have it completely untangled.

00:47:31A hairdryer can make a great mini-vacuum cleaner when you need an emergency cleaning.

00:47:37Cut a plastic bottle and dry it.

00:47:40Put a layer of fabric on the fan of your hairdryer.

00:47:44Then place the fan in the plastic bottle bottom portion.

00:47:48Fix the bottle and attach it to the hairdryer using a plaster.

00:47:52Turn it on and you're ready to clean the mess.

00:47:55You can use a retro gas stove grate to hang your indoor plants.

00:48:00Attach it to the wall with screws or nails.

00:48:03Now you're ready to hang flower pots, string lights, and any other decor items.

00:48:09If the color of your stove grate doesn't match the interior, you can always fix this

00:48:14using spray paint.

00:48:16Chopsticks and wooden ice cream sticks can also turn into a beautiful panel that will

00:48:21decorate your interior.

00:48:23Glue the edges together to create a grid.

00:48:27You can also put together your name or any other word you want out of sticks.

00:48:32Then wrap the grid around with string lights and enjoy your decor.

00:48:37Don't throw away wrinkled kitchen foil.

00:48:39It can help to sparkle up your day.

00:48:42Crumple identical foil balls and glue them over a glass, a mirror frame, or even a book,

00:48:48and your life will immediately become more glamorous.

00:48:52If you need to sharpen your dull scissors, take aluminum foil and crunch it up into a

00:48:58ball.

00:48:59Sharpen the edges of the scissors right on that ball of foil.

00:49:03To speed up your ironing routine, place sheets of tin foil under your ironing board and then

00:49:09put the cover back on.

00:49:11The tin foil will reflect the heat.

00:49:14The iron will get hotter and will do the job much faster.

00:49:18If you struggle to organize all your jewelry and lose your favorite items from time to

00:49:23time, use a sponge to store it.

00:49:26Just make a few cuts and put your shiny little friends inside these cuts.

00:49:31They will sit firmly in the sponge and won't fall out or mix.

00:49:36You can also use a sponge to create an organizer for your jewelry.

00:49:41Find a cute box, cut your sponge into matching pieces, and put them inside the box.

00:49:47Use glue or tape to attach the sponge to the box and enjoy your new jewelry casket.

00:49:54You can easily make chocolate-filled strawberries at home.

00:49:58Take a plastic syringe, fill it with chocolate paste, remove the leaves from a strawberry,

00:50:04and stick the syringe into the hole from which the sprig usually sticks out.

00:50:09Squeeze chocolate into the berry, and it's ready.

00:50:12You can use the same technique when you bake eclairs, apples, or want to leave a chocolate

00:50:18note on a pancake to surprise your significant other in the morning.

00:50:23Wooden pants hangers with metal clips can be handy when it comes to hanging curtains

00:50:27or a backdrop for your photo shoot.

00:50:30If you need to hang curtains but don't have any special hooks, attach several plants hangers

00:50:35along the entire length of the curtains, and then hang this construction on a ledge.

00:50:42An old metal tea jar serves as a mini shelf for small things in your kitchen.

00:50:47Apply double-sided tape to the jar and stick it to the top corner of your cabinet.

00:50:53Now here's a trick.

00:50:54Instead of putting the box grater vertically on top of a plate, put it horizontally, with

00:50:59no plate underneath, of course.

00:51:01This way, you won't risk scraping your knuckles because only your fingertips will eventually

00:51:05touch the grater when you reach the end of the process.

00:51:08Also, it gives the grater more stability, when otherwise you'd have to balance the

00:51:12grater or even hold it in the air with the other hand.

00:51:16When you're done, or when there's just too much grated stuff on the bottom wall

00:51:19of the grater, simply turn it on its side to pour the contents into the bowl or plate.

00:51:25Flowers in a vase would stay fresher for longer if not for the bacteria that breed in the

00:51:30water.

00:51:31Since copper has some antibacterial properties, dropping a penny into the water will help

00:51:36keep the microbes at bay and let you enjoy your flowers for that little bit longer.

00:51:41An easy way to check if your bed linen has dried completely is to put a small mirror

00:51:46in between the layers for about 5 minutes.

00:51:48If the mirror has steamed up when you pick it up, it means the sheets are still a bit

00:51:53damp.

00:51:54Let them dry until the mirror stops getting cloudy.

00:51:56A damp bed is a lovely breeding ground for fungi and bacteria.

00:52:01Ok, I'm in!

00:52:03If you have a not-very-healthy habit of eating in front of your computer, you'll be surprised

00:52:09at how much crumbs and grime there is inside your keyboard.

00:52:12Now, you can just turn it over and shake it vigorously, of course, but that's not very

00:52:17good for any piece of tech, you know.

00:52:20So instead, take a post-it note and run its sticky part over the keyboard.

00:52:25It will collect the little pieces of trash like magic.

00:52:28Even a better way to do it, though, is to take a slime and stick it to the keyboard,

00:52:33then take it away, squeeze it, and stick again in another part.

00:52:37The slime will fill the entire space between the keys, and its sticky properties will let

00:52:41it gather every little bit of garbage.

00:52:44Separating egg yolks from whites is easier using a plastic bottle.

00:52:49Break the necessary number of eggs into a bowl and then take an empty plastic bottle

00:52:53and squeeze it.

00:52:55Hold the bottle over the yolk and release.

00:52:57It'll pull in air and the yolk together, leaving the white in the bowl.

00:53:01Repeat with the rest of the yolks and you're done!

00:53:04And that's no yolk!

00:53:07If you're tired of spitting out the stones when eating cherries or want to make a cherry

00:53:11pie, push the stones out with a straw.

00:53:14Also, many garlic presses have a special tool on their handle that can be used exactly for

00:53:19that.

00:53:20Cleaning a blender can be a nuisance if you do it manually.

00:53:23Instead, fill it with hot water and add some liquid soap or detergent, then run it for

00:53:28about 10 seconds.

00:53:30Rinse it afterwards, and it's clean!

00:53:33Plaster walls can crumble, flake, and spread dust all over the floor when you hammer nails

00:53:37into it.

00:53:38Cut a strip of masking tape and stick it to the place you want to hammer a nail in.

00:53:43The tape won't let the plaster crack and crumble, leaving the hole neat and clean.

00:53:48Small scratches and dents on wooden furniture can be removed with some toothpaste or a walnut.

00:53:55For toothpaste, rub a pea-sized amount of it into the scratch until it's gone, then

00:53:59wipe the leftovers with a damp cloth.

00:54:02For a walnut, take a half of that brain-shaped nut and rub it into the dent.

00:54:07Then rub the area with your fingers and buff it with a soft cloth.

00:54:11This'll help the wood absorb the oil from the nut, making the scratch sealed and gone.

00:54:17The sticky residue on jars left after you removed the stickers won't be easily removed

00:54:21by water and detergent.

00:54:23So take some vegetable oil instead.

00:54:26Soak a cotton pad in it and wipe the sticky surface.

00:54:29Let it sit for a while and then wash the oil away together with the residue.

00:54:34If you can't comfortably reach the wick of a candle with a lighter, take a stick of

00:54:39spaghetti.

00:54:40Light up its end, and you'll get a burning stick that's easy to use for hard-to-reach

00:54:45places.

00:54:46Now, next time your razor blade's getting dull, try rubbing it backwards on a pair of

00:54:51jeans for regular upkeep.

00:54:53Not while you're wearing them, of course.

00:54:55Make sure you keep the blades dry, too, or even kept in mineral oil.

00:54:58That'll stop them from rusting.

00:55:01Keep all those jelly, ketchup, peanut butter, and mayo fresher for longer in your fridge

00:55:06by turning the contents upside down.

00:55:09This creates a partial vacuum inside the container, helping prevent mold growth.

00:55:14Storing ice cream upside down will prevent freezer burn, too.

00:55:18To bring your permanent marker back to life, simply put a few drops of rubbing alcohol

00:55:23into the felt material inside and shake.

00:55:26Once the felt absorbs the rubbing alcohol for a couple of minutes, the marker will be

00:55:30almost as good as new.

00:55:32Now, don't keep throwing away lettuce that goes black too quickly.

00:55:36Covering it with a dry paper towel and then placing it in an airtight container will help

00:55:41it keep fresher for much longer.

00:55:43This goes for any leafy greens you've got leftovers of.

00:55:47That sharpish bit sticking out of the cap of your favorite cream is there for a reason.

00:55:52These tubes are usually sealed with foil, so unless you love breaking your nails trying

00:55:57to open them, just flip the cap over and push.

00:56:01Your bobby pins might not stay in place if the grooves aren't facing the right way.

00:56:05They should always be on the bottom, close to your head.

00:56:09Still coming loose?

00:56:10Well, put a squeeze of hairspray right onto the bobby pin before you put it in your hair.

00:56:15Your cotton rounds pack has those strings on it, so you can hang it on a handy hook

00:56:20in the bathroom.

00:56:21But there's no need to loosen and tighten it back up every time.

00:56:25Check out the bottom of the pack – it has a perforated line.

00:56:28Tear it open carefully, and you're good to go.

00:56:32Two zips too much?

00:56:33Maybe, but they come in handy as a clever anti-theft device.

00:56:38Just lock them together.

00:56:39Now no one can open your backpack!

00:56:41Don't have a lock on you?

00:56:43You can also tie them together with some string, or even just a paperclip – anything to slow

00:56:48those pickpockets down.

00:56:51That tiny little button on the back of a shirt collar is used to hold your tie in place.

00:56:55Hey, you don't want your tie trying to escape back there!

00:56:59New manufacturers care about their customers, so most running shoes now have a special anti-blister

00:57:05system pre-installed.

00:57:07Sounds intense, but it's basically just that extra hole on top of your sneakers.

00:57:12Make a loop with the extra hole, inserting the lace backward.

00:57:16Cross your laces and put them through the loops.

00:57:18Now pull the laces down to lock your foot in place.

00:57:22Now run.

00:57:23Yeah, go ahead.

00:57:25Bar headrests are all about comfort, and detachable headrests are all about safety.

00:57:30If you pull the headrest out, you'll see two sturdy metal bars.

00:57:34If you ever get locked or trapped in your car, you can use the bars to smash the window

00:57:38and get out.

00:57:40If you've got some pesky parsley stuck in your teeth, try this tip.

00:57:44It can be hard to get it out with loose floss.

00:57:47You need more tension, so just tie it in a knot.

00:57:51It's not an accident that soy sauce bottles have two spouts.

00:57:55The sauce is liquid, and it flows out of the bottle pretty easily once you turn it over.

00:58:00Most Asian food lovers have spilled it at least once in a lifetime.

00:58:04That's why, nowadays, restaurants prefer serving soy sauce in special bottles that

00:58:08have two spouts.

00:58:10This design allows you to control when and how much sauce will come out.

00:58:14Just put your finger on one spout when you pour the sauce through another.

00:58:18If you press your finger tightly to the spout, the sauce will stop flowing, and if you remove

00:58:23your finger, it'll flow again.

00:58:26And don't forget to ask your server, hey, wasabi!

00:58:30A hair straightener is an excellent tool, not only for treating your natural curls,

00:58:35but also for fixing crumpled money or documents.

00:58:38You can also use a regular iron for this purpose.

00:58:41Just make sure you don't turn on steaming mode, otherwise there's a risk of damaging

00:58:45the paper.

00:58:47Hair bands are good not only for getting your hair done, but also to open a glass jar with

00:58:52canned food.

00:58:53Your hands might slip on the tightly closed lid, and if you don't open the can from

00:58:57the first attempt, your palms tend to get sweaty, making the task virtually impossible.

00:59:03So put a hair band on the lid to fix your hand and make your grasp stronger.

00:59:08A simple rubber band will do as well.

00:59:11Now it's time to take my sweaty palms and go!

00:59:14You've probably noticed that train and bus seats are covered in fabrics with weird patterns.

00:59:20Have any idea why?

00:59:21Well, they use these patterns to cover any germs and stains on the seats.

00:59:26The brighter the color and the more patterned it is, the harder it will be for passengers

00:59:30to notice any stains and get grossed out.

00:59:33Also, the patterns are usually so ugly that no one even wants to look at them for long

00:59:38enough to spot any stains.

00:59:40So yeah, the pattern is there to make you look away, and if you look, to make it less

00:59:46noticeable.

00:59:47No bus will ever have plain white seats, that's a guarantee.

00:59:52Just a few more bus-related questions to answer, like why don't buses have seat belts?

00:59:58Buses are overall way safer than cars because they were designed this way.

01:00:03The idea behind this is called compartmentalization, meaning that the seats have high backs that

01:00:08absorb energy.

01:00:10The seats are also placed close to one another, so there's less space to move in case of

01:00:15an impact.

01:00:16Also, on a bus, the passengers sit pretty high off the ground, and in case of a collision,

01:00:22the force is absorbed by the bus's deck and not by the people inside.

01:00:27On top of that, a bus is way heavier than most other vehicles, and even if there is

01:00:31a collision, it distributes the force way differently than a regular car.

01:00:36Due to its weight, a lot of force is absorbed, and bus passengers don't experience much crush

01:00:41force, so small and light buses that can't distribute the force as well actually do require

01:00:47seat belts.

01:00:48And we have to remember that buses drive slowly, which minimizes the risk of an accident overall.

01:00:54We all know that school buses are yellow, but why?

01:00:58It's for visibility reasons.

01:01:00Yellow is one of the most easily recognized colors, and for a human eye, yellow is even

01:01:05more visible than, say, red.

01:01:07So, school buses are yellow to make them more distinctive.

01:01:11Also, yellow is visible in the dark, in fog, and on a rainy day.

01:01:16Actually, the color of the bus isn't really a true yellow.

01:01:20It also has a hint of orange.

01:01:23This shade even has an official name, National School Bus Glossy Yellow.

01:01:28By the way, taxi cabs are yellow for the same reason, to be more visible in any weather

01:01:33conditions.

01:01:34Also, buses have huge steering wheels, and I finally learned why.

01:01:39Buses are bigger than regular cars, and they're also way heavier, so it's harder to turn a

01:01:45bus around, and way more strength is required to do so than when you drive a car.

01:01:49A bigger steering wheel that has a bigger radius allows the driver to turn the vehicle

01:01:54more easily, and it requires less force than if the wheel were smaller.

01:01:59Trucks have big steering wheels for the same reason.

01:02:01But have you seen those stuffed toys that some trucks have attached in front of them?

01:02:05Turns out, it's just a way for truck drivers to customize their vehicles.

01:02:10It's like a mascot that speaks about the truck or the driver.

01:02:13It's also a way to communicate to the world that the truck driver isn't all scary and

01:02:18tough, but a soft and harmless person that you shouldn't be afraid of.

01:02:22At least, that's how some truck drivers explain it.

01:02:25In Asia, there's also a belief that road accidents are caused by ghosts, and hanging

01:02:30toys are a way to distract the ghosts from causing harm to the truck.

01:02:35Ever been on a road trip?

01:02:37If you're not the driver, all you have to do is just sit in one place and do basically

01:02:41nothing for hours.

01:02:42It doesn't sound like a hard task, but some people find it terribly exhausting, and because

01:02:47of this, they resent road trips.

01:02:50Why do they get so tired?

01:02:52Well, sitting in a car isn't like sitting in a chair.

01:02:55The brain doesn't relax.

01:02:57Instead, it controls everything that's going on, accounting for movements and making sure

01:03:02that you maintain the right posture.

01:03:04Your brain is constantly working, exchanging bits of information with your muscles, so

01:03:09your body is working.

01:03:11Some people get tired because of this.

01:03:13If you aren't doing much, it doesn't mean that your body isn't doing much.

01:03:17Train rides are way more tolerable, because trains don't stop or change speeds as often

01:03:22as cars do, so the body is more relaxed.

01:03:25And train trips are way more tolerable for people who aren't fans of road trips.

01:03:31Another mystery is why it's way harder to stand still in the same spot for 30 minutes

01:03:36in comparison to, for example, walking for 30 minutes.

01:03:39Again, it sounds like you're not doing anything when you're standing, so why is it so tiring?

01:03:45Well, standing is a pretty hard task for your body.

01:03:48When standing, the muscles in your legs work very hard to support the mass of your whole

01:03:53body.

01:03:54If you're standing, there are not many muscles working, and only a few of them have to do

01:03:58all the work.

01:03:59When walking, there are more muscles working at the same time, so it's easier.

01:04:04Also, when standing, both of your legs are working without stopping.

01:04:08But when walking, each of them gets a tiny break each time you step using the other leg.

01:04:14Why is it that the same book can have different covers?

01:04:17There are several reasons for this.

01:04:19First, the cover may vary because of the target audience.

01:04:22An edition of a book that is being marketed to older people is usually different from

01:04:26the edition aimed at younger people, with the one for younger people usually being brighter

01:04:31and cuter.

01:04:33The cover can also depend on the country the book is being sold in, trying to attract as

01:04:37many buyers as possible based on the tastes of the population.

01:04:41Next, books vary from edition to edition.

01:04:44First, a book is printed in hardcover in small quantities to see how it'll do on the

01:04:49market.

01:04:50If the book is a relative success, there is another edition printed, often in trade paperback.

01:04:55The design of the cover is usually updated with every edition.

01:04:59Also, if a book has a movie based on it, there is usually another edition that follows.

01:05:04This edition will take advantage of the movie and use a movie scene as the cover, making

01:05:09it recognizable for people who saw and liked the movie, and encouraging them to buy a copy

01:05:14of the book.

01:05:16Most books are printed on yellowish paper, and few have plain white pages.

01:05:20But why is that?

01:05:22Unless it's a mass-market paperback edition with paper that's the same quality as a newspaper,

01:05:27meaning bad, it's done with good quality paper.

01:05:30Don't let the yellow hue confuse you.

01:05:32It's usually called cream, and it's a preference for any book because it's less tiring on the

01:05:37reader's eyes.

01:05:39The plain white paper is bleached, and it reflects a lot of light, so it can be exhausting

01:05:44to read for a long time.

01:05:46So, that yellowish paper is the best paper, and publishers regularly use it.

01:05:52Another thing about books is those blank pages they often have at the very end.

01:05:56Their number depends on the number of pages in the book.

01:05:59The thing is that books are printed in signature.

01:06:02A signature is a group of pages that printers fold together and cut to make a book.

01:06:07A signature can have a different number of book pages, with the minimum being 4, and

01:06:12then with other numbers divisible by 4.

01:06:14So, a book that is 300 pages long, in total, will fit in perfectly, and there will be no

01:06:20blank pages left.

01:06:22But if a book needs 303 pages, it'll need an additional signature, and the extra pages

01:06:27will remain blank, often marked with the word, Notes, or with the message, This page is intentionally

01:06:33left blank, to let the reader know that there's no important information missing.

01:06:38Ever wondered why most doctors have sloppy handwriting?

01:06:40No, there's no class in medical colleges on bad handwriting.

01:06:44The reason why it's so common is that doctors are always in a rush, and they write as fast

01:06:49as possible to keep their momentum, so there's no time to care about writing nicely.

01:06:54Also, keep in mind that you're not the only person who they write a prescription for over

01:06:58the course of a day.

01:07:00Writers do a lot of paperwork, working for 10 hours straight, and they're just too tired

01:07:04most of the time to give you a properly written note.

01:07:07Have you noticed that most songs, in general, last somewhere between 3 and 4 minutes?

01:07:12Well, originally, songs were being played on a phonograph record player, from a vinyl

01:07:17record, which was spinning at 78 revolutions per minute.

01:07:20So, the size of the vinyl record basically determined the length of the song.

01:07:25There were two basic record sizes, a 10-inch one, which had room for about 3 minutes of

01:07:30playtime, and a 12-inch, which could fit a 4-minute song.

01:07:34So, at the beginning of the 20th century, if an artist wanted their song played, they

01:07:39couldn't make it longer than that if they wanted to be able to sell a record.

01:07:43Times have changed, but still, most songs are about 3 to 4 minutes long.

01:07:47The initial reason for sticking to this pattern was also because of radio.

01:07:51If a song was too long, it would either get cut in half, or some parts would be left off

01:07:56to make it fit into the 3 to 5 minute radio standard.

01:07:59If an artist wanted the song on the radio, and if they wanted to earn money from it,

01:08:03they'd do their best to make a song that fits the standard, so that the whole piece

01:08:07could be played without alterations.

01:08:09Today, even if there are longer songs, a 3 to 4 minute song is now a tradition that artists

01:08:15typically stick to.

01:08:22If the holes weren't there, steam would build up inside the cracker, and make it collapse.

01:08:29Take a look at a soda bottle, and you'll notice a disc inside the bottle cap.

01:08:33This helps seal in the liquid and the drink's fizz, stopping it from going flat.

01:08:39The long neck on your soda bottle is designed like that to encourage you to hold it there.

01:08:44That way, the heat from your hand will only warm that top bit of the bottle, instead of

01:08:48heating up your whole drink.

01:08:51It's always hard to see your food in the microwave because of that pesky black grate

01:08:55on the window, but it's there to stop harmful microwaves from escaping.

01:09:00Called the Faraday shield, it protects you as well as ensures that your food cooks properly.

01:09:06Food items like chips come with about 43% nitrogen inside their package.

01:09:12It might seem like they sell you half a bag of air, but it's exactly the opposite.

01:09:16Oxygen, the gas we breathe, would react with the chips inside the bag and make them go

01:09:21rancid quickly.

01:09:23It's called oxidizing for a reason.

01:09:26Nitrogen, on the other hand, is an inert gas that helps keep the foodstuffs fresh, and

01:09:31also protects them from breaking during transportation.

01:09:34A bag of chips that has this gas cushion lets you enjoy your crunchies without them turning

01:09:40to potato crumbs.

01:09:41Donuts have holes in them so that the inside and outside cook evenly.

01:09:46Before the holes were added, the inside would often be greasy and doughy while the outside

01:09:51was crisp.

01:09:53Margins on paper aren't for writing in dates and numbering lists.

01:09:58They were originally added to serve a protective function.

01:10:01Back in the day, rats used to be a pesky problem in people's homes, and paper was one of their

01:10:07favorite snacks.

01:10:08Margins were added as a safeguard so that the rats would nibble on blank paper, rather

01:10:14than taking a bite out of your important work.

01:10:17That hole in your hollow lollipop stick isn't to prevent choking should it ever be swallowed.

01:10:22It's actually there to keep the candy in place.

01:10:26Excess candy flows into the hollow tube, and the hole, which when it hardens, keeps the

01:10:31pop in place.

01:10:33If it was a smooth stick, the candy would slide off easily.

01:10:37Hangers come with so many attachments, but do any of us really know what that one with

01:10:42long bristles is for?

01:10:44It's for dusting, and is perfect for cleaning framed art, blinds, and lampshades.

01:10:50What's the difference between a wooden hanger and a plastic one?

01:10:53Aside from helping keep your clothes in shape, cedar wood hangers also repel moths and bugs.

01:11:00Salt isn't just used for cooking.

01:11:03It can get rid of tough smells.

01:11:05Rubbing salt on your fingertips after chopping garlic should remove the smell.

01:11:10It also works on shoes.

01:11:12Toasters have a secret slide in the bottom that can be removed, so you can clean out

01:11:16all those annoying breadcrumbs.

01:11:19If you ever had problems with popping chocolates from the box, look at those little holes around

01:11:24them.

01:11:25They're there to help you.

01:11:27If you push a hole right next to the candy, it'll jump out easily.

01:11:32When you take a sip from a coffee cup with a lid, it decreases air pressure inside the

01:11:36cup so air tries to get in.

01:11:39The tiny hole on the lid allows air to enter that way, so liquid can smoothly pour out

01:11:45the main hole.

01:11:47More on beverage lids.

01:11:49The small button on them let restaurant workers and customers, too, understand what's in

01:11:54a cup.

01:11:55Near each button, there's a name.

01:11:58Just look at which one is pushed down.

01:12:00The numbers on the fruit stickers tell you how exactly they were grown.

01:12:05If there are 4 digits and the first is 4 or 3, the fruit has been sprayed with pesticides.

01:12:12If there are 5 digits and the first is 9, the fruit has been grown organically.

01:12:18If there are 5 digits and the first is 8, the fruit has been genetically modified.

01:12:25When you're on your way back to the car after bagging up everything you bought, use loops

01:12:29on a shopping cart to hang the bags.

01:12:32Now softer items like bread, eggs, fruit and veggies won't get squashed by the heavier

01:12:38goods.

01:12:40If you don't have anyone to hold the other end of your tape measure when you try to measure

01:12:44something, tap a nail on it.

01:12:47Now simply hook your tape on it using the tiny hole all tape measures have.

01:12:53The square-shaped spoon that goes with a McFlurry helps to mix the ice cream toppings through

01:12:58the dessert.

01:12:59The spoon hooks directly to a machine and spins around.

01:13:04Padlocks that are used outside quickly get out of order because of rain.

01:13:09See this little hole in the bottom?

01:13:11It's made for pouring engine oil inside.

01:13:14Do this and the key will again turn in the lock without any difficulty.

01:13:19You keep banging the bottom of a glass ketchup jar but nothing's coming out.

01:13:24Here's a little tip.

01:13:25Turn your ketchup bottle at an angle and tap on the middle of the neck.

01:13:31In many fast food restaurants, customers fill tiny folded paper cups to get a portion of

01:13:36ketchup or mustard.

01:13:38Here's the news.

01:13:39The cups are supposed to unfold and turn into small paper platters to hold a great deal

01:13:44more sauce.

01:13:47That little hole on the handle of a pot or a frying pan isn't just for hanging them on

01:13:51the wall.

01:13:53When cooking, put the end of your utensil in the hole and it'll be propped over the

01:13:57pot to save your kitchen from extra mess.

01:14:01The blue or any other dark color bristles on your toothbrush are meant to remind you

01:14:05when it's time to get a new one.

01:14:07If you see that bristles have become pale, change the toothbrush or its head.

01:14:13An extra hole at the upper part of the sink has multiple hidden functions.

01:14:18First, in case someone forgets to close the tap, the water won't overflow and the bathroom

01:14:23won't get flooded.

01:14:25Second, thanks to that hole, the water drains faster as it gives an escape for the air helping

01:14:31the water flow down.

01:14:33Most metallic zippers have a hidden lock inside them to save you from awkward situations such

01:14:38as an undone fly.

01:14:40Don't leave the zipper handle in an upward position.

01:14:44When you pull it downwards, it automatically locks.

01:14:47It's all thanks to those tiny grooves hidden underneath the handle.

01:14:52Spoiled milk emits gases like most foods when they go off.

01:14:56A classic plastic milk jug has a concave shape on one side.

01:15:01So when the gases expand inside the jug, it expands too and the concave shape curves out.

01:15:08Also, if you want to save some milk for later and freeze it, the jug will expand when the

01:15:12milk gets solid as well, occupying more space in a jug.

01:15:17Bath foam isn't only for fun or a nice smell.

01:15:21It also helps regulate the temperature.

01:15:23The bubbles keep the water hot so you can enjoy a bath a bit longer.

01:15:28Anyway, it works for acrylic bathtubs only.

01:15:31Those made of metal lose heat really fast either way.

01:15:35Many cups and mugs have little grooves on the bottom on purpose.

01:15:39They're designed for washing machines.

01:15:42The grooves let the water flow and not spill over your feet when you take the cup out.

01:15:47Also, those grooves let the air flow so the cup doesn't crack even if the tea is scalding.

01:15:54A point on an ointment cap is there for a reason too.

01:15:58Most tubes are usually sealed with foil and it's better to avoid opening it with fingers

01:16:03unless you're ready to say goodbye to your nails.

01:16:06A point easily opens even the most safely sealed tube.

01:16:11Escalator brushes aren't for keeping your shoes clean and polished.

01:16:15It might be tough to apply wax right on that brush while the escalator's on the move.

01:16:19It's for your safety.

01:16:21Brushes won't let you come close to the edge so a long coat or boot cut jeans won't end

01:16:26up in between the steps.

01:16:29All Tic Tac containers are designed to dispense one Tic Tac every time you open it.

01:16:35The lid has the same shape as the candy.

01:16:37Turn the container upside down, gently shake it, and slowly open it.

01:16:42You'll notice only one candy stuck between those lid grooves.

01:16:46So if you just open the container and shake it until five or even more candies fall into

01:16:51your mouth, it means you've been eating Tic Tacs wrong all this time.

01:16:56Over 40 billion Oreos are made every single year.

01:17:00It's the world's most popular manufactured cookie.

01:17:03The geometric design stamped into these cookies has the Nabisco logo, the symbol of European

01:17:08quality, surrounding the word Oreo.

01:17:11William Tournier created the chocolate cookie design we see today back in 1952.

01:17:17Headphone jacks might become a thing of the past because of wireless technology, but if

01:17:22you've seen one, you might've noticed the rings at the base of the plug.

01:17:27One ring means single sound playback, two rings represent stereo sound in the left and

01:17:32right ear, while three rings mean you've got stereo and a microphone built in.

01:17:37Now the iconic orange, red, purple, yellow, and lime green rings of Froot Loops hide a

01:17:43deep secret within.

01:17:45They don't represent different fruit flavors.

01:17:48All those rings are the same fruit flavors blended together.

01:17:51The colors are just for show.

01:17:55The E in Dell's logo is at an angle because the founder, Michael Dell, wanted his technology

01:18:01to turn the world on its ear.

01:18:04A compass uses magnets to point to the magnetic north pole, but it's not really north at all.

01:18:10The north pole of a compass magnet points toward the north because the north and south

01:18:14attract.

01:18:15Earth's south magnetic pole is near the geographic north, while the north pole is near Earth's

01:18:21geographic south.

01:18:23Confusing, isn't it?

01:18:25Those little red spots you sometimes see after you crack an egg are nothing to be worried

01:18:30about.

01:18:31Tiny blood spots can be caused by a small rupture in the blood vessel of the hen as

01:18:35it was laying the egg.

01:18:37Eggs with these blood spots are safe to eat, but that spot can be removed if you want.

01:18:42It won't affect the taste of the egg.

01:18:45That's comforting.

01:18:47Ketchup is a word taken from many cultures, like Chinese, Malay, and Indonesian.

01:18:52It originally meant a pickled fish sauce.

01:18:56Ketchup is also an acceptable spelling use, however, ketchup is the most popular way it's

01:19:01spelled these days.

01:19:03Airbnb's logo isn't a bent paperclip as it may seem to be.

01:19:08Bello, as it's called, for belonging, means more than that.

01:19:11There's a person's head, the location symbol, and a heart for love.

01:19:16All joined together, they make Airbnb's iconic A and symbol of togetherness.

01:19:22E120 or Natural Red 4 food coloring, aka carmine, is made from tiny beetles.

01:19:29It's been used to color anything from cakes to candy to even drinks.

01:19:34That shine on candy also comes from bugs.

01:19:38This time it's the Indian female lac bug.

01:19:41The beetle leaves behind a substance that is scraped from the trees to be formed into

01:19:45dry shellac that gives that glossy look.

01:19:49The Mozilla Firefox logo isn't a fox at all surrounding the planet.

01:19:54It's a red panda instead.

01:19:56The name Firefox is the English translation of its Chinese name.

01:20:01Those maintenance covers in the street are round for safety reasons.

01:20:05In past civilizations, like Ancient Rome, manholes – that's what they were called

01:20:10back then – were square-shaped slabs of stone.

01:20:13Unfortunately, these were prone to accidents.

01:20:16If they weren't placed properly, a square cover could slip through the square hole diagonally.

01:20:21Ow!

01:20:22Placing a round cover eliminated this problem.

01:20:25A circle cover won't slip inside because there are no angles.

01:20:30A tomato isn't technically a vegetable, but a fruit.

01:20:34Banana trees aren't related to palm trees or trees at all – they're herbs.

01:20:39Banana is considered an herb because it never builds a woody trunk the way a tree does.

01:20:44Instead, it forms a succulent stalk like lemongrass or its cousin, ginger.

01:20:49You can call them berries as well.

01:20:52The Golden Gate Bridge color wasn't meant to be the orangey-red that it is today.

01:20:57The bridge's original color was suggested to be many other colors, such as black with

01:21:02yellow stripes or even candy cane to make it visible for passing ships and aircraft,

01:21:08especially in the frequent San Francisco fog.

01:21:12But when the steel arrived covered in an orange primer to protect it from rust, the architect

01:21:17preferred the international orange color, and it stuck.

01:21:23Those legs on the back of keyboards aren't an ergonomic design to help your wrists sit

01:21:27better.

01:21:28Using the legs out for too long can tire and hurt your wrists, plus slowing your typing

01:21:33down.

01:21:34The hinge legs are just there to help you see the letters and numbers better if you

01:21:38don't know how to touch type.

01:21:41The color of a chili pepper reveals nothing about its taste or heat.

01:21:46The smaller a chili is, the hotter it'll usually be.

01:21:50The heat doesn't come from the seeds, as believed, but the white membranes that hold

01:21:54them.

01:21:56Hidden within the Toblerone logo of the mountain is the image of a bear standing on its hind

01:22:01legs about to eat that yodeler over there.

01:22:04No, not really.

01:22:06This is because bears are a big part of Bern, one of the biggest cities in Switzerland where

01:22:10the founder created the triangle chocolate tree.

01:22:14Toblerone is also a play on the founder's family name, Tobler, and the Italian word

01:22:19Torrone, for honey and almond nougat.

01:22:22The space below a cup of noodles is there to protect the noodles during transport.

01:22:27This technique is called a middle suspension.

01:22:30Not only are they protected better in their styrofoam cup, but it also helps those noodles

01:22:35soften more evenly and quickly.

01:22:38Even though you might've thought that the hole in the barrel of a ballpoint pen had

01:22:42no purpose, it does.

01:22:45It's called a venting system, which helps the ink flow more smoothly.

01:22:49This way, an even amount of air pressure is created inside and outside the pen, allowing

01:22:55the ink to flow into the point easily.

01:22:58One of the most recognized logos in the cycling world has a hidden item in its famous logo.

01:23:04It's called the Tour de France name.

01:23:06A cyclist hides in the O, U, and R.

01:23:11Those metal brackets on the top of the nozzles in gas stations have a unique design put into

01:23:16place in case of accidents.

01:23:18If a dodo accidentally forgets the nozzle is still inside the gas tank and starts driving

01:23:24away, the magnetic brackets separate without damaging any part of the gas pump.

01:23:30Wendy's logo is designed off of the daughter of creator Dave Thomas.

01:23:35It's also named after her nickname, but there is more to the logo than that.

01:23:39Wendy's collar spells out the word mom.

01:23:43While unintentional, it became something to mean a homey feel, more than any other restaurant

01:23:48out there.

01:23:50Finding the right lane to be in while driving for your exit can sometimes be confusing,

01:23:55especially in a foreign country.

01:23:57Pay attention to the side of the road that exit signs are located.

01:24:01It'll be the lane you need to be in.

01:24:04Some toothpaste has a little seal on them that needs to be removed before you can use

01:24:09them.

01:24:10Instead of peeling back the foil layer, the toothpaste lid has a little spike on the top

01:24:15just for this reason.

01:24:18Tostitos have a secret symbol hidden right in the middle of their name.

01:24:21The two T's in the middle of the logo resemble two people enjoying Tostitos over a bowl of

01:24:28salsa.

01:24:29The salsa bowl is in red and forms the dot in the I.

01:24:33One of the most recognizable figures in the world, the Statue of Liberty, for 16 years

01:24:38functioned as a fully operational lighthouse.

01:24:41However, the light was barely visible even from Manhattan.

01:24:46In 1901, it was eventually decommissioned as a lighthouse.

01:24:50Tourists could even visit the torch for a stunning view of the city.

01:24:54But an accident damaged the Statue of Liberty's torch in 1916, and it's been closed to the

01:24:59public ever since.

01:25:02The Do Not Remove Under Penalty of Law tag on mattresses isn't put there for the consumer

01:25:07or void your warranty either if you do remove them.

01:25:11In the 1900s, manufacturers used to create the filling with basically anything.

01:25:16Animal hair, old hospital beds, or clothing.

01:25:20It didn't matter at the time.

01:25:22District laws created the tags to stop recycled materials from being used and sold as new.

01:25:28Good thing!

01:25:29Toyota's symbol is more than just some random rings combined.

01:25:33The three overlapping ovals symbolize the merge of the hearts of consumers and Toyota

01:25:38together.

01:25:39A California sushi roll is made of seaweed, rice, cucumber, avocado, and crabmeat.

01:25:47But it's not crabmeat at all.

01:25:49Tsurimi is an imitation crabmeat.

01:25:51It's made of white fish blended with sugar instead of crustaceans.

01:25:56The fish mixture is then heated and pressed into shape.

01:26:00The logo for Beats is just a lowercase b inside of a red circle.

01:26:04The circle represents a human head, with the b being the headphones in their shape.

01:26:10All those little black dots around the edges of car windows are called frits.

01:26:15A frit is a painted black enamel that's put into windshields during manufacturing.

01:26:20They block ultraviolet rays and help distribute temperatures between the metal and glass.

01:26:25There are 24 symbols hidden inside the Unilever logo.

01:26:29Let's count, shall we?

01:26:31The sun, dove, plant, spark, chili pepper, spoon, bowl, flower, ice cream, hand, hair,

01:26:41lips, swirl, fish, clothes, b, particles, packaging, transformation, waves, DNA, palm

01:26:50trees, heart, and virtuous cycle, whatever that is.

01:26:54These represent everything that the company believes in and produces.

01:26:59DNA?

01:27:00Bobby pins are designed so that the zigzag part goes onto your scalp, not the flat part.

01:27:06It gives a greater grip on the hair and skin, making the pins stay in longer.

01:27:11The story that the pins were named after those fashionable London constables called

01:27:15Bobbies is not true.

01:27:18I made it up.

01:27:20If you've ever gotten bored while waiting in a car like I have, you might've played

01:27:24around with a headrest.

01:27:25Yep, you can pull them off, and they'll come right off relatively easily.

01:27:30It seems useless at first, but that's something you'll want to do if you're ever trapped

01:27:35in a car and need to break a window to get out, like I do.

01:27:38Even a box of aluminum foil has its secret.

01:27:42On the side of the box, you can see a small tab you can push in.

01:27:46So simple, but that's what actually holds the roll of foil in place.

01:27:51This tab makes it way easier to unroll a sheet and tear it off without any frustration.

01:27:58Ever wondered why gripping a certain tool, handle, or even a pen kind of feels more secure

01:28:03when it's coated with a rubbery material?

01:28:05The keratin of the outer layer of the human skin is rough and stiff at a small scale.

01:28:11So let's say you have a polished metal or glass which is stiff but also a smooth and

01:28:16impenetrable surface.

01:28:18When you encounter that, the actual contact area is small, as is the friction at the beginning.

01:28:23Your sweat pores secrete moisture, which is why the keratin gets hydrated and becomes

01:28:28softer.

01:28:29Because of that, it requires many seconds for the contact area to increase to the same

01:28:34value it reaches almost right away with some soft materials like rubber.

01:28:39This mechanism might be used by our tactile senses when we want to identify materials.

01:28:45Now, the pom-poms on beanies and other hats have their purpose, and it's not just to look

01:28:51cute and fluffy.

01:28:52Well, at least they did have a purpose.

01:28:54One of the theories says French sailors used to wear hats with pom-poms so they wouldn't

01:28:59hurt their heads on the ship when the weather got rough.

01:29:02Yep, the ceilings of the ship were really low.

01:29:05When the waves were too big, bang, you could easily hit your head on the ceiling.

01:29:09So the pom-poms came in handy.

01:29:11Now they're just a cute addition to our winter cats.

01:29:15That mysterious drawer under the oven, the one where you keep all your kitchen gear you

01:29:20just don't know where else to put?

01:29:22Well, you used it well in that case, but the drawer was originally designed for keeping

01:29:26your meals warm, at least until you're ready to serve them.

01:29:31And that space under your lower cabinets that protrudes slightly and can't be lifted?

01:29:36This area is also called a toe kick.

01:29:38It's the reason why you can stand closer to the counter while cooking.

01:29:42Also, the doors of the cabinets are off the ground, so they'll swing over your toes.

01:29:48The cabinet under the sink isn't for storage either.

01:29:51Maybe that's where you keep your cleaning products, but its real purpose is to give

01:29:55you access if your sinks leak and you need to do some plumbing work.

01:30:00That weird little hole at the top of a lollipop stick you can see after finishing a candy

01:30:05is not a whistle.

01:30:07It has something to do with the manufacturing process.

01:30:11When pouring hot molten caramel into a mold, some of it will seep into this mysterious

01:30:16hole and harden.

01:30:17This way, the candy will stay on the stick and won't fall off.

01:30:23Keyboard letters aren't just randomly arranged the way they are.

01:30:26The first keyboard ever made belonged to the typewriter.

01:30:29Typists eventually got so good at their job, they started typing too quickly, so the key

01:30:34arms would get cross-wired at some point and stuck.

01:30:38That's why manufacturers had to make the order of keys more random to intentionally

01:30:42slow down typists so they could keep the machine running.

01:30:47Do you like to let those brushes on the side of the escalators in malls polish your shoes?

01:30:52Believe it or not, that's not their main gig.

01:30:55The bristles are there for safety.

01:30:57People used to get their bags and clothes stuck in those escalators when they would

01:31:00stand too close to the sides.

01:31:03These nylon bristles kind of play with people's minds, and they keep their feet away from

01:31:07the escalator's skirt panels and avoid accidents.

01:31:12Most people assume bobby pins have curves for fashion, which is why they mostly place

01:31:16it in their hair with the wavy side up.

01:31:19But those little waves are actually there to catch the underlying bulk of hair and grip

01:31:24the pin into place.

01:31:26So the wavy side should go down.

01:31:29You've probably noticed measuring tapes mostly come with a metal stub that ends with

01:31:33a small slot.

01:31:35If your hands are full of stuff, simply hang the slot on a nail for measurement.

01:31:40If you take a closer look, you'll see the stub is a little bit serrated on one side.

01:31:45This means you can use it to mark the points so you don't even need a pencil.

01:31:50If you spend a lot of time in planes, you've probably noticed that little hole located

01:31:54at the bottom of the window.

01:31:56Nothing to be nervous about, it's what keeps us safe while flying high.

01:32:00It's something called a bleed hole.

01:32:03You can see right there in the middle of the pane of the three window panes that actually

01:32:07protect passengers from the outside pressure.

01:32:10This hole may be tiny, but it takes all that pressure off the outer one.

01:32:14The hole also gradually exposes it to cabin pressure, which helps with fixing pressure

01:32:19imbalances on the windows, if there are any.

01:32:23There's a number 57 staring at you from the middle of the Heinz ketchup bottle forever.

01:32:28According to the company, only 11% of people are aware the number really has nothing to

01:32:34do with the product label.

01:32:35It's actually a sweet spot, where you can tap to get the sauce onto the plate.

01:32:40So next time you want some ketchup, there's no need to bang the bottom off, just hit this

01:32:45spot.

01:32:46Grooves on the bottom of cups are there to make cleaning them in the dishwasher more

01:32:51convenient.

01:32:52When you place your cups upside down, these grooves will allow the water to flow rather

01:32:57than stagnate.

01:32:59This way, the water won't spill onto your feet when you take the cups out.

01:33:02The grooves are there to allow cool air to flow beneath the cup too.

01:33:07They also keep cups from cracking when they heat up after you pour hot beverages in.

01:33:12You probably noticed that little dot next to the camera on an iPhone and probably thought

01:33:18it was a flash.

01:33:19Nope, not a flash, but a microphone in charge of catching sounds when you're using the

01:33:24back camera.

01:33:26Next time you're looking for a quick bite and decide for fries at McDonald's, check

01:33:31that bendable flap near the top of the box.

01:33:34Some like to bend it towards the fries.

01:33:36That way, you can cover your fries up and keep them warm.

01:33:39But if you're not that patient, you can flip the flap backward and basically turn

01:33:44it into a makeshift plate for your fries.

01:33:46If you bend it down firmly enough, you don't want it to spring back up and spread the sauce

01:33:50all over you.

01:33:51Take it from me, it's messy.

01:33:54In the 1970s, people didn't want toothpaste just to keep their mouths healthy, but also

01:34:00to freshen their breath.

01:34:01Aquafresh decided to answer that call, so they added a blue stripe to their product.

01:34:07Since consumers started paying more attention to their teeth and gums, the company added

01:34:11a third red stripe to their paste.

01:34:13The paste now has three functions – freshening, cleaning, and plaque control.

01:34:18And yes, solid white toothpaste can offer the same benefits, but brands continue to

01:34:23add stripes to their paste anyway.

01:34:26Speaking of toothpaste, do you know those colors on the bottom of tubes?

01:34:30The colors don't mean anything in particular.

01:34:33They're there to help in the manufacturing by telling light sensors where the end of

01:34:37the tube is.

01:34:38Thanks to it, the machine can cut and seal the tube properly.

01:34:42Hand sanitizers are commonplace nowadays, and you can apply them in many other ways

01:34:47besides just cleaning your hands.

01:34:49It also works great when you want to remove stains from your clothes.

01:34:54Sanitizer breaks up oily, greasy spillages and does a great job as a degreaser.

01:34:59You can even use it as a deodorant if you get caught out on a hot day!

01:35:04Grab your phone.

01:35:05Good, now turn it around.

01:35:08You see that little dot between the camera and the flash?

01:35:10That's a tiny microphone.

01:35:13Bet that's something you didn't know.

01:35:14What's it doing there?

01:35:16Well, when you're on a phone call, this little guy's busy at work reducing the amount

01:35:21of background noise other people hear when you talk.

01:35:24That's right, if it wasn't for this, calls wouldn't be as nearly as crisp as they are

01:35:29now.

01:35:30You're lost in the woods and you're rushing to get back to camp.

01:35:35You suddenly remember you've got something that can help.

01:35:38You grab one of your chest straps from your backpack and whistle on it.

01:35:43Yep, that's right.

01:35:45A lot of bags have this feature in them, especially the ones made for the outdoors.

01:35:50It isn't long before you hear the call of one of your friends and you follow them back

01:35:54to the warm campfire, saved by this cool bit of design.

01:35:59If you're a curious person, you might have wondered what that little pocket in your jeans

01:36:03is doing there.

01:36:04You know, the one that's inside the bigger pocket?

01:36:08People often use it to store coins and bills.

01:36:11But it's not meant for that.

01:36:13It's actually designed to store your pocket watch safely.

01:36:17Maybe that's where the name pocket watch comes from?

01:36:22You finally arrive home after a long day's work.

01:36:25You understandably don't feel like cooking, so you sit on the couch and watch a bit of

01:36:30TV and order some takeout.

01:36:32How about Chinese?

01:36:33Ah, perfect.

01:36:35There's the doorbell.

01:36:37That has to be your food!

01:36:38It smells delicious!

01:36:40Wait, before you grab the plates, do this instead.

01:36:44Open your Chinese food container on the table.

01:36:46It becomes the perfect plate.

01:36:49And it's cardboard.

01:36:50Which means no cleaning either!

01:36:53The can of soda you got with your food has a cool feature too.

01:36:58Look at the tiny metal tab there, the one you use to open the can.

01:37:02Guess what?

01:37:03You can fit your straw in there!

01:37:04In fact, that's exactly what they're made for!

01:37:07Go ahead, try it for yourself!

01:37:10If you're not at your computer, take a look at your keyboard right now.

01:37:14If you're not, that's okay.

01:37:15Here's one on the screen.

01:37:17The keycaps are arranged in what's called the QWERTY layout, named after the first 6

01:37:23keycaps below the numbers.

01:37:25As it turns out, it wasn't always this way.

01:37:27They used to be laid out alphabetically, which would make more sense when you think

01:37:31about it.

01:37:32The alphabetical layout fell out of use because long ago, there were things called typewriters.

01:37:38Remember those?

01:37:40You pressed down a key, and a type bar would fly out, hitting an inked ribbon and stamping

01:37:45a letter on the piece of paper.

01:37:48Eventually typists got good at this and typed faster.

01:37:51Too fast.

01:37:52The type bars would eventually get caught in a log jam with each other, ruining the

01:37:57flow.

01:37:58To fix this problem, they made keyboards with randomized keycaps.

01:38:02The new layout actually worked better because it made typing harder, helping to slow typists

01:38:07down and prevent the type bars from getting stuck.

01:38:10Much better!

01:38:11Today, no type bars.

01:38:13No typewriters, mostly.

01:38:15People are still fast nowadays, but you just can't help but wonder who was faster, though.

01:38:20Us or them?

01:38:22Typewriters have another hidden feature too.

01:38:24Have you ever noticed that the F keycap and the J keycap have little bumps on the bottom

01:38:29of them?

01:38:30As it turns out, they're there to help people figure out where they are on the keyboard

01:38:34without having to take their eyes off the screen.

01:38:38Grabbing a takeaway cup of coffee at your favorite cafe might be just what you need

01:38:43to fully wake up in the mornings.

01:38:45When you get back home or to work, though, you might be afraid to stain your desk when

01:38:50you put the steaming hot coffee down.

01:38:52Worry not, your plastic lid isn't only good for keeping your coffee hot, it also doubles

01:38:58as a coaster.

01:38:59In fact, they're the perfect size to hold a cup.

01:39:02Try it for yourself!

01:39:05This one's gonna come in handy if you're a home cook.

01:39:08If you're like me, you might have a bit of trouble deciding how much pasta you need

01:39:12for just one serving.

01:39:14Well, if you've got a pasta scoop, grab that.

01:39:17Most people don't know what the little hole in the middle is for and assume it's supposed

01:39:21to help with water drainage or something.

01:39:24It turns out that it helps you measure out a perfect serving.

01:39:28Just see how much dry spaghetti you can fit in the hole and use that as one portion.

01:39:35Out of the store buying coat hangers, you might notice that the plastic ones feel cheaper

01:39:40than the wooden ones.

01:39:41There's a good reason for this – wooden hangers are made out of cedar wood.

01:39:45The big difference between the two is that the wooden ones repel bugs and moths.

01:39:52They're stronger and last longer too, perfect for things that might stay in your closet

01:39:56for a long time.

01:39:59When you brush your teeth, you might have noticed that your toothbrush has blue bristles.

01:40:04They're not just there for show.

01:40:05In fact, they're there to tell you when it might be time to switch toothbrushes.

01:40:10These bristles lose their strength and color when the brush has been worn down, letting

01:40:15you know that it's time to get rid of it.

01:40:19Microwaves often look a bit like mini-TVs, especially ones where you can clearly see

01:40:24the black film around them.

01:40:26This is actually a really important feature that's used to keep the radiation from slipping

01:40:30away.

01:40:31They're called Faraday cages, if you want to get technical.

01:40:35This is why you can stand next to a microwave without melting into a puddle.

01:40:41That's not to say you should stand in front of the microwave and watch your food heat

01:40:44up, but at least you know you won't grow an extra ear or something.

01:40:49Okay, not really.

01:40:51Some ovens have a drawer under them.

01:40:53It's tempting to use this to store random junk you don't use often, but there's a better

01:40:57use for it.

01:40:58Instead, this should be used to help keep the food that's waiting to be served hot.

01:41:03You can take it out of the oven and store it right in this drawer, keeping your oven

01:41:07free for you to carry on cooking.

01:41:11You're on a plane looking around trying to pass the time before takeoff.

01:41:16When you examine the window, you notice this has a little, very tiny hole on its bottom.

01:41:21Don't worry, it's not broken.

01:41:24It's there to relieve the pressure that builds up over time as the plane goes up and down.

01:41:29It also lets the air flow through it.

01:41:32Raise your hand if you've ever ridden on an escalator and scrubbed your shoes on its

01:41:36bristles.

01:41:37I'm guilty of doing that, maybe more than I should.

01:41:40It's not there to clean your shoes, though.

01:41:42It's an important safety measure.

01:41:44It stops your shoelaces, clothing, and other stuff from getting stuck in there, avoiding

01:41:49a nasty scene when you go to get off.

01:41:53Sometimes a piece of fabric comes with your new clothing.

01:41:56It usually comes along with the extra buttons in a little plastic bag.

01:42:00You might think it's just a piece of fabric to use for future patching, in case you rip

01:42:05it.

01:42:06But that isn't its purpose at all.

01:42:07It's actually supposed to be put in the washing machine to test how it reacts to various

01:42:12washings.

01:42:13Now, you don't have to worry about shrinking your new, expensive coat because you know

01:42:18how it'll react to the wash.

01:42:20Bubbles!

01:42:21Who doesn't love bubbles?

01:42:23Most people have fond memories with bubble blowers as a kid.

01:42:26But as adults, the closest thing we can get to recapturing that feeling is with bubble

01:42:31baths.

01:42:32After a hard day at work, there's nothing better than dipping into a nice warm bubble

01:42:36bath.

01:42:37Right, guys?

01:42:38And the bubbles do more than just clean you.

01:42:41If they're high-quality bubbles, they'll serve as a heat insulator.

01:42:45So they make sure that your bath stays warm for longer.

01:42:48If you grab a full juice box a bit too firmly, you can get sticky liquid all over the place.

01:42:54To avoid such situations, flip up the tabs on the sides of the juice box.

01:42:58You can use them to hold your drink.

01:43:01Some cars have a tiny coffee cup sign on the dashboard.

01:43:04It's the vehicle's anti-drowsiness mechanism.

01:43:07Some manufacturers equip their cars with a drowsiness detection system.

01:43:11It analyzes the speed, wheel angle, and lane deviations, and figures out if it's time

01:43:16for the driver to take a break.

01:43:18If it is, the vehicle makes several audio signals, and the coffee cup sign starts to

01:43:23flash.

01:43:24Produce stickers on fruit and veggies you get at the supermarket are full of information.

01:43:29If there's a 4-digit code on the sticker, the product was grown conventionally.

01:43:33In most cases, it also means that pesticides were used in the process.

01:43:38If the product is organic, its sticker has 5 digits, and the first one is 9.

01:43:43Genetically modified products also have a 5-digit code, but the first number is 8.

01:43:49Sugar used to be sold in sugar loaves.

01:43:52Those were tall, hard cones.

01:43:55Those times, to get sugar ready for tea, people had to use special hammers to break a loaf

01:43:59apart first.

01:44:01After that, they cut the sugar into smaller and more nicely shaped lumps.

01:44:06Only in the middle of the 19th century, people invented the first press that cut sugar into

01:44:10cubes.

01:44:11This way, the product was easier to store and transport.

01:44:14A little hole in the end of your wrench can provide your screwdriver with some extra torque.

01:44:19Just slide the end with the hole over the screwdriver.

01:44:22You can also use this method when the angle is awkward.

01:44:26While driving, when it's already dark, you might get blinded by the headlights of the

01:44:30car moving behind yours.

01:44:32If you have a manual rear-view mirror, find a tab at the bottom and flip it.

01:44:36The mirror has a reflective material behind its glass.

01:44:39By flipping the tab, you change the angle of this material, dimming the lights in the

01:44:44mirror.

01:44:45Most ice cream scoopers come in different colors.

01:44:48It has nothing to do with aesthetics.

01:44:50The color indicates the size of the scoop.

01:44:53This way, you can easily figure out how many scoops you'll need to fill 32 ounces.

01:44:57Wow, a 32-ounce sundae!

01:44:59Sign me up!

01:45:01Some caps on small tubes are hollow on top and have a little spike inside.

01:45:06Its purpose is to break the foil sticker sealing the tube.

01:45:09The neck fits right in this hole, and the spike is designed to break the seal.

01:45:13This way, you don't need to tear the tiny foil seal off with your fingers.

01:45:18The letter R in a circle on the product's packaging means that the trademark is officially

01:45:23registered.

01:45:24Once it's done, the trademark's owner has the right to place this letter on all

01:45:28their products.

01:45:29They can also sue anyone who tries to use their trademark.

01:45:33A gas pump usually has a small metal latch or hook on its handle.

01:45:37That's a trigger lock.

01:45:39You can use it to lock the handle in the open position.

01:45:41Then the gas will keep pumping even if you walk away.

01:45:46Candies used to be shaped randomly or have no shape whatsoever in the past.

01:45:50Dishonest people used it to their advantage.

01:45:52They stole valuable metals the coins were made of by chipping their corners off.

01:45:57It was illegal, and to prevent this kind of fraud, round coins were invented.

01:46:02After that, it became easy to instantly notice when a coin had been fiddled with.

01:46:07Those two holes in a lollipop stick are there to hold the candy in place.

01:46:11When the stick is dipped in hot liquid syrup, it flows into the holes and solidifies.

01:46:16Now your sweet is there to stay.

01:46:19Fabric squares that come with clothes are for you to try out your cleaning products

01:46:23on them first.

01:46:24This way, you won't ruin the entire item once you decide to wash it.

01:46:28The holes in the bottoms of earphones allow air to circulate up and through the speakers.

01:46:33It helps to increase low frequencies, making the bass sound deeper.

01:46:37The sound quality also becomes much better.

01:46:40Don't I sound better?

01:46:41Thank you!

01:46:42Microwavable instant rice loves to fall over in the microwave, if you're me, that is.

01:46:47And like me, you've probably struggled with keeping the package upright.

01:46:52As it turns out, the flaps that fold out from the bottom create a nice sturdy base.

01:46:57Push them out and give it a try!

01:46:59Hey, why didn't I learn this in school?

01:47:03Has that half-finished 2-liter bottle of soda left over from pizza night gone flat?

01:47:09Rather than pouring it down the drain, add it to your compost heap.

01:47:13The sugar feeds good microorganisms and increases the acidity of the pile, helping organic material

01:47:19break down faster.

01:47:22Any pair of scissors will go blunt sooner or later, but don't let that stop you.

01:47:26There's a product in your kitchen that can help bring them back to life fast.

01:47:32Aluminum foil isn't just for leftover lasagna.

01:47:35Fold a sheet of it into quarters and start cutting.

01:47:38Cutting through the foil will sharpen those scissors right up, but not if they're too

01:47:43blunt.

01:47:44Rescue them while there's still time!

01:47:46Those little escalator brushes aren't there to clean your shoes, even though they can

01:47:50do a rather good job.

01:47:52These bristles are actually a serious safety feature.

01:47:55Without them, clothes, shoelaces, and bags can get caught in them when they're too

01:48:00close to the sides.

01:48:02The little brushes are also there to tickle you, to remind you to look down and take care.

01:48:07Hey, I always thought it was a bug rubbing up against me.

01:48:11Half-belts.

01:48:12Seriously, what's up with those things?

01:48:15Some military jackets used to double as blankets, and the half-belt helped keep the extra material

01:48:20from getting in the soldier's way.

01:48:22Nowadays, they're mostly used as a fashion accessory.

01:48:26Accidentally stapling the wrong pages together is like the worst thing ever!

01:48:31There are worse things, but it's certainly annoying.

01:48:34Especially if the staple takes out a huge piece of your document with it when you try

01:48:38to pry it off.

01:48:40There's actually a simple way to make sure that the stapler pins are less tight and easier

01:48:45to pull out.

01:48:46Take a close look at that metal plate at the front of your stapler, known as the anvil.

01:48:51Turn the stapler upside down and adjust the settings.

01:48:55You're basically changing the stapler setting to temporary.

01:48:58No more tears, no more tears.

01:49:01Mention my name and you'll get a good seat.

01:49:04Toilet seat covers have been used wrong for way too long.

01:49:07I see you ripping off that flap that looks like a tongue.

01:49:11No, you're doing it all wrong.

01:49:13Instead of tearing it off, let the flap sit in the bowl after you put it down the cover.

01:49:18When you flush, the suction will pull on the flap and take it away.

01:49:22Aren't you glad you know that now?

01:49:25That dark square or rectangle at the end of your toothpaste tube?

01:49:29What does that mean?

01:49:30Is it color-coded to show what ingredients are in there?

01:49:33Or does it show whether the toothpaste is synthetic or natural?

01:49:36Well, sorry, but the truth isn't that exciting.

01:49:39The markings are there for the assembly machines.

01:49:42They help the machines know where to cut and fold each tube.

01:49:46We've all driven home from the supermarket, taken a right turn a little too hard, and

01:49:51– crash!

01:49:52Sounds like the groceries volcano just erupted in the trunk.

01:49:56Look closely in the trunk.

01:49:57You might see some little hooks in there.

01:50:00You can hang your bags on them.

01:50:04Some cars have them behind the front seats instead.

01:50:07You can use them to hang clothes or even your take-out bag.

01:50:11You may have noticed that members of the flight crew like to touch the overhead compartments

01:50:15while they're walking down the aisle.

01:50:18They don't have a weird desire to touch everything.

01:50:20There are actually handles along the edges to give them a better grip while walking.

01:50:25Go ahead and use them the next time you feel like a mid-air stroll.

01:50:29It's definitely better than grabbing onto everyone's headrests.

01:50:32Don't you hate that?

01:50:34A shiny brass doorknob adds just the right amount of fancy to your front door.

01:50:39But that's not all it does.

01:50:41Brass, like anything with copper alloy in it, has antimicrobial properties that many

01:50:47harmful germs and bacteria just can't stand.

01:50:50In high-traffic areas, these brass knobs and handles are the perfect way to get rid of

01:50:55those nasty germs without having to use harsh chemicals all the time.

01:51:00The only downside is that brass is a lot more expensive than other metals.

01:51:04That might be why it's hardly used for this anymore.

01:51:08Does your toothbrush have a pattern of blue bristles weaved in with the white ones?

01:51:13It makes the toothbrush look a lot more stylish, but it's not just about looking good.

01:51:18Those bristles actually have a practical purpose.

01:51:21The blue dye is designed to wear off around the same time as when you should replace your

01:51:25toothbrush.

01:51:26You should be switching out your toothbrush every 3-4 months anyway, but those blue bristles

01:51:32are there to give you a gentle nudge just in case you forget.

01:51:36You walk over them every day and never think about it twice, but is there a reason maintenance

01:51:42hole covers are always round?

01:51:44In past civilizations, like Ancient Rome, these covers used to be square-shaped slabs

01:51:49of stone.

01:51:50But all those edges and gaps led to plenty of stubbed toes and accidents for unsuspecting

01:51:56Romans.

01:51:57A round cover eliminated the problem.

01:51:59Plus, it meant you could only open it with a specialized tool.

01:52:04Probably a good idea.

01:52:06The thermos was invented by a Scottish scientist, but not for keeping his coffee warm.

01:52:11He just wanted to keep some chemicals at a stable temperature.

01:52:15He placed a small bottle inside of a larger one and then sucked all the air out from between

01:52:20the two bottles.

01:52:21This same technique is used to make the modern thermos.

01:52:25You can find a pin cushion in just about every household.

01:52:28And strangely, it's always in the shape of a tomato.

01:52:32Ever wondered about that little strawberry dangling from the top?

01:52:35I'm no biologist, but I'm quite sure that strawberries don't grow on tomatoes.

01:52:41Get little things for the needle you're currently using, so you don't lose it in that big pile

01:52:46you have.

01:52:47Stick deodorants go to waste when the casing starts rubbing against your skin.

01:52:51But there's still plenty left in there.

01:52:53Here's an easy trick to get it out.

01:52:56Unscrew the bottom and push it up from underneath.

01:52:59That'll give you a few more days, at least.

01:53:01We all know about these little pockets on jeans where people used to keep their pocket

01:53:06watches.

01:53:07But what about these small metal buttons?

01:53:09They help hold the fabric together.

01:53:11Weavers put the buttons where the jeans can tear during moving and straining.

01:53:16These small holes on some backpacks were designed to tie extra gear to them, so you can pass

01:53:21ropes through them and tie sneakers if you don't want to keep them inside your backpack

01:53:25or in your hands.

01:53:28This tiny dot next to the camera on your iPhone is a microphone.

01:53:32It helps to get good quality of sound while taking a video.

01:53:36The Spotlight feature on your Mac can be used not only for a quick search of files and apps.

01:53:42It also works as a calculator.

01:53:44Just type in a mathematical problem you need to solve.

01:53:47Spotlight also uses internal dictionary data.

01:53:51Enter any word in the search bar, and you can get information about it.

01:53:55You've just bought a new bottle of oil.

01:53:58You're taking off the lid and looking at this little cork that you can tear off by pulling

01:54:02the loop.

01:54:03Take this thing out, but don't throw it in the trash.

01:54:06Put it back in an upside-down position to control the pour's flow by pressing your

01:54:11finger against it.

01:54:14Tiny ridges on the F and J keys on the keyboard help your fingers navigate during touch typing.

01:54:20When your index fingers are on these ridges, you know exactly where other letters are.

01:54:25The brushes on the sides of the escalators are not for polishing your shoes, but for

01:54:30your safety.

01:54:31These nylon bristles prevent your laces and clothes from getting inside the escalator's

01:54:36gears.

01:54:37Now that wouldn't be good.

01:54:40Most door handles are made of brass.

01:54:42This type of metal is good for fighting microbes.

01:54:45Bacteria can't multiply that much on such surfaces.

01:54:49These public toilets' cubicles don't look private for a reason.

01:54:53Huge gaps at the bottom were created to make you want to get out of there as soon as possible.

01:54:58Thanks to this design, there are almost no cubes.

01:55:02You can use a plastic lid from soda cups as a coaster.

01:55:06It has the perfect shape to hold your drink and keep a table surface from getting wet.

01:55:11Don't turn the lid upside down.

01:55:13Just put it on the table the same way it was on the cup.

01:55:16If you're stuck in a car during an accident and can't open the doors, you can use bars

01:55:21from the detachable headrest to break the window and get out.

01:55:26Remember those small plastic discs under the bottle lids?

01:55:30This little thing helps preserve vacuum inside bottles, keeping soda in a fizzy state.

01:55:36You've probably watched food heating in a microwave at least once in your life.

01:55:40Exciting, I know!

01:55:42But why do the developers make the doors so dark?

01:55:45This black film is necessary to block electromagnetic fields.

01:55:50Tiny dots on padlocks next to the keyhole are designed to dry out the moisture if water

01:55:56gets inside the lock.

01:55:57Also, if the lock gets jammed or starts to rust, you can pour oil into it through this

01:56:02hole to fix the problem.

01:56:05A golf ball is covered with tiny craters for good aerodynamics.

01:56:09They're called dimples, and this design helps the ball fly further and more evenly.

01:56:16Some mugs have a little groove at the outside of the bottom.

01:56:19It helps water flow out and prevents it from accumulating when the cup is in the dishwasher.

01:56:26Sunglasses were first used not to protect your eyes from the sun.

01:56:29They use such glasses during Arctic expeditions.

01:56:32A huge amount of snow can blind you just like a bright flash.

01:56:36To save their eyes, they came up with these unique glasses.

01:56:40You can use any T-shirt not only for dressing but also as a protective layer for your luggage.

01:56:46Just put your clothes on your suitcase as a cover and don't waste time plastic wrapping

01:56:51it.

01:56:52A button on the back of the shirt collar is there to keep your tie under the collar.

01:56:56Yes, people don't use it as intended because all ties are thinner now, but this button

01:57:02is still there as a decorative function.

01:57:05And here's the initial purpose of a tie.

01:57:08They created it in 17th-century Europe to tighten the collar.

01:57:12This way, people protected their necks from a strong wind.

01:57:16Then they got used to this part of the outfit and made it a must-have accessory for royal

01:57:21gatherings.

01:57:22Soft pom-poms on hats were first invented several centuries ago.

01:57:27Sailors used them to avoid hitting their heads against low ship ceilings and ledges.

01:57:32They make most clothes hangers from cedar wood since it contains many natural oils repelling

01:57:37moths that love to eat your clothes.

01:57:41A light bulb is spherical because such a shape allows the light to distribute evenly.

01:57:46Also, such light bulbs are cheaper and easier to produce.

01:57:50Ever found these pieces of fabric in new clothes?

01:57:54They're not just patches, but also testing subjects to use before washing.

01:57:59You can put this piece in the washing machine and see what happens to it.

01:58:03If everything is fine, then you can safely put your clothes in.

01:58:07Your ceiling fan has two modes of work – winter and summer.

01:58:11You need to find the switch on it.

01:58:13Push it up to activate the winter mode and down for the summer one.

01:58:17In summer mode, the fan pushes the air down.

01:58:21It pulls the air up in winter.

01:58:24Most people have this ground plunger in the bathroom.

01:58:27In movies, they use those to eliminate a blockage in the toilet.

01:58:31In fact, the plunger is to get rid of a blockage in the sink.

01:58:35For the toilet, you need another special device.

01:58:38The extra space under your oven is not for keeping pans and pots.

01:58:43You can put some dishes there.

01:58:45The heat of the stove will keep your meals warm.

01:58:47It's useful if you're waiting for friends late for dinner.

01:58:52You're taking a pack of popcorn out of a microwave after heating.

01:58:56See the little hole at the top of the popcorn bag?

01:59:00You can use it to get rid of small unpopped grains.

01:59:03Shake the pack over the plate, and all the grains will fall out through the hole.

01:59:08Almost all people use a travel pillow incorrectly.

01:59:12Usually, they put two ends forward and lay their heads back.

01:59:15Try to turn the pillow on the other side.

01:59:18The arc should be under your chin, and the two ends should be directed back.

01:59:22Lay your head forward, and your neck will feel way more comfortable in this position.

01:59:27And you'll get a good nap.

01:59:30They create magnets in a horseshoe shape to increase their magnetic power.

01:59:35The blue part indicates the south pole, the red part the north one.

01:59:39The two poles work simultaneously and increase the attraction.

01:59:43Thanks to the perfect aviation design, most planes can fly a long distance even without

01:59:49an engine.

01:59:51In 1268, Roger Bacon made the first written mention on using telescope lenses for optical

01:59:57purposes.

01:59:59Magnifying lenses inserted in frames were popular for reading both in Europe and China

02:00:03at this time.

02:00:04So it's still a question if the West took it from the East, or vice versa.

02:00:10If you find yourself in the middle of the sea without food, sorry, you can try fishing.

02:00:16You can use anything for bait – your phone, watch, keys.

02:00:20And you can use laces as a fishing line.

02:00:22Tie the bait and throw it into the water.

02:00:25And good luck catching the fish that swallowed your phone – it's going to be a whopper!

02:00:30You can turn over the tab on a lid of soda cans and use it to hold a cocktail straw in

02:00:36place.

02:00:37The blue half of the eraser wasn't originally created to delete the ink.

02:00:41Initially, the blue part erased inscriptions and drawings on thick paper.

02:00:45The red part couldn't do it without leaving streets.

02:00:48But the blue one handled this task perfectly.

02:00:52Most of us tear sticking notes off incorrectly.

02:00:56Try not to do it from below, but from the side along the licking law.

02:01:00The paper will stick to the wall for longer this way.

02:01:04Ever wondered what these two holes in the lollipop stick are for?

02:01:08All the time, you say.

02:01:10Well, when they put the bar in hot syrup, the liquid flows inside.

02:01:15It creates a solid attachment for the plastic.

02:01:18And so it goes.

02:01:23Most metallic zippers have a hidden lock inside them to save them from awkward situations

02:01:27such as an undone fly.

02:01:30Leave the zipper handle in an upward position.

02:01:32When you pull it downwards, it automatically locks.

02:01:35It's all thanks to those tiny grooves hidden underneath the handle.

02:01:40Bath foam isn't only for fun or a nice smell.

02:01:42It also helps regulate the temperature.

02:01:44The bubbles keep the water hot, so you can enjoy a bath a bit longer.

02:01:48Anyway, it works for acrylic bathtubs only.

02:01:51Those made of metal lose heat really fast either way.

02:01:55Escalator brushes aren't for keeping your shoes clean and polished.

02:01:59It might be tough to apply wax right on that brush while the escalator's moving.

02:02:03It's for our safety.

02:02:05Brushes won't let you come close to the edge, so a long coat or boot-cut jeans won't end

02:02:09up in between the steps.

02:02:11Originally, golf balls were smooth.

02:02:14They have a dimpled surface now because players noticed that overused balls with damages flew

02:02:19better than brand new ones.

02:02:21At some point, manufacturers started producing balls with dimples.

02:02:27If you take a box of aluminum foil, you'll see tabs you can press on the side.

02:02:31They keep the foil straight and prevent it from rolling.

02:02:34It's also easier to tear off some amount of foil thanks to those tabs.

02:02:39Jerry cans have three handles for a reason.

02:02:42It's a smart designer move, so when you carry it alone, you use only the central handle

02:02:46to distribute the weight evenly.

02:02:48But your friend wants to help you out.

02:02:50Each of you grabs the side handle.

02:02:52Two flat prongs you can see on standard plugs used in North and Central America make sense.

02:02:58But how about those holes near the tips?

02:03:00Thanks to them, the outlet firmly grips the plug so that it won't loosen or fall out of

02:03:04the socket.

02:03:05It's sometimes irritating when you haven't used the entire stick of deodorant.

02:03:10There's a little bit more left, but it's hard to reach it.

02:03:13Okay, the trick is easy.

02:03:15Unscrew the bottom, take a pencil, and force it underneath that moving platform.

02:03:20That way, you'll push what's left of the deodorant out.

02:03:24There's a number put on the side of many cosmetic products.

02:03:27It isn't picked randomly.

02:03:28It tells you how long your product will last after you've opened it.

02:03:32This is why it has an open jar for a graphic symbol.

02:03:35A lint roller is good at removing those tiny fibers, but you can also use it to clean other

02:03:40stuff.

02:03:41For example, when you want to remove the dirt from the utensil tray in your dishwasher,

02:03:45simply take your sticky lint roller and put it into each compartment, and all the crumbs,

02:03:49dirt, and leftovers are all gone.

02:03:53Kings depicted on playing cards are real historical characters.

02:03:56Spades, King David.

02:03:58Clubs, Alexander the Great.

02:04:00Hearts, Charles the Great.

02:04:02Diamonds, Julius Caesar.

02:04:06Rings used to be more than a stylish accessory.

02:04:08The nobility used rings as a seal.

02:04:11Archers wore rings to protect their fingers from bowstring injuries, while needlewomen

02:04:16from needle pricks.

02:04:18Detachable headrests in cars are all about safety.

02:04:21If you pull it out of a seat, you'll see two pretty sturdy bars.

02:04:25If you ever get locked or trapped in a car, you can get out of there smashing the window

02:04:29with these bars.

02:04:31A little arrow next to the refueling indicator on the car's dashboard indicates which side

02:04:36of the vehicle has fuel tank openings.

02:04:39It's useful when you need to refuel a rented car.

02:04:42You are probably using shampoo wrong all the time.

02:04:45Well, the main thing you should know is that you don't apply it directly on your hair.

02:04:49You gotta apply it onto the roots only.

02:04:52The foam that you make is enough to clean your hair.

02:04:55A button on the reverse side of a shirt collar is needed to hold a tie in place.

02:04:59Anyway, this button was designed for slim ties that are not that popular today, so this

02:05:04button is only an element of design.

02:05:07A cotton pads pack has those strings on it to hang it on some hook or holder.

02:05:12There's no need to untighten and tighten the pack again.

02:05:15Look at the bottom.

02:05:16It has a perforated line.

02:05:18Tear along it and just pull out a cotton pad from a hanging pad.

02:05:22It's a myth that the red side of the eraser is for pencil and the blue one is for ink.

02:05:27The blue gets rid of mistakes on thicker types of paper only.

02:05:31It works both for pencil and even ink, but make sure the paper is really thick.

02:05:35But that blue little thing can do so much more.

02:05:38It can polish your jewelry, clean your electronics.

02:05:41For example, the screen of your cell phone.

02:05:43You know those irritating sticker residues that won't peel off?

02:05:47Eraser helps there too.

02:05:48Same as with cleaning scuffed up suede or dirt you have on your walls.

02:05:52There's no need to tear one of its edges on stick sachets.

02:05:55The right way is to tear them down the middle.

02:05:57You say it's not a big difference, but at least there's less mess with those torn paper

02:06:01bits.

02:06:02A small V patch at the bottom of the collar helps put on the sweater without losing any

02:06:07shape over time because it's made of a double layer of webbing material, just like waistbands

02:06:12and cuffs.

02:06:14To avoid spilling juice right onto your t-shirt, try pouring it from the other side of the

02:06:18carton.

02:06:19This way, it sloshes less and it's easier to control.

02:06:23To enjoy fresh and soft peanut butter, store it upside down.

02:06:27This way, the oils won't stay on the bottom all the time and distribute evenly in the

02:06:31jar.

02:06:32Yeah, you've heard before that a drawer beneath your oven is there for keeping the food warm

02:06:37if the guests are running late.

02:06:38Hey, you can also slow cook on lower temperatures in that drawer.

02:06:43Automatic lip liners and eye pencils sometimes have a sharpener installed in the package.

02:06:49The lid on the back part of the pencil doesn't only reveal the color.

02:06:52You can pull it out and sharpen up the product.

02:06:56Grocery cart loops help organize all the stuff in your cart better so you can enjoy your

02:07:00supermarket trip.

02:07:01You don't want to put your brand new fancy white jacket in a cart next to carrots and

02:07:05onions, huh?

02:07:07Fruit stickers know everything about your apple's past.

02:07:10A five-digit number where the first number is nine is a good sign.

02:07:14It's an organic product.

02:07:16A four-digit number starting with a three or four means it was conventionally farmed.

02:07:22If the number starts with an eight and there are five digits, it's best to leave it on

02:07:25the shelf.

02:07:27Metal buttons on jeans, also known as rivets, help make the pockets more durable when miners

02:07:32would fill them with heavy tools.

02:07:34They're still helpful today, even if you don't store anything heavy in your pockets.

02:07:38Rivets strengthen the seams and make your jeans last longer.

02:07:42All Tic Tac containers are designed to dispense one Tic Tac every time you open it.

02:07:47The lid has the same shape as the candy.

02:07:50Turn the container upside down, gently shake it, and slowly open it.

02:07:54You'll notice only one candy stuck between those lid grooves.

02:07:57So if you just open the container and shake it until five or even more candies fall into

02:08:02your mouth, it means you've been eating Tic Tacs wrong all this time!

02:08:09Next time you're getting ready for work, take a closer look at your go-to shirt.

02:08:13Every buttonhole is stitched vertically, but check out the very last hole.

02:08:18It's stitched horizontally, right?

02:08:20This is because the bottom part of your shirt endures the most stress from pulling, as it's

02:08:24where your hips are.

02:08:26So that horizontal buttonhole isn't a mistake – it's put there to stop your shirt ripping

02:08:31as your hips move.

02:08:33That layer of bubbles that forms when you add bubble bath to your tub isn't just for

02:08:36fun.

02:08:37The bubbly layer also acts as insulation and keeps your bath warmer for longer.

02:08:43The pom-pom on top of your beanie wasn't put there as a fashion accessory.

02:08:47The pom-pom was originally added to the hat to prevent sailors banging their heads on

02:08:51the ceilings of the ships that were too low.

02:08:55Crackers have holes in them to stop them cracking and breaking during baking.

02:08:59If the holes weren't there, steam would build up inside the cracker and make it collapse.

02:09:05Those numbers on stickers they put on oranges aren't random.

02:09:08If there are four digits, and the first is 3 or 4, this means the fruit has been made

02:09:13with conventional farming techniques.

02:09:16Five numbers beginning with an 8 means the fruit has been genetically modified.

02:09:21Five numbers beginning with a 9 means the fruit is organic.

02:09:25Margins on paper aren't for writing in dates and numbering lists.

02:09:29They were originally added to serve a protective function.

02:09:32Back in the day, rats used to be a pesky problem in people's homes, and paper was one of their

02:09:37favorite snacks.

02:09:39Margins were added as a safeguard so that the rats would nibble on blank paper rather

02:09:43than taking a bite out of your important work.

02:09:47If you put your Chinese take-out on a plate when it arrives, you're doing more work than

02:09:51you should.

02:09:52Much like the paper condiment pots in fast-food restaurants, your cardboard Chinese take-out

02:09:57box can be unfolded to create the perfect-sized plate for your food.

02:10:02The long neck on your soda bottle is designed like that to encourage you to hold it there.

02:10:07That way, the heat from your hand will only warm that top bit of the bottle instead of

02:10:12heating up your whole drink.

02:10:15Why does a lapel have a buttonhole with no matching button?

02:10:19Originally, coats and jackets did have a corresponding button so that the wearer could turn up the

02:10:24collar and fasten it around the neck to keep warm.

02:10:27Over time, people stopped doing this, and the button was removed, but many suitmakers

02:10:31still keep the non-functioning traditional buttonhole.

02:10:35It's always hard to see your food in the microwave because of that pesky black grate

02:10:39on the window, but it's there to stop harmful microwaves escaping.

02:10:44Called the Faraday shield, it protects you as well as ensures that your food cooks properly.

02:10:50That random diamond on your backpack is called a lash tab or pig snout.

02:10:55It's there so you can thread cords through the holes to carry extra gear, perfect for

02:10:59camping or long hikes.

02:11:02Golf balls are covered in dimples, rather than being perfectly round, so that the ball

02:11:06can fly through the air more smoothly, decreasing the drag and allowing it to travel further

02:11:11and faster.

02:11:13Your makeup pads have two different sides for a reason.

02:11:16The bumpy side is used for applying makeup, while the flat side is for removing it.

02:11:23Donuts have holes so that the inside and outside cook evenly.

02:11:26Before the holes were added, the inside would often be greasy and doughy, while the outside

02:11:31was crisp.

02:11:32Your Apple laptop charger has tiny legs that can be folded out, and they're not there

02:11:37so your charger can stand up.

02:11:39These legs, when unfolded, allow you to wrap the cable around and then clamp it into place,

02:11:45securing it and preventing the cable getting tangled or damaged.

02:11:49Take a look at a soda bottle, and you'll notice a disc inside the bottle cap.

02:11:54This helps seal in the liquid and the drink's fizz, stopping it from going flat.

02:11:59That hole in your hollow lollipop stick isn't to prevent choking, should it ever be swallowed.

02:12:04It's actually there to keep the candy in place.

02:12:07Excess candy flows into the hollow tube, and the hole, which, when it hardens, keeps the

02:12:12pop in place.

02:12:14If it was a smooth stick, the candy would slide off easily.

02:12:19A zipper on leather biker jackets is often sewn diagonally.

02:12:22It's not just a fashion statement.

02:12:24Zips that are stitched vertically can bunch up if the wearer leans forward, but a diagonal

02:12:29zipper won't.

02:12:31That little triangle on your gas gauge is there to let you know which side of the car

02:12:35your gas cap is on.

02:12:37Now you'll never pull up to the wrong side of the pump in a rental car again!

02:12:42Vacuums come with so many attachments, but do any of us really know what that one with

02:12:47long bristles is for?

02:12:49It's for dusting and is perfect for cleaning framed art, blinds, and lampshades.

02:12:55Those tiny holes in the chocolate box tray actually serve a function.

02:12:59Push the hole near the candy, and it'll pop straight out without you having to get

02:13:03your hands dirty.

02:13:04How thoughtful!

02:13:06Some skyscrapers have hollow floors that can contain nothing but an elevator.

02:13:10It's actually a way to get around height limits.

02:13:13Some skyscrapers are given a limit to the number of floors they can have.

02:13:17Because the hollow floors are empty, they add to the height of the building and make

02:13:21it look more impressive without increasing the number of floors and breaking the building

02:13:25contract.

02:13:26These hollow floors also help to prevent the spread of fires.

02:13:31Women's shirt buttons are traditionally on the left for a reason.

02:13:35Back in the day, it was a sign of wealth as it signified that a chambermaid had dressed

02:13:40you, as having the buttons on the left made it easier for them to do up the shirt.

02:13:45Your cuticles serve a purpose, so think before you get rid of them.

02:13:49The small area of skin is there to protect your nails from infection.

02:13:53Without it, bacteria and fungi can get in.

02:13:55What's the difference between a wooden hanger and a plastic one?

02:14:01Aside from helping keep your clothes in shape, cedar wood hangers also repel moths and bugs.

02:14:07If you look closely at an elevator door, you'll notice a tiny hole.

02:14:12This is actually a keyhole used for emergencies or for routine maintenance checks.

02:14:17Those random buttons dotted across your jeans are called rivets and are placed in the weakest

02:14:22spots of the jeans to protect them from ripping due to strain or movement.

02:14:28The Statue of Liberty's crown has 7 points for a reason.

02:14:31They represent the 7 seas and 7 continents and were added so that she could extend her

02:14:37freedom to everyone on Earth.

02:14:39Suitcases often come with 2 zippers so that you can connect them with a padlock to prevent

02:14:44theft.

02:14:46Salt isn't just used for cooking.

02:14:48It can get rid of tough smells.

02:14:49Rubbing salt on your fingertips after chopping garlic should remove the smell.

02:14:54It also works on shoes.

02:14:56If you're in a hurry to get somewhere, but your phone is low on charge, switch it to

02:15:00airplane mode while it's plugged in.

02:15:03It'll charge much faster.

02:15:06American shirts have a loop on the back so that they can be hung on a hook in a dressing

02:15:10room or a locker room without creasing.

02:15:13Vaseline has a hidden purpose.

02:15:15It's great for removing scuffs from patent leather shoes.

02:15:18It'll also shine them.

02:15:21Trunks have an emergency latch if you ever accidentally lock yourself in.

02:15:25Like I do.

02:15:26Don't ask me why.

02:15:27If you fumble around to locate it, all you have to do is pull on it and the trunk should

02:15:31open.

02:15:34Coasters have a secret slide in the bottom that can be removed so you can clean out all

02:15:38those annoying breadcrumbs.

02:15:41Take a look at your laptop keyboard.

02:15:43There are bumps on the F and J keys, but nowhere else.

02:15:47When your fingers are in the optimal typing position, your index finger should rest on

02:15:51these two keys.

02:15:52The bumps have been added so that you can correctly position your hands for typing without

02:15:56looking at your keyboard.

02:15:58If you happen to be missing your index fingers, perhaps from feeding sharks a little too closely,

02:16:04then you're out of luck.

02:16:08There's nothing better than a nice piece of buttered toast for breakfast, if we're

02:16:12not counting hot fudge sundaes.

02:16:14But if you find it harder to spread out cold butter over your toast, here's an idea.

02:16:19Use a cheese grater.

02:16:21Figure out the amount you need and grate the product.

02:16:24The process will also soften the butter, making it easier to spread, and you won't have

02:16:28to melt a too large amount of it in the process.

02:16:31But still, that hot fudge!

02:16:34Dried pasta comes in all sorts of different shapes and sizes for a reason.

02:16:39That's because each type of pasta goes best with a particular sauce.

02:16:44Pasta shells, for example, are perfect with denser and chunkier sauces.

02:16:48Why?

02:16:49Because the sauce gets inside the shells, making it easier to serve and eat the dish.

02:16:54The ribbed outer surface also helps with covering the shells in the sauce.

02:17:00If you ever end up burning your cookies, you can save them with your trusty grater

02:17:05too.

02:17:06Just grate off the blackened parts after carefully taking the cookies from the baking tray.

02:17:11But be careful and wait until the cookies have cooled down.

02:17:14Also, if you ruin their shape a bit, you can always dip them in some melted chocolate.

02:17:20After the chocolate cools down, you'll have perfectly shaped cookies.

02:17:24Although, after it gets past your lips and beyond, does the shape of the cookie actually

02:17:29matter?

02:17:30Just sayin'.

02:17:33If you like adding a lot of ingredients to your sandwiches, but don't really appreciate

02:17:37it when the bread gets soggy, there is a way to reduce the amount of moisture.

02:17:41Pick your sliced tomatoes or cucumbers and place them between two paper towels for up

02:17:46to 5 minutes.

02:17:48After that, you can use them.

02:17:50Also, make sure to spread butter, cheese, or sauces, like mayo or ketchup, onto the

02:17:55bread first.

02:17:56This will help you seal the bread and keep moisture at bay.

02:18:01Some people think that the little white string that you find near an egg yolk needs to be

02:18:06removed before you cook the egg.

02:18:08Well, I'm here to tell you that these strands are called chalaza and you don't actually

02:18:12need to get rid of them.

02:18:13They help keep the yolk in place at the egg's center.

02:18:17A chalaza is not going to mess up the consistency or the taste of your food, so removing it

02:18:22is completely up to you.

02:18:25Ever notice that most juice boxes come with two flaps, one on each side?

02:18:29Those are actually handles.

02:18:32Manufacturers design the boxes this way to make it easier for us to hold them.

02:18:36This way, we don't end up squeezing the box, making the juice spill out.

02:18:42You don't need to be a baking pro to know that you can use both white and brown sugar

02:18:47in your recipes.

02:18:48But have you ever wondered what the difference between these two is?

02:18:52It turns out that the only thing that sets them apart is that, during production, a small

02:18:57amount of molasses is added to the brown sugar.

02:19:01Molasses is basically a sort of syrup you get when processing sugarcane.

02:19:06It's usually removed during the refining process.

02:19:09That's how white sugar is produced.

02:19:11But if some amount of molasses remains in the final product, we end up with brown sugar,

02:19:16with its specific taste and darker hue.

02:19:19It's a good thing.

02:19:22There are a lot of things you can put in your dishwasher, apart from your dishes.

02:19:26For example, you can clean such things as your silicone oven mitts or the knobs of some

02:19:31kitchen appliances, like your oven or stove.

02:19:35Some kitchen sponges and reusable towels may be safe to clean in the dishwasher as well.

02:19:40Speaking of kitchen cleaning products, there are a lot of things you can do with dish soap,

02:19:45like de-griming your patio furniture.

02:19:48Just add a bit of dish detergent to some warm water and use the solution to wipe down

02:19:53your outdoor furniture with a piece of cloth.

02:19:55Finally, rinse it clean using your garden hose.

02:19:59You can also use dish soap to get rid of greasy stains on your clothes.

02:20:03Be it pasta sauce or salad dressings.

02:20:06Hey, sometimes we miss our mouths!

02:20:08So just apply a little dish detergent to the stain and then rinse with water.

02:20:13Use non-colored soap for lighter clothes.

02:20:16For more difficult stains, let the dish soap sink in for a bit, then throw the piece of

02:20:20clothing in the washer as usual.

02:20:22And think about maybe getting a bib.

02:20:25If none of the methods have helped you organize your closet, and you're still overwhelmed

02:20:30with large piles of clothes, there's a simple way that might be effective.

02:20:34It's called the one-in-one-out rule.

02:20:38That means for every new piece of clothing you buy, you need to get rid of one you already

02:20:43have.

02:20:44This means you'll always be decluttering your space.

02:20:47To make it easier to find something in your closet, good luck!

02:20:51Keep your most-used items at eye level.

02:20:53This way, they'll be easier to find and pull out when you're in a hurry.

02:20:57Those items that you tend to use less often, like your evening clothes, for example, can

02:21:02stay on the shelves above or below your eye level.

02:21:06You can make good use of old spice tins.

02:21:09If you glue some powerful magnets to the inside of the tins, they can double as magnetic shelves.

02:21:15You can use them for all sorts of everyday items, like kitchen pliers, ice cream scoops,

02:21:21or even cutlery.

02:21:22You can also place them on any metallic surface, like your refrigerator door.

02:21:27They'll blend in nicely with your kitchen magnets.

02:21:30Hidden in your laundry room, there's a great tool for picking up pet hair.

02:21:34It sometimes works better than lint rollers.

02:21:37Take a dryer sheet and, using some elbow grease, you'll get rid of that dog or cat hair in

02:21:42no time!

02:21:44It works on all sorts of surfaces, but it's especially effective for upholstered furniture.

02:21:50If you don't like it when a door starts squeaking whenever you enter a room, get a

02:21:54bar of soap and rub it straight on the hinges.

02:21:58This will only help for a while, though, but it'll do the trick until you manage to get

02:22:02to a hardware store.

02:22:03And, you know, buy some oil.

02:22:06Have you ever noticed that, in some elevators, there's a star next to the number of a specific

02:22:12floor?

02:22:13No, it's not to indicate where my office is.

02:22:16It's there to point out where the nearest exit is.

02:22:19And it's not always on the first floor.

02:22:21It's most likely located on the floor closest to the street.

02:22:26Have you ever wondered why stop signs are red?

02:22:29Back in the day, they didn't actually have any particular color at all.

02:22:33Before the 1920s, they didn't even have a standardized shade.

02:22:38In 1922, though, someone came up with the octagon.

02:22:41But initially, it was painted yellow.

02:22:44All because the red coloring tended to fade out too quickly because of sun exposure.

02:22:49So yellow turned out to be the best option.

02:22:52It took another 30 years for fade-resistant enamel paint to be invented.

02:22:56We ended up changing the color of the stop sign back to red.

02:23:00After all, it's still the best color if you want something to be easily noticeable.

02:23:06Do you know there's a type of rose that can grow taller than people?

02:23:10According to the Guinness Book of World Records, the tallest rosebush ever found grew in Vienna,

02:23:16Austria.

02:23:17It was a staggering 28.5 feet tall.

02:23:20Yes, it arose to a great height.

02:23:23In the same way we all have unique patterns on our fingerprints, no two tigers have the

02:23:28same set of stripes.

02:23:30It makes it easier for people working with this feline species to distinguish one tiger

02:23:35from another.

02:23:36I'll bet you didn't know the White House has its own flower shop hidden in the basement

02:23:40of the building.

02:23:41It's supposed to provide flower arrangements for all sorts of events that take place there.

02:23:47It's probably no surprise that pizza has become an American staple dish despite its

02:23:53Italian origin.

02:23:54People in the U.S. love it so much that they buy 350 slices of pizza every second in the

02:24:01States.

02:24:02Man, I'm not getting my fair share.

02:24:05To manage the huge demand for this delicious dish, around 17% of all restaurants in the

02:24:10U.S. are pizzerias.

02:24:12Finally, there's a way to make lemon juice without the seeds getting into your beverage.

02:24:18Try cutting the fruit in two and squeezing it with a pair of kitchen tongs.

02:24:22The pointed end of the lemon should be facing down.

02:24:25The juice will flow down, but the seeds will remain inside the lemon.

02:24:30Ooh, lemony!

02:24:31It goes well with pizza.

02:24:36Have you ever stopped to think about the thrilling secrets of day-to-day modern life on planet

02:24:41Earth?

02:24:42I'm talking about tiny windows and washing machines, and little holes in airplane windows.

02:24:48If you haven't got a clue of what I'm talking about, tag along and allow yourself to be

02:24:53as surprised as I was when I found out.

02:24:58Remember the drawer at the bottom of your oven?

02:25:01Maybe you've been ignoring it all along, or using it to store pots and pans.

02:25:05Well, even though it can serve this function, that's not the only thing it's there for.

02:25:11The best way to use the bottom drawer is to keep your meal heated while you're waiting

02:25:15to serve it.

02:25:16Genius, right?

02:25:19Talking about secret doors, have you noticed that most washing machines have little flap

02:25:24doors at the bottom too?

02:25:26These doors actually serve as drain traps.

02:25:29It's where all the items that we put to wash together with our jeans and jackets go to.

02:25:34It's a type of collector, let's say, of small items.

02:25:38It stops them from getting into the main drain pipes and clogging them.

02:25:42It saves us hundreds of dollars in repairs each month.

02:25:47Now, who hasn't gone through the confusing task of having to measure how much pasta to

02:25:52cook for one serving?

02:25:54Well, here's the solution – the holes in the center of pasta spoons.

02:25:59They were actually made for measuring the exact amount of dry pasta you need for one

02:26:04serving.

02:26:05If you try stuffing wet cooked pasta through it, well, good luck with that.

02:26:12On a similar topic, have you ever wondered why pen caps have holes in them?

02:26:17Maybe you thought it was a design feature to regulate air pressure.

02:26:21But in reality, these holes have a much simpler and more important function – to reduce

02:26:25the risk of choking.

02:26:28Lots of people love to bite on their caps, and this tiny hole prevents them from choking

02:26:34in case they accidentally swallow a cap and it gets stuck in their throat.

02:26:38For kitchen lovers, there's a hidden secret right in front of your eyes that can change

02:26:43your life.

02:26:45Think pans, now think handles.

02:26:47Right, they have holes in them!

02:26:50As it turns out, these holes were designed to hold the spoon you're using for cooking.

02:26:55And instead of dripping sauce all over the stove or your kitchen floor, you can place

02:27:00the spoon in the hole and let it drip the sauce directly back into the pan.

02:27:07Speaking of everyday items, and I was, most doorknobs are made of brass because this material

02:27:14makes them naturally germ-free.

02:27:17Unlike plastic ones, brass doorknobs are kind of magical.

02:27:21They can disinfect themselves without you having to clean them.

02:27:25Neat, right?

02:27:27Have you ever noticed that at the bottom of a measuring tape, there is a little dip?

02:27:32You can find it in that metallic part you need to pull on to measure something.

02:27:37Well, that dip is actually the exact size of a regular nail.

02:27:42It was designed for people to place the tape on top of a nail and use it as a support while

02:27:47they stretch the tape.

02:27:48Well, I can't wait to try it out for myself!

02:27:52As for the margins in your notebook, they were invented to protect people's notes

02:27:57from mice.

02:27:59No, the mice weren't copying your answers for the math quiz.

02:28:03Actually, there were times when people had to cohabitate with rats and mice that often

02:28:09chewed on paper.

02:28:10So to prevent information from getting completely lost, people created margins.

02:28:16This way, texts were moved closer to the middle of pages and remained unharmed by rodents.

02:28:23Hmm, perhaps this is where to-digest information came from.

02:28:29And what about those tiny holes at the bottom of airplane windows?

02:28:34They have an extremely important function of regulating the air pressure inside the

02:28:38cabin.

02:28:40In other words, they help planes fly high up in the sky.

02:28:44Big responsibility, right?

02:28:46By the way, tray tables on an airplane are the germiest places inside the entire cabin.

02:28:53Studies showed that the trays had 8 times the amount of germs on the toilet flush button.

02:29:00Now how about we cut a commercial airplane in half and see what's inside?

02:29:06Well, it would look more or less like this.

02:29:09Rows of seats on top and everything else that needs to be stored at the bottom.

02:29:13I'm talking about passengers' luggage, emergency supplies, parts of the wing system,

02:29:19and so on.

02:29:22Moving on to bowling balls!

02:29:23Yes, I know it's a clumsy transition.

02:29:27Anyway, have you ever wondered what the insides of a bowling ball look like?

02:29:32If you have cut a professional ball in two, you'll see a familiar shape.

02:29:37Look closely.

02:29:38Do you see it?

02:29:39Doesn't that look like the logo of Brightside?

02:29:42Anyway, professional bowling balls are different from the ones in your local bowling alley.

02:29:47That's because they're designed to make fancy moves.

02:29:51They actually have some really complex engineering inside.

02:29:54They're shaped to help skilled professionals get more strikes.

02:29:58The weight of professional bowling balls is designed to be projected inward as they

02:30:02travel down the bowling lane.

02:30:05This makes it harder for them to get into the gutters on the sides of the lane.

02:30:10Speaking of balls, let's take a look inside a baseball.

02:30:14To make it light and aerodynamic, producers use several different layers.

02:30:20Starting from the core, we have a cork center enveloped by black rubber.

02:30:25Then there's a layer of red rubber, followed by 2 or 3 alternating layers of wool yarn.

02:30:31After that, there's a visible white leather cover and that beautiful red seam on the side,

02:30:37stitching it all together.

02:30:39And what if you had X-ray vision and managed to look inside a human bone?

02:30:45Ooh, spooky!

02:30:46I'd say what calls most attention is this spiderweb-like situation at the center of

02:30:52the ball.

02:30:53In reality, it's a highly condensed and complex structure of nerves that you have

02:30:58inside your bones.

02:31:00Aren't you lucky?

02:31:02Now I've got a riddle for you.

02:31:04What is round, can be found near the ocean, and looks like an aerial view of the Guggenheim

02:31:09Museum in New York City.

02:31:12The one that's made almost entirely of ramps.

02:31:15If you said a nautilus shell, then you guessed right!

02:31:19A nautilus is a shellfish whose house you can find in countless souvenir stores near

02:31:24the beach.

02:31:25It's made up of two layers – a matte white outer layer and an iridescent white inner

02:31:31layer.

02:31:32And if you were to cut it in half, it would look very similar to the insides of the Guggenheim

02:31:37Museum.

02:31:39Aloe leaves are good for healing purposes and also for hydration.

02:31:44If you managed to look inside of an aloe leaf, the image you'd see would be satisfying

02:31:50and very relaxing.

02:31:52Who hasn't dreamed of a pool filled with jelly?

02:31:57There seems to be nothing more mundane and regular than a tube of toothpaste.

02:32:02But you wouldn't think so if you cut open a tube that contains several colors.

02:32:07There have been speculations that the insides of such a toothpaste tube might be divided

02:32:12by barriers so that the stripes don't mix.

02:32:16But if you cut it in half, you'll see that it has only one interior chamber.

02:32:22As it happens, there's a lot of science behind the making of striped toothpaste.

02:32:27According to a specialist, they have to ensure that the paste in all the stripes has the

02:32:32same physical properties.

02:32:34This way, the colors are naturally prevented from mixing with one another.

02:32:38That's why if you tear a tube open, you'll see something that looks like several slices

02:32:42of pizza in different colors.

02:32:46If you open your closet, you're bound to find at least a few wooden hangers.

02:32:51Usually they're made of cedar wood, which is a natural moth repellent.

02:32:56So cedar hangers actually protect your clothes from moth infestation.

02:33:01For some people, more than others, eyeliner is an everyday must.

02:33:05Boy, isn't it?

02:33:07Did you know that back in ancient Egyptian times, both men and women used kohl eyeliners

02:33:14to protect their eyes from the sun's glare?

02:33:16Way to go for the Egyptians for figuring that out!

02:33:20Now if I could just learn to walk like one…

02:33:23Normally, we use headrests for the purpose of, well, resting our heads, right?

02:33:30Well, not only.

02:33:32As it turns out, headrests can be easily removed from the seats and used to break car windows

02:33:38in case of emergencies.

02:33:41Now this one is a trick very few people know about.

02:33:44You probably place your doormat horizontally, like most of us do.

02:33:49But doormats serve the purpose of absorbing dirt from the soles of your shoes before you

02:33:54enter your home.

02:33:55So for this function to work as it's meant to, the best way to place a doormat is vertically.

02:34:02This way, you take more steps on the top of the doormat before entering your house.

02:34:08And last but not least, now I don't want to be accusatory here, but you have probably

02:34:14been vacuuming your house the wrong way, and I can prove it.

02:34:19Most people just vacuum floors and carpets in one direction or move the brush back and

02:34:23forth several times, thinking they've got all the dust out.

02:34:28But according to cleaning professionals, the best way to vacuum is in rows.

02:34:33First you go forward with the brush until you arrive at the end of the row.

02:34:37Then you fluff the carpet up and move back down along the same row, gathering the dust

02:34:43that wasn't collected in the first sweep.

02:34:45Talk about efficient cleaning!

02:34:47On the other hand, my idea of housecleaning is to sweep the room with a glance.

02:34:53Hey, I don't want to disturb that protective layer of dust.

02:34:59Many airports have carpets at their gate areas.

02:35:02This nicety usually comes with a few other perks.

02:35:05Lower ceilings, comfortable seats, and pleasant natural lighting.

02:35:09All this costs more for airports, and carpets are not so easy to clean as hard floors are.

02:35:16But they create a cozy feeling for passengers waiting for their flight, making them more

02:35:20relaxed.

02:35:21Still, it isn't a gesture of goodwill on the part of airports.

02:35:25According to social research, calm passengers are about 7-10% more likely to go window shopping

02:35:31and actually buy something in the lounge area or duty-free zone.

02:35:34So, by investing in the passengers' comfort, airports actually increase their own income.

02:35:40If you ever wanted to know what happened to your baggage while you're on board a plane,

02:35:44the short answer is that airport staff don't actually know once it leaves their territory,

02:35:49and they probably really don't care.

02:35:51Sorry.

02:35:52Baggage is sorted automatically.

02:35:54Scanners scan the barcode and sort the baggage according to its destination.

02:35:58The three main tasks of airport baggage handlers are to move your bags from the check-in area

02:36:03to the gate, to move them from one gate to another when you have a connection, and to

02:36:08move your bags from the plane to the baggage claim area.

02:36:12And that's it.

02:36:13So, if your luggage doesn't move fast enough, it can be late for your connecting flight,

02:36:17or the exact opposite.

02:36:19Your bag gets to your destination before you do because you're stuck at passport control.

02:36:24Another problem can arise if you forget to tear off any old stickers showing a different

02:36:28destination.

02:36:29In this case, the scanner might send your luggage to the wrong country.

02:36:33Most airports are equipped with giant kitchens where the food for passengers is prepared.

02:36:38These kitchens usually cook food for different airlines at once.

02:36:42And since that oh-so-delightful airplane food must be cooked for about 6-10 hours in advance,

02:36:47these kitchens have to work 24-7.

02:36:51And however surprising it might sound, the menu for your flight is developed up to a

02:36:55year in advance.

02:36:57This is a common practice for most airlines because every single ingredient matters and

02:37:01adds to expenses.

02:37:02In fact, one airline managed to save $40,000 after they removed just one olive from every

02:37:09salad they served on their flights.

02:37:12Airport staff sometimes ask passengers to rub their hands on a piece of cloth before

02:37:16putting it into a special machine.

02:37:18It might seem kind of scary, but it's actually harmless.

02:37:22You're simply being checked by a machine called an atomizer.

02:37:26Before their working day starts, employees put samples of dangerous chemicals into the

02:37:30machine.

02:37:31The machine memorizes these smells, and in case a person's hand smells like those chemicals,

02:37:37it alerts airport staff to this danger.

02:37:40You know how it sometimes goes.

02:37:42You come to the security checkpoint, and suddenly, it turns out you have something

02:37:45prohibited to take on board in your carry-on.

02:37:48But don't worry, all the things seized during the pre-flight inspection can be stored at

02:37:52the airport for as long as 3 months.

02:37:55On top of that, you have an opportunity to mail them any address inside the country.

02:38:00Things taken away by security and weren't claimed can also get sold at special auctions

02:38:05and are delivered worldwide.

02:38:07If you have a long layover between flights, going to the nearest hotel to rest might not

02:38:12be the cheapest option.

02:38:14There's a much better trick.

02:38:15Check if the airport or airline sells 24-hour access to the VIP lounge zone.

02:38:21In most cases, you can have free snacks and drinks there, and use free shower cabins and

02:38:25rooms for rest at a very affordable price.

02:38:29In multi-terminal airports, search for underground passageways connecting terminals that most

02:38:34people might not know about.

02:38:36For example, at Frankfurt Airport in Germany, there's a walking tunnel between Terminal

02:38:411 and Terminal 2 that's mostly used by employees since passengers are simply unaware of its

02:38:47existence.

02:38:48There's an actual term for the first 60 minutes after you clear check-in.

02:38:53The golden hour.

02:38:54It's the time that passengers statistically spend more money in retail and duty-free areas

02:38:59of the airport.

02:39:00And having the most comfortable seats in those areas right in front of the shops is a clever

02:39:04trick to lure you in for shopping.

02:39:07Let's admit, sitting in front of a comfy chair while looking at a flashy sign or shopping

02:39:12window can be tempting, and that's exactly what the airports want you to feel.

02:39:17If your flight is overbooked and you can't fly at the designated time, don't hurry to

02:39:21accept the first voucher you're offered as an apology.

02:39:24Normally, airlines keep raising the stakes until they have enough volunteers to give

02:39:28up their flight seats.

02:39:30If they don't and you've been bumped in voluntarily, you can insist on a cash refund instead.

02:39:36Depending on your ticket price and the time of your delay, you might be entitled to as

02:39:40much as $1,300.

02:39:44Most airports have specific experts called profilers.

02:39:48These people practice what's called SPOT, or the Screening Passengers by Observation

02:39:53technique.

02:39:54They carefully analyze facial expressions, gestures, and behavior in order to detect

02:40:00suspicious people.

02:40:02Their job is to notice the non-verbal signs of anxiety, such as people licking their lips,

02:40:07itching, or looking around a lot.

02:40:09If a profiler notices a person acting in a weird or off way, they can invite them for

02:40:14an inspection, where they can talk to a person to find out more about them.

02:40:19Profilers work in both the main halls and in passport control.

02:40:23The typical question they ask is, what's the purpose of your visit?

02:40:27Then they check the person's reaction to this inquiry.

02:40:30No matter how reserved a passenger is, if they have something to hide, TSA officers

02:40:34will find out, thanks to the tiniest cues in people's behavior.

02:40:39Before your luggage even gets on the plane, it goes through five security levels, and

02:40:43one of them, besides scanning the contents, includes being checked by a special dog that

02:40:48can sniff out dangerous chemicals.

02:40:50It's a well-known fact that a dog's nose is much stronger than that of any human.

02:40:55In fact, dogs distinguish smells from 10,000 to 100,000 times better than people do.

02:41:02No wonder airports take advantage of this super sense for security and regularly use

02:41:06these sniffer dogs to detect suspicious substances.

02:41:10What's really cool is that you can't even distinguish a detection dog from its civilian

02:41:15siblings.

02:41:16Unlike police dogs, the ones working at airports aren't trained to frighten or intimidate people.

02:41:21The most popular sniffer breeds are Golden Retrievers, Labs, and German Shorthaired Pointers.

02:41:28Charging your phone at a specifically designated spot can look convenient, but it's not really

02:41:32safe.

02:41:33If the charging station only allows you to plug in your cord, you might get malware installed

02:41:37on your phone with you, none the wiser.

02:41:40The only safe way to charge your phone or tablet is to find an electric socket and use

02:41:45it with your own charger.

02:41:47Same goes for free airport Wi-Fi.

02:41:50Apart from the airports requiring you to authenticate yourself more often than not, someone can

02:41:54easily access your data while you're using an unprotected Wi-Fi hotspot.

02:41:59It's safer to use your mobile data, but if you absolutely have to use the airport's Wi-Fi,

02:42:04best clear or encrypt all your important data on your device.

02:42:09It might be exasperating to take your laptop out of your carry-on at the security check

02:42:13every single time, but the airport staff need to have a clear look at your device to make

02:42:18sure nothing is concealed inside.

02:42:21On the screen of an x-ray scanner, a laptop looks like a semi-transparent object with

02:42:25a clearly visible hard drive, CD drive, and whatnot.

02:42:29But security officers can't see what's behind some of those parts, for example, a dense

02:42:34and rather large battery.

02:42:36People tend to choose the closest security line to them.

02:42:39If that line turns out to be super crowded, just look around after ID and ticket check.

02:42:45You may see another checkpoint with much fewer people.

02:42:48Some checkpoints at the airport are situated at the far edges of the terminal, and that's

02:42:53why passengers fail to notice them.

02:42:55Applying for a TSA pre-check can be a great time-saver for traveling in and out of the

02:43:00U.S.

02:43:01Being a member of this program has some great perks.

02:43:04First, getting through security and passport control happens faster.

02:43:08If you're a pre-check traveler, you won't have to take off your shoes or remove your

02:43:12belt, and forget about placing your stuff like liquids and laptops in special bins.

02:43:17If you aren't flying to or from the U.S., then you can look up similar services available

02:43:23in your country.

02:43:25If you're flying economy class but don't like it, who does?

02:43:29Check in online and check out the seating options about four days before your flight.

02:43:33It's about that time that airlines typically start upgrading seats, and you might get an

02:43:37upgrade to business class for a small fee, or even sometimes for free.

02:43:42You can also ask for an upgrade when you're already at the airport.

02:43:45Most people forget about this opportunity or simply don't care, so you might just get lucky.

02:43:52Airports are some of the most visited and, at the same time, mysterious places out there.

02:43:57So, let's see what's going on behind the scenes and what secrets airports hide.

02:44:02At some airports, there are special people called profilers.

02:44:06Such people bring to life a special program called SPOT, Screening Passengers by Observation Technique.

02:44:14They analyze or mimic gestures and behavior in order to detect suspicious people.

02:44:20Their job is to notice nonverbal signs of anxiety, people licking their lips, itching,

02:44:25or looking around a lot.

02:44:28If a profiler notices a person acting in an unusual way, they can invite them for an inspection.

02:44:34There, they talk to this person trying to find out more about them and confirm, or not, their suspicions.

02:44:42Airport agents might also be watching you all the way from the security check to your gate.

02:44:47Some airports have facial recognition scanners that can easily track you.

02:44:51They're equipped with special software that compares passengers' faces with their IDs.

02:44:57Keep in mind that if you don't charge your laptop before the flight, it may be confiscated.

02:45:04It's not uncommon for an airport security officer to ask you to power your device up.

02:45:09If you fail to do it, your gadget can be taken away for an additional check.

02:45:14For safety reasons, it's crucial to make sure that it hasn't been tampered with or modified

02:45:19in a way that can cause harm during the flight.

02:45:23Packing an electric brush in your check-in luggage may land you in trouble.

02:45:27Brushes produced by some brands have lithium batteries inside, and those can potentially

02:45:32lead to serious problems in the air.

02:45:36That's why leaving your electric brush in your check suitcase isn't an option.

02:45:40But you're allowed to store them in your carry-on bag.

02:45:43At the same time, if your device runs on AA batteries, you can put it wherever you want.

02:45:49Anyone who's ever traveled by plane knows about the no-liquids rule, but not everybody

02:45:54knows that this rule also applies to peanut butter, toothpaste, creams, lotions, liquid

02:46:00makeup, laval lamps, snow globes, some kinds of medications, deodorant, and even gel shoe

02:46:08inserts.

02:46:09Now, let's go outside for a while and look at those landing spots.

02:46:15Airports charge airline companies huge fees for landing on their runways on certain days

02:46:20and at particular times.

02:46:22But the most interesting thing is that the landing spots can be bought and sold.

02:46:27For example, in 2016, Oman Air paid Air France around $75 million for one early morning arrival

02:46:35slot at London Heathrow Airport.

02:46:38You must have noticed that airfare has increased over the past decade.

02:46:42That's because of the extremely high prices of landing slots.

02:46:47Dispatchers don't only control the planes in the sky, as you can often see in the movies,

02:46:52but they also look after their movements on the ground.

02:46:55They also control the lighting on the runways.

02:46:58There's three types of air traffic controllers, en route, terminal, and tower.

02:47:03Each of these dispatchers has their own area of responsibility.

02:47:08One dispatcher has about five monitors and the information on them is constantly changing

02:47:13since the monitors show weather conditions and information about other planes.

02:47:18You know how it sometimes goes, you come to a security checkpoint and all of a sudden

02:47:23it turns out you have something prohibited in your carry-on.

02:47:27But worry not, you still have a chance to save your favorite pen knife.

02:47:32At some airports, there are on-site postal services and you might have an opportunity

02:47:37to mail your belongings to any address you provide.

02:47:41But the mailing fees are pretty high, plus certain items are prohibited and the postal

02:47:46service won't deliver them.

02:47:49Airports can be selling your lost luggage right now.

02:47:52Of course, I don't say that there's no chance for you to get back your suitcases

02:47:56that's traveled to a different destination, but just as likely, you might not see it again.

02:48:01In this case, an airport has the right to sell your misplaced belongings at an auction.

02:48:07Most airports have an annual lost luggage sale.

02:48:11After paying an entry fee, you can bid on electronics, clothes, bags, and other stuff.

02:48:18While flying, you might have a celebrity on board, but you won't know it.

02:48:22Large airports have separate check-in and security procedures for celebrities.

02:48:27They often board the plane directly through a hidden door located beside the jet bridge.

02:48:33Some airlines also use cool cars to transfer VIP passengers from the terminal building

02:48:38to the plane.

02:48:40At the same time, most people come to the airport well ahead of time.

02:48:44And the most popular activity while waiting for a flight is wandering through the duty-free

02:48:49zone.

02:48:50And even though people rarely plan to buy anything there, different products end up

02:48:55in their shopping baskets.

02:48:58That's because lots of airports are designed in a special way that makes people feel relaxed

02:49:03and at ease.

02:49:04I'm talking about all those huge windows, a lot of light, massage chairs, and comfortable

02:49:10seating areas.

02:49:12And statistically, calm passengers are 10% more likely to spend money on retail, duty-free,

02:49:18and food.

02:49:20Designers put a lot of thought into airport layouts.

02:49:23It helps to ensure the smooth flow of travelers.

02:49:27And the main point here is easy navigation that can prevent people from getting lost.

02:49:32This is achieved through subtle but very effective design cues.

02:49:37Replacing duty-free zones between security checkpoints and boarding gates is one of them.

02:49:43They supposedly help you relax after clearing security and lead you where you need to go.

02:49:49But speaking of food, a celebrity chef restaurant at the airport might not be as good as it

02:49:53would be if you were visiting the real thing.

02:49:57Not chefs themselves, but special restaurant companies are responsible for airport outlets.

02:50:03One of the reasons is the extremely strict security that surrounds airport deliveries,

02:50:07including food.

02:50:09You may still have a nice meal, but it won't be the same.

02:50:13Now I'll tell you about one more way airports manipulate you into spending your money.

02:50:18They make you walk through the shiny duty-free stores straight after the security check.

02:50:23But the most curious thing is that the walkway through such stores usually veers to the left.

02:50:29That's done because most people are right-handed, which means they use their right arm to pull

02:50:34their luggage and are more likely to look to the right while passing through the stores.

02:50:39And the duty-free zone veering to the left leaves more space on the right where passengers

02:50:44are more likely to look.

02:50:46Oh, and have you ever noticed how many mirrors there are at airports?

02:50:52Mirrors are strategically placed there to make airports appear larger and create an

02:50:56illusion of more space.

02:50:58This in turn helps to reduce the feeling of claustrophobia and makes the airport experience

02:51:03more comfortable for travellers.

02:51:06If you have an opportunity, don't exchange cash at the airport – you'll never get

02:51:10a good rate there.

02:51:12Those who didn't buy local currency in advance can instead order it online and collect it

02:51:17at the airport.

02:51:19Some services only need a few hours' notice for such an order, or it might even be better

02:51:24to use an ATM to withdraw some cash at your final destination.

02:51:29Now, have you ever paid attention to airport codes?

02:51:33The most often used are three-letter codes.

02:51:36Why this number?

02:51:38Back in the 1930s in the USA, pilots used the National Weather Service's two-letter

02:51:43city codes to refer to airports.

02:51:46But soon, the number of airports in the country outgrew the number of such codes.

02:51:51That's why airlines expanded this system by adding the third letter – it was usually

02:51:56X. That's how LA, Los Angeles, turned into LAX.

02:52:02But even though there shouldn't be two airports with the same code, some of these codes sound

02:52:06so similar you could easily mistake one for the other.

02:52:10For example, look at this airport with the code CGP in Bangladesh.

02:52:16And here we have CPG – it's the code of an airport in Argentina.

02:52:20It's dangerously easy to fly to the wrong place, so pay attention!

02:52:26So get this – an extra hole at the upper part of the sink has multiple hidden functions.

02:52:31First, in case someone forgets to close the tap, the water won't overflow and the bathroom

02:52:36won't get flooded.

02:52:37Second, thanks to that hole, the water drains faster and it gives an escape for the air,

02:52:42helping the water flow down.

02:52:45Those two holes on a side of any Converse shoe are not only to let the stinky air out.

02:52:50Sure, breathability is important for any athlete.

02:52:53The second reason is that athletes lace through those holes to get a better grip.

02:53:00Donuts have a hole in the middle and it doesn't stand for O in donut.

02:53:04It's not designed for an easier grip either, though it can be quite convenient.

02:53:08It's actually made this way for mass baking so that they can cook all the way through

02:53:11evenly.

02:53:14Baby carrots are tiny and, unlike regular carrots, wet.

02:53:19Baby carrots aren't some special sort of carrots.

02:53:21They're actually made of regular carrots by cutting off the skin and outer layers and

02:53:25then polishing them to look that pretty.

02:53:28The problem is that they can't retain moisture.

02:53:30A regular carrot retains some water inside because of the layers that locks it in.

02:53:35Once they're chopped out, baby carrots can dry out easily, so they usually sell them

02:53:39in bags with some water inside.

02:53:42Toy stores are filled with Beanie Baby plush toys, and a detail that is even more iconic

02:53:47than their huge eyes is their tags saying T.Y.

02:53:51That's a small manufacturing company not so many people have heard of.

02:53:55Beanie Babies appeared in 1993 and they went insanely popular.

02:53:59T.Y. is the name of the company, but it's not an abbreviation.

02:54:03It's the actual name of the company's founder, H. Ty Warner.

02:54:09Most metallic zippers have a hidden lock inside them to save you from awkward situations,

02:54:13such as an undone fly.

02:54:15Oh boy.

02:54:17Don't leave the zipper handle in an upward position.

02:54:19When you pull it downwards, it automatically locks.

02:54:22It's all thanks to those tiny grooves hidden underneath the handle.

02:54:28Almost any public toilet has a large gap between the floor and the door.

02:54:32The reason for such a zero-privacy thing is to actually minimize the level of privacy

02:54:37and comfort so that people wouldn't stay there long and there'd be no lines.

02:54:41It's also easier to clean and safer if some emergency occurs.

02:54:48Headrests in a car are about comfort and detachable headrests are about safety.

02:54:53If you pull the headrest out of a seat, you'll see two bars, which are quite sturdy.

02:54:58If you ever get locked or trapped in a car, you can get out of there smashing the window

02:55:02with these bars.

02:55:07Many cups and mugs have little grooves on the bottom on purpose.

02:55:10They're designed for dishwashing machines.

02:55:12The grooves let the water flow and not spill over your feet when you take the cup out.

02:55:17Also, those grooves let the air flow so the cup doesn't crack even if the tea is scalding.

02:55:25Almost all measuring tapes have a metal tip with a small slot on the end.

02:55:29You can use this slot to hang the tape on a nail or a screw to make measurements without

02:55:33anyone's help.

02:55:35Sometimes this tip has a row of sharp points along the edge on one side.

02:55:40It comes in handy when you want to leave a mark without using a pencil.

02:55:45Doorknobs are usually made of brass, bronze, and some other copper alloys for a reason.

02:55:50They have an antibacterial effect, so they stop microbes from spreading.

02:55:55They get rid of a range of harmful germs pretty fast, within a couple of hours.

02:55:59But don't forget to wash your hands anyway.

02:56:03Grocery carts have loops for a reason.

02:56:06You don't want to put your jacket in a cart next to potatoes and onions.

02:56:09Hang it on a loop.

02:56:11This little hook-like thing is there to help you better organize the space in your cart.

02:56:16The carts also have a super handy grid.

02:56:19Whenever the cart's full, you just need to lift the grid and attach the shopping basket

02:56:23for extra purchases.

02:56:24Placing it in between the horizontal bar above the wheels and the hooks the grid has.

02:56:31A point in an ointment cap is there for a reason too.

02:56:35Most tubes are usually sealed with foil, and it's better to avoid opening it with fingers

02:56:39unless you're ready to say goodbye to your nails.

02:56:42A point easily opens even the most safely sealed tube.

02:56:48Silica gel can often be found in different things you buy like bags, shoes, and many

02:56:52others.

02:56:53Don't throw it away.

02:56:54It's meant to absorb excess moisture.

02:56:56So anytime your shoes are a bit wet, just throw in a packet with silica gel.

02:57:02People used to co-live with rats, and these guys like gnawing on everything they see in

02:57:07their way, including paper.

02:57:09Still, rats weren't able to chew more than the space left on the margins.

02:57:16That black grate on a microwave isn't just some fancy decoration.

02:57:20It's called a Faraday shield, and it prevents the rays from escaping the microwave.

02:57:25It also speeds up the heating, so you can enjoy yesterday's leftovers faster.

02:57:29It may also block phone signals.

02:57:31So if you're tired of numerous calls, just put the phone into a microwave.

02:57:36Don't turn it on.

02:57:40All Tic Tac containers are designed to dispense one Tic Tac every time you open it.

02:57:45The lid has the same shape as the candy.

02:57:47Turn the container upside down, gently shake it, and open it slowly.

02:57:51You'll notice only one candy stuck between those lid grooves.

02:57:54So if you just open the container and shake it until five or even more candies fall into

02:57:58your mouth, it means you've been eating Tic Tacs wrong all this time.

02:58:06Those little holes in the airplane windows are designed to control the cabin pressure.

02:58:11They also protect the windows from fogging up as the temperatures drop and rise.

02:58:15By the way, the airplane window is round for a reason.

02:58:18This way, pressure is evenly distributed so it doesn't get deformed.

02:58:24Blue bristles on a toothbrush are actually an indicator that it's just about time to

02:58:28change the brush.

02:58:30As the bristles get in contact with water, the blue, or whatever other, pigment fades

02:58:34away.

02:58:35So the more you use it, the duller the color becomes.

02:58:40A triple handle on a jerry can is there to make it easier for two people to carry it

02:58:43and distribute the fuel evenly.

02:58:45Gas cans often have a second hole that actually needs to be uncapped too before you pour the

02:58:50gas.

02:58:51The air passage will prevent it from pouring out, so no more fuel waste.

02:58:57Jeans first appeared in 1873.

02:59:00They were invented by Jacob Davis and Levi Strauss.

02:59:04Davis was a tailor who was producing covers and tents, and Strauss was a businessman who,

02:59:09among other things, was selling cloth.

02:59:12The first jeans were made by Davis from denim, the fabric he bought from Levi Strauss & Co.

02:59:18Together they patented the design.

02:59:21Blue was a standard color for denim that was dyed using an indigo dye.

02:59:25The blue color is a tradition that is still often followed today to replicate the original

02:59:29look of a pair of jeans.

02:59:31Jeans also have metal rivets, and they've been there from the very beginning.

02:59:35Jacob Davis, the man who made the first pair of jeans, added copper rivets to spots where

02:59:40pants were more likely to rip, flies, and pockets to make them stronger.

02:59:45Today, they have more of a decorative purpose since they're distinctive and traditional

02:59:49for jeans.

02:59:52Another special thing about jeans is those tiny pockets they have that seemingly serve

02:59:56no purpose.

02:59:57Well, maybe it's true now, but years ago, when many cowboys were wearing jeans, the

03:00:01pocket was made specifically to keep a pocket watch there.

03:00:05Also, back then, a pair of jeans had just four pockets.

03:00:09That tiny pocket, the watch pocket, two big pockets in front, and just one pocket on the

03:00:13back.

03:00:17Many zippers have the letters YKK engraved on them.

03:00:21It's an abbreviation that stands for the name of the company that can be translated as Yoshida

03:00:26Manufacturing Shareholding Company.

03:00:28This Japanese company is the largest zipper manufacturer in the world, so they put their

03:00:33initials on all the zippers they produce.

03:00:35That's around half of the zippers in the world.

03:00:38And that's why you see their zippers more often than any other zippers.

03:00:43Those little white golf balls have dimples all over them.

03:00:46It turns out they aren't there just randomly.

03:00:48At first, golfers were playing with a smooth ball.

03:00:51With time, the ball would get all punched and damaged, but also, it would start to travel

03:00:56way further.

03:00:57The reason here is aerodynamics.

03:01:00Dimples allow the air to flow more smoothly around the ball, taking it further.

03:01:04So the idea was adopted and the balls got their dimples all around, allowing them to

03:01:08travel longer distances.

03:01:12That's it for today!

03:01:13So hey, if you pacified your curiosity, then give the video a like and share it with your

03:01:17friends.

03:01:18Or if you want more, just click on these videos and stay on the Bright Side!

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