World’s Sharpest Knife-
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00:00This is a normal knife, and this is the world's sharpest knife.
00:03This is an ordinary skateboard, and this is a jet-powered skateboard.
00:07And today, we're gonna be reacting to the coolest homemade inventions ever.
00:10Ever.
00:11Starting with the world's sharpest knife.
00:13I'll be the judge of that.
00:14How do you determine that there's no other knife on the planet sharper?
00:17You have to take the previous world's sharpest knife and put it against the new one,
00:21and if it cuts the world's sharpest knife, it's now the new sharpest knife.
00:25I doubt that's how that works.
00:26Look at that. It also cuts paper really well.
00:28I mean, it's sharp, but how do we know it's the world's sharp-
00:31Well, those balloons didn't stand a chance. Never mind.
00:33Everyone knows balloons are as hard as diamonds.
00:35This guy's gonna make chain mail out of the tabs of soda.
00:38I had this because I was drinking a Dr. Pepper.
00:41Oh my gosh.
00:43My church used to collect these soda tabs, and they said it was to recycle to raise money for something,
00:48but what if they were just building armor in the back?
00:51Your church just has an armory of soda armor.
00:53The arms are covered in Dr. Pepper.
00:55Dr. Pepper.
00:57Three, two, one.
00:59He put his back into that. That was like a baseball swing.
01:02Looks like it still hurts.
01:03See, I was about to say, like, you might not get cut from it-
01:06But you still got a broken rib.
01:08Yeah, I wouldn't have any air in my lungs anymore.
01:10And if you thought that was cool, this is a flying box fan drone.
01:13Oh my god, they're using box fans? That's genius.
01:16That shouldn't be possible.
01:17No, that's genius.
01:18I need to see this.
01:19That's genius.
01:20Oh my god.
01:21What if you just had one of those fly out your window, and you just went outside, and you're like,
01:25my fan's flying away!
01:26Everyone-
01:27Whoa!
01:28Ooh.
01:29That was cool.
01:30They got 30 seconds.
01:31You didn't even get to finish your story.
01:33So, in the history of mankind, a Nerf dart has never flown faster than this.
01:38Let's see it.
01:39Boom.
01:40Ooh.
01:41Wait, did it go through it?
01:42Why does this look so, like, dark and mysterious?
01:44That looks like it was in, like, a Batman film.
01:46It looked like it was the Joker.
01:48And the Red Bull's like, please, not the Nerf bullet!
01:50This is how to make a tin can robot.
01:52Okay, what is he doing with this can?
01:54Hey, this feels like we're going back to the old days.
01:56Life hacks.
01:57Yeah.
01:58Who was here when we used to roast life hacks?
01:59No one.
02:00You were an OG.
02:01No one was here.
02:02What is he doing?
02:03He's making a robot.
02:04That just looks like a car.
02:05Does this robot do anything?
02:06Oh, it does.
02:07That's a cute robot.
02:09That is pretty cute.
02:10If it wasn't cute, I would have said that was the stupidest thing ever.
02:13Take the eyeballs off, and the slim.
02:15I'd argue the same thing with Chris.
02:17No eyeballs?
02:18Bye.
02:19All right.
02:20This is a TV.
02:21I'm not going to read the notes.
02:22I don't know what he's doing.
02:23That's not a TV.
02:24That's a computer monitor.
02:25I didn't read the notes.
02:26Wait.
02:27Okay.
02:28They took the film out of the monitor and then cut it into some glasses.
02:32And look.
02:33Wait, really?
02:34Yeah.
02:35Does that actually work like that?
02:36Only with, like, those old monitors.
02:38Is that why it showed YouTube from, like, 30 years ago?
02:41Yeah.
02:42That's cool.
02:43All right.
02:44So this is turning office supplies into a crossbow.
02:45This is how to take care of that annoying person next to you.
02:49You know, they eat their lunch really loud.
02:51You can't take time to go to the store to get a real crossbow.
02:54What?
02:55You got a deadline.
02:56You got a job.
02:57Amazon doesn't even let you use the bathroom.
02:58They're not going to let you go get a crossbow.
02:59Yeah.
03:00So you make do with what you got there.
03:01How to make a knife from kitchen foil.
03:03Call it kitchen foil or aluminum foil?
03:05Aluminum deez nuts.
03:06Ah!
03:07Sorry.
03:08I haven't deez nuts.
03:09In this video, I had to.
03:10And it wasn't even that good.
03:11Even though it wasn't good, I agree.
03:12It wasn't good.
03:13I had to.
03:14That's where every video I deez nuts you.
03:16That looks real.
03:17It is real.
03:18It's aluminum foil.
03:19But what is aluminum foil made out of?
03:20Imagine if that was your pee pee.
03:22Why did I show up today?
03:26Put that in or I quit.
03:28What can you cut with paper?
03:29You can cut a coconut.
03:30I know because we did it.
03:31Dude, this was so fun.
03:32Remember when we did this?
03:33We made a whole video about that, didn't we?
03:35Yeah.
03:36We had the exact same thing.
03:37Isn't that crazy?
03:38That that used to be what we were like, all right, we're going to make a whole entire
03:41video off of this.
03:42It is so much easier.
03:43Now I got to like, I got to recreate squid game and build sets and spend $3 million on
03:49a video.
03:50But back then I was like, yo, let's cut a circle off of paper and grab a tool from Lowe's.
03:54Yo, why would you recreate squid games when you could just microwave a microwave?
03:58DIY minigun.
03:59Minigun.
04:00Hold up.
04:01What are we getting ourselves into here?
04:03Wait a minute.
04:04Does it actually work?
04:05Yeah, this is cool.
04:06This is very cool.
04:07They're like, all right, here's how you do it.
04:09Just skip a few steps and then boom.
04:11How does it actually work?
04:12That's cool.
04:13Forging a bow out of rusted leaf spring.
04:15I don't know what a leaf spring is.
04:17Oh, that's that thing on a truck.
04:18So he's forging a bow out of metal.
04:20Oh, this is like a Lord of the Rings type though.
04:22Ooh, it's getting pretty.
04:24One shot it's rusty.
04:25The next it's this.
04:26You got to believe it.
04:27I don't believe it.
04:28How long do you think it took to cut those indentions?
04:30I don't know, but he said it was, oh my gosh.
04:32Now it's got wood in.
04:35Wow.
04:36Nice.
04:37That was cool.
04:38That was a good video.
04:39Yes.
04:40Moving on to a tiny knife.
04:41We're going to do some forging on it.
04:43These are the type of videos I watch at like 1 a.m.
04:45when I don't know what else to do.
04:47Just people forging stuff.
04:49Wow.
04:50Oh, look at that tiny knife.
04:51That's higher quality than my eyes.
04:52What happens if you put tracks on a four?
04:55Track tour.
04:56This clip is only here for Chris because he's a truck nerd.
04:59I'm not a truck nerd.
05:00I just like, oh, look at that.
05:02That's cool right there.
05:03I'm not a truck nerd.
05:04Oh my God, truck.
05:05Don't go back home.
05:07Look at that truck knife.
05:09I actually have always wanted a truck with tracks on it.
05:11You can't stop them.
05:12No one can stop you either.
05:14And it's street legal.
05:15That is a completely street legal.
05:17Let's see it in action.
05:19Look at that.
05:20That is kind of cool.
05:21They can't be stopped.
05:22Look at it.
05:23That's so cool.
05:24You got triangles on your truck.
05:25Your circles turned into triangles.
05:28We've been using circles all these years.
05:30It's time to use triangles.
05:32Sock up triangle.
05:33Why are you so mean to me?
05:34Jet powered boosted board.
05:36We shouldn't be allowed to just do this.
05:38Cause like maybe this guy came, but what if somebody tried that wasn't able to?
05:42What is that guy?
05:43Surfer?
05:44The silver surfer.
05:45What's his name?
05:46Silver surfer.
05:47Oh.
05:48What's that?
05:49What's that Spiderman guy's name?
05:50I literally just called him silver surfer cause he's silver on a surfboard.
05:54That's probably why they called him silver surfer.
05:56Oh.
05:57Yeah, that's pretty cool.
05:58That guy's living his best life.
05:59I'm proud of you, man.
06:00I expected jet power to be like.
06:02Some like flames flying out.
06:04Agreed.
06:05It's cool, but it looks safe.
06:06When I hear jets, I think.
06:08Yeah.
06:09Roomba pool cleaner.
06:10Ooh, pretty 3D printing.
06:12Oh, is that the things to make the Roomba float?
06:14Those are like paddle wheels.
06:15Oh.
06:16You know what he's making?
06:18It's literally like Mark Rober's trash robot, but to clean his pool.
06:22Oh my gosh.
06:23Wait, how does this work?
06:24I need to see it in action.
06:25And it just goes.
06:27Yep.
06:28That's pretty cute.
06:29Look, it's even got arms.
06:30It's like, I'm going to eat all the pool trash.
06:32What happens if a bunch of leaves fall down?
06:34You got thousands of leaves in your backyard.
06:35This little boy ain't handling that.
06:37That's a little boy.
06:38He can't handle that many leaves.
06:39I need a big boy.
06:40I would say I'd give it a 10 out of 10 for looks.
06:43Usability, I don't know.
06:44Up next is an automatic bullseye.
06:46Now, here's the thing.
06:47If you want to skip this clip, you can.
06:49I mean, obviously, this guy isn't that smart.
06:51They're not very interesting.
06:53We've all built a bullseye that moves to catch a dart.
06:56It's not that crazy.
06:57You just put some wires, put on a frame.
06:59My boy, he probably spent only a year or two making this.
07:02You're so aggressive, DeMarc.
07:04I love it.
07:05The more I like someone, the more I want to make fun of them.
07:06He must like me so much.
07:07Except for Chris.
07:08Jokes aside, this thing is really cool.
07:10You literally can't miss a bullseye.
07:12And after building it, he took it into a bar.
07:15And look at these people.
07:16They've had a little bit of apple juice,
07:18so they don't understand what's going on.
07:20And they think they're insane at darts now.
07:22That's pretty funny.
07:23Apple juice.
07:24Apple juice.
07:25Oh my god.
07:26Oh my god, it's a bug.
07:27That is a ginormous bug.
07:28All right, give me a camera.
07:29Oh, oh.
07:30It's a bug.
07:31Oh my god.
07:32Come here, sir.
07:33I'm not going to kill it.
07:34Just catch it.
07:35And then now we can just throw it outside.
07:36But what if he comes back?
07:37If the hand of God just reached down and picked you up
07:40and put you somewhere, would you tempt it again?
07:42Kind of.
07:43I'd be like, whee.
07:44All right, steam-powered Nerf gun.
07:46A lot of Nerf stuff in this video.
07:48I like the steam.
07:49I feel like we should have stuck with steam-powered stuff.
07:51Steam-powered video games.
07:52Yeah, imagine if we had steam-powered computers.
07:54Yo, not to cut you off, but this is more important.
07:56This makes me want to go play Black Ops Zombies right now.
07:58You want to go?
07:59Yeah.
08:00All right, thanks for watching.
08:01Subscribe.
08:02Bye.