Why Passing Airport Security Takes So Long.mp4

Bright Side

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Transcript

00:00Hey, I'm going on a long and tiresome flight, but having to spend 10 hours crammed in an

00:09economy class seat isn't the only challenge I'll be dealing with.

00:13I have diarrhea.

00:14No, not really, it's more unpleasant than that.

00:17I have to pass through airport security.

00:20How about I take you with me, and we'll see how it works from the inside?

00:24Ok, so I've just arrived at the airport and got out of my taxi.

00:29And now there are several types of airport security I'm going to go through.

00:33The first thing I see after I enter the terminal building is a metal detector that uses electromagnetism.

00:40You've probably passed hundreds of these in malls, theaters, or stadiums.

00:44It's the first and, actually, very basic level of a security check.

00:48The main purpose of this detector is to figure out whether I'm carrying anything dangerous

00:53made of metal.

00:54For example, a knife or a dagger.

00:56Well, I'll be honest with you, it always seemed like this metal detector thing works

01:00with the help of some magic.

01:02However, it turns out I was wrong.

01:05First time this year.

01:06The construction of this device is quite simple.

01:09A coil and an alternating electric current generator.

01:13The alternating current creates a varying, that's important, magnetic field in the

01:17coil.

01:18So, let's say I'm going through the detector's frame, carrying something metallic.

01:24Thanks to the varying magnetic field, which surrounds this metal object inside the detector

01:28frame, it starts to produce electric currents of its own.

01:33And these currents, in turn, begin to create a magnetic field of their own.

01:37This change is immediately noticed by a special device called a magnetometer, which immediately

01:43sets off an alarm.

01:44After which I get stopped by a security agent, who makes me remove my keys from my pocket.

01:50The line behind me is grumbling, but the next time I go through the metal detector,

01:55the alarm stays silent.

01:57Interestingly, the man behind me in line doesn't have to go through a metal detector.

02:02As far as I understood, he has a heart pacemaker, which has some metal parts.

02:07The strong magnetic field of the security check device can mess up the functioning of

02:11the implant.

02:12Anyway, I come up to the check-in desk to leave my suitcase.

02:17I can't see it, but I know that after it moves further down the conveyor belt, powerful

02:22X-ray scanners will make sure my baggage doesn't present any security threat.

02:27There are two types of security X-ray scanners.

02:30One of them will examine my bags, while the other, situated at the security check, will

02:35scan my body.

02:37But since my suitcase can deal with the radiation a bit better than me, the intensity of these

02:41scanners is very different.

02:44So once my baggage is inside the airport scanner, the device releases X-rays.

02:50These rays go through the suitcase, and some of them get absorbed by all the stuff I've

02:54packed inside.

02:55At the same time, the empty spaces, though I'm not sure I have any in my bag, can't

03:01block the X-rays.

03:02That's why the waves just go through such spots without changing in intensity.

03:08After going through the bag, the X-ray waves hit a plate-like detector, and after that,

03:13they're supposed to go to the second detector.

03:16But the material located between the two detectors doesn't let the low-energy waves through.

03:22And that's why only the high-energy waves reach the second one.

03:26After that, the outputs from the two detectors get compared, and a digital image appears.

03:32In this image, security agents can see the shapes of the things I've put in my bag.

03:37On top of that, different materials are shown in different shades.

03:41For example, metal and glass are darker, and food, clothes, and plastic are lighter.

03:46In any case, I've left my bag at the check-in conveyor belt, and I'm now ready to go through

03:51a thorough security check myself.

03:54I'm going to be scanned with the help of X-rays as well.

03:57But in this case, the intensity of the waves can't be measured.

04:01What's more, they don't go through my body, but get scattered over the surface.

04:05That's why this procedure is way less harmful than the one my suitcase has gone through.

04:10The X-ray waves don't fully pass through my body, and therefore, I don't get that

04:15hefty portion of radiation.

04:17Also, I'm lucky enough to go through a millimeter-wave scanner, and that's one more thing you should

04:22know about the human airport scanners.

04:25There are two types.

04:26Some scanners use millimeter-wave technology, and others work with a backscatter X-ray technology.

04:32A backscatter scanner needs to take two pics, one from the front and one from the back.

04:38As for a millimeter scanner, it produces just one 3D image.

04:42There's probably no need to say that millimeter-wave scanners are safer than the other kind, since

04:47they emit less harmful radioactive energy.

04:50Finally, it's over.

04:52I'm done with all the security checks and screenings and can start the most awaited

04:56part of my journey – the duty-free hunt.

05:00But even though you and I know how airport security works now, I bet I can still surprise

05:05you.

05:06Here are several other unexpected facts about security at the airport.

05:11Cats present one of the biggest airport threats.

05:14And no, not the Andrew Lloyd Webber kind.

05:16There are few things the Transportation Security Administration dislikes more than an angry

05:22feline.

05:23The thing is that a dog probably believes that an agent who's patting it down is just

05:28some random human being giving it a good cuddle.

05:31But try doing it to a cat, and you might not get out of this ordeal with your hands unscathed.

05:36And if a rogue cat manages to get loose, it'll not only be extremely hard to catch, but it'll

05:42also cause a serious security breach if it hasn't been checked yet.

05:47If asked, most people would say that the dirtiest places at the airport are door handles, bathrooms,

05:52or floors.

05:54But all these people would be mistaken, because the biggest number of germs dwell in the airport

05:59security trays.

06:01Just remember those long lines of travelers touching the trays, carrying them, and putting

06:06their shoes, carry-on luggage, and all the stuff from their pockets inside.

06:11No wonder security bins have proved to be dirtier than airport toilets!

06:15Besides, these trays aren't likely to be disinfected often enough to get rid of germs

06:20regularly.

06:22If you've ever felt as if the airport security was talking about you, you might not be as

06:27paranoid as your friends think.

06:29In fact, security agents admit that they do talk about travelers with the help of code

06:34phrases.

06:35For example, they have special codes for particularly annoying passengers.

06:39Who, me?

06:41And if such a traveler gets an extra-long screening at the next checkpoint, well, it's

06:46probably just a coincidence.

06:48Or not.

06:50Anyone who's ever traveled by plane knows about the no liquids rule.

06:54But not everybody knows that this rule also applies to peanut butter, toothpaste, creams,

07:00lotions, and liquid makeup, lava lamps, snow globes, some kinds of medications, deodorant,

07:06and even gel shoe inserts.

07:08It's true!

07:10Security scanners can mistake certain foods for explosives, which can lead to chaos, additional

07:15security checks, and a missed flight.

07:18That's why, if you have some sausage or cheese in your luggage, don't pack them

07:23too deep in your bag, or simply remove them from your suitcase altogether.

07:28Surprisingly, in some unique cases, forgetting your ID at home doesn't mean having to miss

07:34your flight.

07:35Apparently, you should provide super-detailed information, including your name, address,

07:41and some other facts that can help to identify you, to the airport security.

07:45If they manage to confirm your identity, you can move on to the process of screening.

07:50However, it'll be much more thorough than it would be should you have your documents

07:54with you.

07:56Remember to dress down every time you go through the airport security screening.

08:00Most people don't realize they're wearing a lot of stuff that can set off the security

08:04scanner.

08:05Among the most common things are watches, hairbands, belts, metallic clothing decorations,

08:11and even bras.

08:12So, try to wear simple clothes without an abundance of metallic buttons and choose to

08:17travel without accessories.

08:20And remember that, before going through the scanner, you should take off your coat or

08:24jacket and any jewelry.

08:27And to the security guys – hey, I was just kidding around about the diarrhea thing, you're

08:32much more fun than that!

08:34So no hard feelings?

08:36Guys?

08:37Guys?

08:38Oh boy…

08:39Hey, if you learned something new today, then give the video a like and share it with a

08:43friend!

08:44And here are some other videos I think you'll enjoy.

08:47Just click to the left or right, and stay on the Bright Side of life!

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