WRECKING BALL Vs. SWIMMING POOL from 45m! 

Honestly “Science with Gaunson” is one of my favorite things on this channel

Commtest: To me that looked less like a bounce, and more like a 'lift' with a noticeable delay somewhat akin to the delay while a trampoline flexes downward and loads elastic potential energy. Because of that, I think there were four factors that helped lift it into the air. 1: The container's outer walls flexed noticeably outwards and down just after the hit. As it rebounded, that would provide some upward momentum, enough perhaps to lift the bucket, but surely not the water or the ball. 2: The surface tension of the water resists the formation of independent droplets. The upper splash did disperse into droplets, but the ring around it a little lower remained in a partially laminar flow regime. This means that the water in that ring was pulling up on the water just below it via surface tension. That water pulled on the water a bit below that, which pulled on the water a bit below that, on down into the bucket. At that point, in order for the bottom-most layer of water to pull upward, it would have to create a vacuum pulling against the bottom of the bucket, which would help pull it upward. 3: The plastic bottom, along with the water, spread out the impact shock from the ball. What would normally have been a relatively sharp curve hitting the sand first instead hit in a much larger, approximately flat footprint. The pressure wave in the water and then the impact of the ball itself would nevertheless drive the center of the plastic where it has the most room to flex and give, down into the sand, which would add a little bounce to the bucket and, more importantly, act something like a weak version of a trampoline. 4: The energy contained in the pressure wave traveling through the water had to go somewhere (conservation of energy and all that). Some of it was dissipated into the ground, some was lost to heat and other forms of entropy, but a sizeable chunk of it would have reflected off the ground, reversing the momentum upward. That's what I believe created the lower ring of water. That wouldn't explain the lift of the bucket, but it would have helped to lift the stone along with the water itself, clearing the way for the rebound of the sides and floor of the bucket, and the partial vacuum of the lifting water, to lift the bucket without having to lift the weight of the stone. My best guess anyway.

wreaking ball- 4:01 jetski- 10:49 bouncy ball- 15:27

The moment when the “Science with Gaunson” sign started to creep up only to sink when the winch came on was seriously hilarious.

Here's my commtest entry: when the ball hits the water, the water tries to escape from the top of the pool, and being a fluid, it always tries to stick to the surfaces around it following some fluid mechanics equations called the Navier-Stokes equations (in this case, the Reynolds equation). The pressure against the inside walls of the pool gets high, lowering the resulting Reynolds number, which makes it stick even more to the inner part of the pool, dragging it in the direction in which the water is going, in this case, upwards.

These are some of the most beautiful slow motion footages I've seen on this channel. Congratulations 👌

Pausing to comment how hilarious the “science with Gaunson” tag crept up and disappeared when the winch began to move hahahahaha #howyagoinjack

I absolutely loved this episode’s Science with Gaunson, and how Jack edited it with the graphics😂

Can I just say, I’m a big fan of the whole “throwing the camera around” at the beginning

This is an interesting effect. This is almost the same thing as the steel barrel in the previous video. The difference is that the plastic is elastic like a spring and the steel drum is not and it deformed. The steel drum stayed stretched out and did not store up energy like a spring. So the plastic bucket stored energy just the spring on the trampoline. You can see it get shorter and fatter as it stretches. As it returns to shape the bucket gets taller again and presses on the ground making the bucket jump up. That is the basic effect, but there is some other complex things going on with the hydrodynamics. Need to get old Marky Rober to simulated it in his software. Remember to get a bounce, you need to store energy.

If there’s any channel that deserves to be sponsored by gopro it’s these guys

how good is that "science with gaunson" 6:25 almost sneaking in, before hes interrupted :D

"I've never been near a bomb going off" Has literally pulled a tank cannon trigger several times

I love how every time Stanford picks up the gopro he says i wonder what you've seen

Stanford: "I rekon we put the gopro it in the corner of the pool." me: But its a circle

4:15 Love how editor Jack just casually jumps down six steps in the background of this shot lmao

Darts - 2:00 Atlas stone - 4:00 1st Bowling ball - 8:21 2nd Bowling ball - 9:17 Jet Ski - 10:50 Rexie - 14:19 Wrecking ball - 15:27

I love how much character the atlas stone and wrecking ball have from all their war wounds!

U guys should do a vid with the slow mo guys this seems right up their alley

The pool jump is primarily caused by the surrounding water rushing back towards the center where the falling object has just created a cavity. Following this, it seems the force of the returning water is then directed upwards and through water tension the entire pool is pulled upwards. Just my best guess; hope you guys enjoy.

As the objects come flying down towards them, I can't help but think: GoPro: "Oh, boy. They don't pay me enough for this."

Imagine wandering in the middle of Australia, looking up, and seeing a Jetski fall out of the sky as three guys laugh hysterically.

5:37 that ring of water that rose as the bucket jumped looks so cool

According to Newton’s 3rd law, every action has an equal and opposite reaction. That being said, when the stone hits the ground, the ground “pushes” back in a way. The reason the bucket also bounces is because the stone experiences an inelastic collision, aka a sticky collision. The bucket and stone now have a combined momentum which is directed upwards away from the initial impact. Does that sound smart enough for you? #commtest

Drop Times: 0:00 where we droppin bois? 4:02 small wrecking ball into bucket 8:21 bowling ball into pool part 1 - F for Uni the Unicorn pool toy 9:17 bowling ball into pool part 2 - hoops 10:49 Jet Ski into pool - time for a new pool 14:08 Rexy into large pool...ouch 15:28 Big wrecking ball into large pool

In case half the world didn’t realize: When watching HR tower viddies from the northern hemisphere, things are falling up. 🤯

15:25 I like the video but I just wanted to see that.

3:18 me when the girls walk in to the classroom

That large pool can survive that but when I accidentally graze the side ever so lightly it releases Poseidon’s wrath all over my yard

Ah the best thing to do on Friday... tuning into a new How Ridiculous

Commtest entry: The energy of the atlas stone forcing the water up and out of the container carried the container with it. As heavy as that stone is, the water was much heavier. It was this upward momentum transferred to the volume of water, and the friction of that water on the sides of the container essentially dragging the container up with it.

The we'll pin ya was so cool, also the drone shot on the first drop was spot on. Loving it. God bless

This channel needs an award for the best camera angles. Like seriously XD

Shapes with Stanford Circles have corners.

8:42 R.I.P. unicorn float Cause of death: Hit by a bowling ball that was thrown off a 45 meter tower

Why does "Science with Gaunson" crack me up every viddy?! Love from the states. Look forward to nice glutes and great science moments! 🤣🤣

#Comtest “It’s the pressure, pushing down on me, I’m under pressure” - Bucket (also Queen)

Commtest entry: when the atlas stone hits the water it’s hitting it with A LOT of force and all that force has to go somewhere. However water is incompressible so it can’t absorb any of the force so it instead gets transferred out into the walls of the pool and into the ground. Now knowing Newton’s laws of motion we know that every action has an equal and opposite reaction. All the force off the atlas stone hitting the water causes a reactive force forcing the pool up into the air

I think Newton’s third law: equal and opposite reaction. The ground, essentially, pushed back up on the bucket as hard as the ball pushed down the water in the bucket!

15:22 what you came for

Darts - (When they hit the target) 2:12 The main shots 4:03 (Normal Motion)-(First ball) 5:05 - 5:10 - 5:30 - 5:40 - 5:50 - 6:00(First ball) - (Slow motion) 8:23 (Normal Motion)-(Second ball) 9:18 - 9:28 (Second ball) The water motorcycle 10:53 at 11:10 - 11:54 at 12:20 THICC BALL 15:32 - 15:51 (Normal Motion) 16:15 at 17:21 (Slow Motion) EDIT 172 : It takes me about 30 minutes to do the count.

6:37 herrons shorts was the real star of this video. as for the pool, its all about conservation of energy. the pool is full of non compressible water, which when impacted has to go in the path of least resistance. and the atlas stone is falling with insane velocity, so when the atlas stone impacts the pool, the energy from the stone is transferred to the water, which then pulls the whole apparatus up.

The pool bounced because Rexy had flashbacks to a giant meteor coming towards him and told the pool to get out of there

One of the best you've done boys. Several years following you and this is the best yet. Thanks for the fun. 44Rox.

Definitely need someone to loop and remix Gaunson’s laugh at around 4:17

When the water was "explosively ejected" it created a vacuum or low pressure zone that pulled the tub up.

Intro: throws camera off of the tower People watching in VR:

The explanation for the jump is VERY simple: By the time the ball has thudded in to the dirt, the water is DESPERATELY trying to get out of the way. Thanks to the shape of the pool, that is mostly limited to upwards and a bit outwards.

“For every action there is an equal and opposite reaction” Newton’s third law. Big force down onto the ground is then countered by the equal force back up causing the bounce.

4:50 In the background

"as the video gets longer, the pool gets bigger" how to increase watchtime 101

Wow, i think that was the greatest intro I've ever seen. Better than cinematic movies even, cuz it felt personal.

iPhone: **literally able to communicate with devices around the world** Gaunson: I CANNOT believe that Siri can turn on your flashlight!

Favorite moment? The "Science With Gaunson" logo-play. Laughed VERY hard!

Comtest: The pool didn’t bounce, the rest of the earth tried to run away. 🤣

You want to know why it bounced? The downwards force from the stone pushed the bucket down, wich met the surface of the flat sand and with the water moving upward, caused the bucket/pool to bounce.

Comtest: When the mass of the demolition sphere contacted the surface tension of the water in the pool, all of the spheres ugga dugga’s were forced into the water, which, already in contact with the pool, transferred said ugga dugga’s to the earth through the pool. From here, we know thanks to Newton’s 74th law of quantum mechanics, that every ugga dugga has an equal and oppisite re-ugga dugga. With this the earth re-ugga Duggaed the pool into the air, sending the sphere with it. On its Re-entry to the earth the sphere collides with the bottom on the pool creating its break, as well as a vacuum drawing in the go pro.

Newton's Third Law: Each action has an equal and opposite reaction. The falling weight displaced the water, but as it was contained, it had nowhere to go but up, and the resulting energy was enough to carry the container and weight with it to a fraction of the distance it fell.

4:50 no one gonna talk about how gawnson looked like he just jump from no where?

I want to say that the pool bounced because of 2 things. 1. The amount of water being displaced created a pressure in between the atlas stone and the wall of the pool causing it to be lifted due to the friction. And 2. The shock wave of the pool vibrating gave it a wee little push off the ground.

Stanford: I’ve never been anywhere near a bomb going off Us: you know what time it is Like for a video of them blowing things up with explosives #44club #clayton #howgoodshirt

The pool manufacturer should use the video as advertise their product as “wrecking ball proof”

The bin bounced because all the energy from the falling stone has to go somewhere, so it went into the water (making the explosion) and the bin (which went down into the sand and then repelled out of the sand, raising the bin). 🏀 is stone. 💧is water bucket 🏀. -> 🏀 ⬇️. ⬆️ 💧 💧 ⬆️

The reason your blue tuby bounced is because the water was terrified of the ball, and accelerated in all directions simultaneously. In an attempt to escape, only most of the molecules were smart enough to evacuate up through the top immediately, the slower water molecules tried to stretch the blue plastic tuby, witch is sort of elastic and stretchy, so when the tub decided it had had enough, the tub relaxed back to it's quantum state on a subatomic level, precisely at the same moment the ball had finished smashing the bottom of planet earth. And that's why we experience seasons.

When Scott said “hey Siri” it activated mine 😂😂😂😂😂😂😂😂😂

15:29 Here’s what you came to see, have a good day.

15:31 is the part u came for

oh gosh. imagine if these guys did a collab with the slow mo guys. the amazing shots would just be 👌🏻

colabe with slow mo guys after quarantine. Like if you want them to see this.

10:56 water truck man is wondering how his years of being a water delivery man has lead him to a bunch of idots! 😂🤣🤣🤣

Comtest: Every action has an equal and opposite reaction. The atlas stone pushed down HARD on the water and giant bucket, so the ground had to push back HARD on the giant bucket to keep it there. But the atlas stone stopped pushing (because it was slowed by the water) before the ground stopped pushing (which pushed the bucket, water, and atlas stone into the air). Stuff also happened with compression and water pressure but I wouldn't worry about it.

Commtest: when the stone comes down all that pressure needs to go somewhere. Since the container didn’t burst the water, and stone went up because it had nowhere else to go and had a lot of energy.

Love having to turn my volume down every time I watch an HR video. It's like the vid is in caps lock

OOH BABY, got here BEFORE the notification. Maybe the bell should get me on 😎

(commtest) 1. Why did the pool bounce My answer:science😂🤣

Anyone else get distracted from the slomos from watching the 360* cameras flying around LOL

I was honestly expecting the big pool to be full of oobleck. MARGE VS OOBLECK, WHO'S WITH ME!?

Contest answer: The atlas stone had a high amount of kinetic energy, the kinetic energy transferred to the water, then to the pool itself, then the ground. That kinetic energy wanted to make whatever it's in move but the ground wasnt going to go anywhere, so the kinetic energy went back into the pool and made it jump up. Newton's third law of motion was also in effect

17:10 Ohhhhh That’s cool! Look to the right you can see a Rainbow Form!

Love your videos! The one shot of the water reminds me a star exploding. 🇨🇦😎👍

Wife : how was your day him: I threw a wrecking ball into a pool

Commtest: Go listen to Queen & David Bowie sing "Under Pressure" for the answer 🤔🤘👍

they should do a collab w the slow mo guys

4:05 AWESOME !

Dr Doofenshmirtz wouldn’t make a lazy robot He would make a procrastinator

3:46 perfect reflection in the pool makes it look like the fence is in the water

11:56 When you realize the gopro is stronger than the jet ski itself

That's a beautiful splash and really cool drone shots too! Good job!

“A towel is about the most massively useful thing a How Ridiculous presenter can have." [With apologies to the late, great and totally irreplaceable, Douglas Adams]

I just love how close to dead center Large Marge got. So satisfying to watch

Honestly, I watch these videos for their energy. They could make a video of them watching paint dry and I'd watch that video, I just love their energy.

10:57 Guy on back of water truck wondering about his life choises.

ABSOLUTELY MIDDLED IT MARGE! Large Marge, the size of a barge. mighty viddie. the top down shot was mega

Commtest answer: I suppose it bounced like that because the sheer momentum of the gravitational potential energy from the ball was transferred to the tub, and due to the plastic nature of the tub it was able to deform in such a way that allowed its elastic potential energy to convert the impact into vertical movement. As a result, it jumped that high.

5:02 Him: "what have you seen!" Gopro: " *death* "

Love the way Derek calls attention to his bum by his choice of shorts and how the guys compliments his glutmax Too funny 😂

Comtest entry: the reason the bucket bounced, was because when the stone hit the surface of the water the pressure on the water became so great in the downwards direction that it caused the bucket to warp on the bottom and cause it to act like a spring. This also is why there is a hole on the bottom of the bucket.

I love how the jetski didn't bounce, it just hit the ground and thought, "this is fine", then got bullied by some water. F in the comments

Call the wrecking ball “Wreckxy”

Scott talks about the most random hilarious things 😂