You know what's been popular rod. What's that our slinky drop video, that is popular, isn't it yeah? Do you want to do another? Slinky drop? Look, look! No! Wasn't the big one, though now at some point growing up. Most of us have been captivated by one of these a slinky, but recently i found out one of the most mesmerizing things about how it moves is something i'd never seen before how it falls true, so what's so surprising about a falling slinky. Ah, that was what i expected well to help.

Explain is physicist rod cross. The idea is that i hold the top end of the sneaking like this and then let the bottom end of the board, so the sling is dangling freely and then i'm going to drop the sling. But i want you to predict. What's going to happen, will the top end fall? First? Will the bottom end fall first or both ends fall together or will the two ends approach each other in the middle? If i didn't see it i'd say last: when i let go, what does the bottom do shoot off? It's going to fall, it's great, it's actually going to fall.

Bottom goes up top goes down, it might come up together now you're going to see the top come down to the middle and the bottom come up to the top good guess the top will accelerate faster than the bottom. I reckon that bottom will stay. This will come down to that in another all right. Well, why don't we give it a shot here? I want you to try to watch the whole slinky as it falls to see what it's doing.

It's kind of down right. Three, two one! The problem is it's a bit hard to tell with the naked eye just what's happening, no idea, i think it came off the bottom come up. I couldn't be sure to really appreciate the physics involved. You need to see it in slow motion boom.

It didn't move dude, oh gosh, that's great! That's weird! That's unbelievable! It does. It does stay there. Just stays there like in midair, it's suspended yeah. It doesn't move at all.

How does that work? How does that work? Chad? What if i put a big ass slinky - and i tie it around my chest and i i have it in the air on top of a building and i jump and i unlatch and i'm going to float in here, can you explain that? Well, you've got to look at what's happening at the bottom. End. Gravity is pulling the bottom end down tension's pulling the bottom end up. The two forces are equal and opposite, so the bottom end remains at rest.

Then i let go at the top end. The tension in the spring changes, but it propagates down the spring call by coil. No chat chat. Guys you get a crane.

Okay, you guys guys get a crane. Okay, crane crane crane like this: okay, okay, hi smile, okay and then you get a big ass, ridiculous piece of steel. That's like this. Okay, again, okay, okay and in the middle is me.

Okay - and i strap myself to the sides like like a web like that or run a slinky okay and then at once, i jump in there as far as as hard as i could, or or a platform a platform, perhaps platform development and the crane moves boom And it they d-latch the thing and then now now the slinky is in the air, but i'm jumping since slinky is going to go down and this is going to stay up. Am i going to be levitating yeah, guys i'll be i'll, be levitating for at least five seconds? I mean yeah you're dead by the steel, but that's the point of the experiments until it reaches the bottom end and that takes about a quarter of a second and then the bottom end falls. So the tension doesn't actually change at the bottom. Okay.

So if i add mass, all i have to do is add the same mass to the top. So i i add eric my friend at the top and i put him at the top. So eric is strapped to the top i'm just at the bottom and we're blocking then get a butt ton of steel to bunk until the rest of the slinky has collapsed correct. The same principle applies to sporting equipment like tennis, rackets or golf clubs.

When contact is made with a ball, a wave travels up the shaft, so the golfer's hands don't feel the hit until after the ball is already on its way to the hole. Now, as a final extension on this experiment, we've tied a tennis ball to the base of the slinky, we're gon na drop it and see what happens. That's me incredibly, the same thing happens. Oh my gosh.

The slinky has simply stretched. I would levitate. I had the same ratios of metal, metal, metal, metal, shaft to slinky and ball of the human. The same ratios and i would float and reach a new flow equilibrium where the gravitational force down equals the tension force up.

It didn't make a difference. It is counterintuitive, but that's what makes physics so interesting. What? If okay, okay, guys, if there's no wait guys this! This is like a loophole of life. If the ball changed, nothing but added weight, just put a car.

Oh my god, you attached your cat to one. You get a car and reached a new equilibrium where the gravitational force down equals the tension force up. It didn't make a difference, it is counterintuitive, but that's what makes physics so interesting. That's why i keep doing experiments like this.

Okay, yeah there you go yeah. I know if this is don't worry. I know physics, don't work like this okay chat, but i'm dead, ass. Okay, guys make a drone like this.

Okay. This is my drone. Okay, okay and i put hundreds of slinkies slinky slinky slinky, slinky, slinky, slinky, slinky sling. You think he's thinking they could take a sticker.

Take a second second, second, second season, xqc and one at a time. I have a pumping function inside that propels the slinky upwards one at a time slinky boom. Then then, then it's going to stay up, but it goes down. Go down, go down, go down! That's slinky! Bang slinky number two! While the pump is recharging it and one of the other, what if it did it boom goes down, goes down, goes on bang and and then it just wouldn't it actually they don't, because if you put it big, is it enough when actually no? No, no wow? This take must be suspended in a slinky equal, the force in the spring, okay, it wouldn't, ladies and gentlemen of roundabout city, our brainless mayor is preparing to do a stunt in the middle of the roundabout, by jumping off a crane while attached to a slinky.

My neighbors in sectioned rosex are having a watch party and my misery the force from london. Okay, the force is putting to go up, we'll go push it down. Instead, one attach myself to bottom of massive slinky from crane step 2. Could you use this phenomenon to make a new invention step 4 release the slinky step? 5 june 9.

2023. Slinky incident. Troll despair, four slinkies, okay, four slinkies at the bottom. You have an item.

Did you that you like a diamond, a diamond okay at the bottom? Okay, what, if you wear this, you put something you pull them up, mark robber, then boom. Then you pull up. Oh my god. I can't wait for my friend rick's nut sack to be slightly shot into my dumb experiments like this.

You are the smartest streamer on twitch no cap on god, okay! Well, if you do something like this, maybe you should send me a sentence tonight.