Crush a steel drum with air pressure
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- Опубликовано: 12 окт 2017
- Chief Scientist Carl Nelson demonstrates how to crush a steel 55 gallon drum using only a slight imbalance in air pressure. After heating the air and water vapor inside the drum, it is sealed and then cooled in a tray of ice. As the water vapor condenses and the air cools inside the drum a slight imbalance in air pressure occurs. The drum crushes dramatically. Tony Geftos from 13abc assists in the process.
Наука
Before retiring I used to work in the water industry. We used 20,000 litre tanker trucks for emergency supplies. One of our safety briefings was a video of what happens when the water was pumped out of the tanker without the valve being opened to allow air into the tank as it emptied. The effect was the same as the barrel , except on a container 80 times bigger. Scary stuff.
This vid probably about to get a lot more views suddenly
legit why I'm here lol
Yeah I wonder why 🤔
Idk what for. People be so slow to learn until it goes viral. That's why they're disabling comments on these videos. Lmao
Note to self: Don't try to build a submarine out of a 55 gallon drum.
or carbon fiber, lol.
New idea. Pure plastic submarine using an Nintendo Wii controller
It's so frightening to imagine five people in this steel drum.
Also realize that this experiment shows the difference of only 1 atmosphere difference. At the bottom of the ocean near the Titanic, the pressure is about equal to 400 atmospheres, or 400 times the pressure you experience on the surface. If you think this visual is dramatic, just imagine that at 400 times as violent.
Inbreds
It's called a submarine
You wouldn't even have time to process pain of sub being crushed...
Yeah, people whom see this type of experiment, and don't understand atmospheric pressure really have no idea just how FAST AND VIOLENT that sub implosion really was, no idea.
@@williamh6547it literally crushed them n they had no idea
Puts into perspective how many hundreds of kilos of atmosphere are pushing down on us all the time, and it's only the air and liquid inside us pushing back with the same pressure force that stops us from being crushed like the drum.
So hundreds of kilos of air pressure are 'pushing Down on us', What is preventing all that pressure from dissipating + expanding while it pushes Up + Out against the infinite Vaccuum of 'Space' ?
@@swamplifecontrol Earth's Gravity. Gas is also pulled towards the Earth by gravity. Without gravity exactly what you stated would happen, all our atmosphere would migrate out into space.
@@peterschmidt1453 Or maybe it's something else _ since "These three forces are enormously powerful but operate mainly over short distances. Most important to physicists, all three can be neatly explained by the theory of quantum mechanics.
Gravity is different. Physicists can’t quite wrap their heads around the graviton, the quantum particle of gravity that’s almost impossible to detect.
Needless to say, all of this makes gravity - and the search for the graviton - a core challenge of contemporary physics." ruclips.net/video/Zz95_VvTxZM/видео.html
@@swamplifecontrol Gravity.
@@swamplifecontrol Gravity lol
I've been doing this with 1 gallon cans in my physics classes for over 25 years. It's pretty dramatic. However, I also do something that I never see anyone else do. And that is, expand the crushed can. To crush the can, you need to lower the pressure inside by heating it up so that air leaves the can. Once the can is crushed, if you cool it with the cap open by putting in a freezer with some water in it, let the water freeze over night, then cap the can and heat it up, the pressure will become greater inside than outside and the can will "de-crush" or expand. Pretty cool.
did u do it with another 4 ppl under 3800m sea?
@@kenho-wr5ul2rh7m not funny, but appropriate
I was thinking they should let the 2-liter bottle warm back up and show it expanded! So cool you take the experiment further than most.
Just an unrelated side note. I remember one winter I had bottled water in my car, but the water wasn’t frozen. I took a bottle into work one day and when I put it on my desk it immediately froze! I was like wth just happened??? Lol. Looked it up and found out it was super cooked water. I thought it was so interesting!
Huh, That an intersting idea. I wll have to give that a try!
--Carl
And it's only 1 atmosphere pressure. Imagine 380. The 5 people didn't even know what hit them. That's a little "comfort" knowing that they didn't suffer.
N someone said that they lost balance control n where rolling around on top of each other. So its not like they where just sitting in one spot the sub was turning and going down like an arrow at the time n then it leaked water n then imploded with out them knowing what was going on. They where all crushed on top of each other. Now there's an image for ya.
It's probably much less than a 1 atmosphere pressure difference. Which makes it even more impressive.
--Carl
Unless they couldn't breathe.
This is just a demonstration of how fast anything can implode due to a pressure imbalance in fractions of a second really puts into perspective the reality of an implosion and I assume the stronger the pressure the faster a violent the implosion would be.
Pressure imbalance is not the only criteria to implode the object in question. The object (the can or the drum ...) will implode if the pressure difference is greater than the materal can withstand.
Wow! That canister is so big! You could say its a.. “titan”
you rushed with your conclusions there
The word of the year and years to come...Implosion. This word has gone viral.
effect starts around 3:50 mins.
3:50 that is so fast, might as well call it instantaneous.
Even slowing the video to .025x speed it gets crushed instantly so it’s really fractions of a second mindblowing speed
A fun experiment a lot more people can do is to take a plastic water bottle on an airplane, then after you've emptied it cap it tightly while at altitude (a cabin pressure equivalent of about 7000' above sea level). Then when you land (assuming you're landing at a low elevation airport), the bottle will crush some. It won't happen all at once like the steel drum but it's still cool to see.
Chief Scientist Carl Nelson demonstrated extraordinary and amazing friends
0:18 “14.7 pounds of pressure on our bodies”. To put that into context, we live under an ocean of air, and the very bottom of air (sea level) the pressure is 14.7 psi.
Even creepier is that we live at the bottom of an ocean of gases that is 80% toxic to us...most of the air we breathe is composed of nitrogen
Yes , a square metre of air in a column 120,000 ft high, weighs about 10 tons .
When my time is up, I hope to collapse as fast as that drum.
Ok no more implosion videos for me...
Just wanted to know where I can get that awesome flaming jacket !!
Not FBI you can get it at your local KFC
This is what physics classes consist of. In a world where more and more dropouts are claiming that schools “indoctrinate”, I guess we need more learning outside of the classrooms.
Yeah, more teaching like this instead of teachers filling kids heads with left wing wokery and how to be easily offended.
Show total work done by an aneroid barometer in joules ?
Thanks for this video!
A drum, a torch, some liquid nitrogen, a bit of madness. Welcome on RUclips!
IMPLOSION
You will never catch me in a submarine.
I watched a rail road tank cae video several years ago where they pumped the air out it went just like the drum did
I looked at that for about half a second and thought his legs was on fire.
Lol it dose look like it if your not focused on him lol
seeing this after the submarine situation
It all depends on the resistance of the material. If this drum was made of a very thick steel would it be implode ?
Depends on your definition of "very."
In the immortal words of Mr. Miyagi.....
"Squish, just like grape"
Easy safe way, take a soda bottle, after you drank or poured out the contents, use your mouth on the opening and such out the air. As you do, it slowly gets crushed from the outside air pressure.
Aww, I get it! Just like a little submarine on it’s way to visit the Titanic 😮
That scientist deserves a raise
How did that work out
Nature on earth resists all forms of vacuum.
Man you can see how hot it got too judging by the discoloration of the steel
The 'Stockton Crush' method.
I’d like to think this is the reason why black holes exists after a dying star.
Nice
What would be the pressure difference? Just 1 bar or more?
obviously a maximum of 1 bar. because the only pressure here is the external atmosphere. inside, it can only reach zero, it cannot be negative. suction does not exist per se, its just inferior pressure. just like there exist a temperature zero, btw.
and yes, we re all thinking at the same thing. for the sub, it was around 300 bar.
It is greater then zero and less then 1 bar.
Probably less than one atmosphere. Next time we do this I will add a pressure gage to the small port on the drum to determine pressure inside the drum.
--Carl
I wanna see it done the other way, cool down, cap on, heat up then try for the BOOM
Yep here for ocean gate research
That lab coat is fire.
What's sad is that with little extra effort, they could have made ice cream for everyone.
3:53
I also watch it at 0.25 but it was so fast
It’s real its not edited
Titan Submersiable
Titan sub is Harambe 2023.
I feel they predicted the oceangate Submarine
Not half bad. I tell you.
Why is water needed? Why don’t u just heat up the air in the drum? Pls help me
When the water boils, the steam created fills the container, pushing the air out. Since the steam is a gas, it expands to fill the space and ends up taking up about 1000x the volume of the liquid water. Eventually it starts coming out the hole. The cap is placed on. Then when exposed to ice and cold water, the drum cooled enough for the steam to condense back to water. But it only takes up about 0.1% the space as the steam. The other 99.9% is nothingness --- a vacuum. So this isn't a "slight difference in air pressure," as he suggested. It's the difference between 14.7psi and just above 0 psi.
@@arvia1984 thank you. That’s a very big help
@@Ramiristempest It is exactly how the early stationary low speed atmospheric steam engines used to work ( for pumping water out of mines etc ) steam filled the cylinder to push a piston up , then they cooled the steam in the cylinder which condensed causing a partial vacuum which allows the atmosphere to push the piston back down.
Here's how it works . ruclips.net/video/GMgP-4O99qU/видео.html Technical explanation at 3:40 .
@@WildPhotoShooter thanks. Btw, if I'm interested in these kinds of things, what major should I take? I need some advices
@@Ramiristempest I couldn't advise you on that, you would need to decide what discipline of physics you wanted to spend your career in.
Show total work in joules per square meters per degree celcious per meter higher then sea level per joules input per second
he lost so much of the vapor fiddling with the cap
(remember) Stirling engine
It takes a long time to ignite the gas burner, and I'm having trouble closing the drum lid, so the length of the video is unnecessarily long😆
we are here after TITAN
The new sub comments are to funny
3:53 Dude that happened to fast. Looked like the video ws cut from when it was good to after they ran it over with a truck XD
That's just how fast air is. Just look at the videos of people doing similar with a soda can. It really is instantaneous.
Plus you can see a car move in behind the can right before it implodes and appear in front exactly when expected. So no cuts here.
@@Skylancer727 ik I was joking😂but thanks
Anyone from resnick halliday
S-H-I-T!!
3 FREEEEEEEZU!!!!!!
I don't think that the submersible TITAN imploded very quickly as shown on this video. Because when the submersible was moving down to the ocean the changes in water pressure were gradual and slow. In the case of TITAN there is no sudden changes. Therefore I think that before the implosion, the submersible started to make a deformation and it collapsed like "implosion of a can" but not suddenly but slowely.
I think you are wrong, once a weakness formed in the hull of the Titan the collapse would've been instantaneous because its strength would have been completely compromised and 400 atmospheres per square inch ( equivalent to about 4000 tons over the whole surface of Titan ) collapse would have been instantaneous. The crew might have heard a creaking for a second as the hull failed, but I don't think they would even have had time to ask each other what the noise was. Carbon fibre snaps like a carrot when it fails.
@@WildPhotoShooter Do you think that if the pressure hull was made of steel instead of carbon fiber , would the deformation be gradual as well as the failure ?
@@zehravigna4873 Nope, even in a steel hull once the strength is compromised and fails the collapse would be just as fast until all the air has been expelled ......we saw how fast the 45 gallon drum failed when its strength was compromised .
A human body would collapse and implode just the same at the depth the Titan was at, our skull and rib cage would collapse like an egg shell.
@@WildPhotoShooter This gallon imploded very quickly because it was not thick enough, in other words his stength was not strong enough. If this drum was made of a very very thick steel the implosion would not be as sudden as on the video. We may have even observed the deformation. It is my opinion.
@@zehravigna4873 Anything would implode with exactly the same speed when it reached its design limit , even a modern nuclear submarine would fail in exactly the same way if it went too deep.
Wow, talk about unsafe. What if the cap flew off and hit him in the face.
Well, thats pretty unlikly. The cap screws into the barrel, the hardest part is screwing the cap into the drum.
--Carl
Let's get over implosions, please.
That was a rubbish set up….I am surprised it worked at all. He spent too little time heating the water to make steam and half that time just warming the drum’s top section. If he had got that drum properly puffing steam clouds out THEN the crush would have been spectacular. Edit: Thinking maybe a bit harsh…I guess he did demonstrate the principle at least. BTW this is how household barometers work with a needle moved by the squishing of a metal box due to changes in air pressure…
He said he had boiled the water before starting the filming, so it just needed a little extra to get it boiling again, maybe you missed that part .
These steel drums are too big to step on and squash!
This presentation was brought to you by the Titan Submarine Expedition Team.
Should be not air in the drum at all. It has been displaced by the steam. The steam is being cooled a condences leaving a vacuum.
Who are these clowns?
this was a makeshift experiment just to show how it works. you arent going to get the drum completely empty of air unless you are in a lab environment with special equipment and rooms. You sound like the clown.
Badass lab coat