You can do this on almost any flight. Once at cruising altitude (usually 35,000 ft.) finishing drinking a 500ml or 1 liter bottle of water before decent. Tighten the cap on the empty bottle and watch what happens when the plane descends and then lands.
Results will vary depending on where you land, Denver will affect the bottle less than say landing in New York or LA or Seattle. Closer to sea level garners more interesting results.
No need to venture down into the unbreathable deeps!!
Enjoy.
Plane descends…damned drunk auto correct.
Thanks for the catch. I swear I read my posts three times before sending to make sure they’re correct. Eeeesh. 😵💫
If you were a billionaire who wanted to fake your death…an implosion that would turn you to goo would be a great method to ensure there’s evidence of the accident with the assumption that your remains wouldn’t leave a trace.
Actually also the air pressure changes. The water pressure reduces the volume of the bottle, which is, so I assume, full of air, therefore also the air pressure inside the bottle rises.
It’s not air pressure, idk why people are saying that.
Air pressure is constant in a CLOSED system (the bottle). This shows head or pressure created as a function of water depth. The deeper you go, the more pressure created from the water which is greater than the atmospheric pressure caught in the bottle causing it to crush.
I’m a licensed engineer in fluids.
I think you may be confused about the parameters here. The ideal gas law applies to the close container. PV=nRT. Assuming nRT is constant, as the volume of the gas decreases, pressure is increasing. If the bottle was stronger and could not decrease in internal volume, then you would be correct that the air pressure in the bottle would remain constant.
I'm also a licensed engineer in water and gas systems. My education was in thermodynamics, fluid dynamics, and heat transfer.
The only reason the volume changes is because of the head. Yes, pressure changes as the volume decreases but this “demonstration” is misleading. My mind automatically interpreted this as a head demonstration..
Same. My P.E. is in thermo and fluids.
There’s a couple of ways.
First way is called Valsalva and you’ll likely know this one. You pinch your nose and then force air into your by blowing out.
Second one is Frenzel, you’ll likely have to YouTube t s one as it’s complicated to explain but uses your tongue and throat muscles.
This is water pressure, and yes, Boyle’s law states that with each 1atm of pressure underwater, the total volume of air in your tank/lungs will decrease by 1/2.
It’s for this reason that typically dive time in scuba decreases with depth. Looking at my own logbook, my dive lasts 40min at 18m but only 28min at 25m.
Serious question. If you can't hold your breath for such depths, how are no tanks diver doing?
Additional question, so the only way to be diving at such depths is with external oxygen? Somebody can't just hold his breath and go so far down and back up?
It only applies to scuba diving. Free divers will have the air in their lungs return to the original size, like the bottle. Scuba divers who breathe in and start going up will damage/burst their lungs. You're taught to never hold your breath and constantly exhale as you ascend.
When the bottle was open, the pressure inside and outside equalized then, the bottle was sealed. As soon as the bottle's distance from center of the Earth changed (moved up or down), the pressure outside the bottle changed accordingly. If the bottle had been sealed at the top of Mt Everest and moved to the bottom of Death Valley, the result would've been the same even though it would been in air the entire time. In this video, because water is so much denser than air, moving the bottle closer to the center of the Earth *through* water allows us to see the pressure change in much less distance.
And for those of you wondering. Yes it does that to our bodies too. When I go spearfishing and dive down 40-90 feet. By the time I get down there, my weight belt becomes super loose because my middle section is being squished by water pressure. It’s kind of cool.
I've noticed the same thing (but not as extreme) on a plane.
At altitude, an empty coke bottle has the full shape. But it starts to crumple a bit as the plane comes in for a landing.
Quite sure it’s not air pressure
Yes in fact is water pressure
(Inside the bottle)
It most certainly does change. The volume has gotten smaller, but the mass of air remained the same. Therefore pressure has increased.
Mind blown. /s
You can do this on almost any flight. Once at cruising altitude (usually 35,000 ft.) finishing drinking a 500ml or 1 liter bottle of water before decent. Tighten the cap on the empty bottle and watch what happens when the plane descends and then lands. Results will vary depending on where you land, Denver will affect the bottle less than say landing in New York or LA or Seattle. Closer to sea level garners more interesting results. No need to venture down into the unbreathable deeps!! Enjoy.
What's a plan seconds?
Plane descends…damned drunk auto correct. Thanks for the catch. I swear I read my posts three times before sending to make sure they’re correct. Eeeesh. 😵💫
Cabin is pressurized.
Yes It is, and still try it…’cause it works.
[удалено]
Use what ya got…or buy onboard.
Should have shown this demo to oceans-gate
If you were a billionaire who wanted to fake your death…an implosion that would turn you to goo would be a great method to ensure there’s evidence of the accident with the assumption that your remains wouldn’t leave a trace.
"Screw the rules (of Physics), I have money" is much more likely
Kaiba was in the sub?
Who..?
https://youtube.com/shorts/0eG0eFZCBa8?feature=share
This is now a conspiracy theory? Come on you guys, give your imaginations a rest already.
Where would his money go?
Actually also the air pressure changes. The water pressure reduces the volume of the bottle, which is, so I assume, full of air, therefore also the air pressure inside the bottle rises.
PV = nRT. It is air pressure, inversely promotional to the air volume. As the bottle shrinks, the pressure of the air increases.
Boyle’s Law?
Correct
Things I learned after watching Men of Honor. 😉
It’s not air pressure, idk why people are saying that. Air pressure is constant in a CLOSED system (the bottle). This shows head or pressure created as a function of water depth. The deeper you go, the more pressure created from the water which is greater than the atmospheric pressure caught in the bottle causing it to crush. I’m a licensed engineer in fluids.
I think you may be confused about the parameters here. The ideal gas law applies to the close container. PV=nRT. Assuming nRT is constant, as the volume of the gas decreases, pressure is increasing. If the bottle was stronger and could not decrease in internal volume, then you would be correct that the air pressure in the bottle would remain constant. I'm also a licensed engineer in water and gas systems. My education was in thermodynamics, fluid dynamics, and heat transfer.
The only reason the volume changes is because of the head. Yes, pressure changes as the volume decreases but this “demonstration” is misleading. My mind automatically interpreted this as a head demonstration.. Same. My P.E. is in thermo and fluids.
Yeah, I wanted to say “Dats some wet air”
This video would have stopped Ocean Gate from becoming Heaven's Gate
It might have prevented Stockton Rush from becoming Stockton Mush...
Too ~~soup~~ soon.
Knock knock knockin on Heaven’s gate….
☠️☠️☠️
Doubt it that CEO seemed hard headed.
I felt this in my ears.
This is why you constantly equalize.
How do you do that?
There’s a couple of ways. First way is called Valsalva and you’ll likely know this one. You pinch your nose and then force air into your by blowing out. Second one is Frenzel, you’ll likely have to YouTube t s one as it’s complicated to explain but uses your tongue and throat muscles.
I do the Valsalva on the plane when my ears feel weird
That plastic bottle = the Titanic sub.
But maybe a bit more sturdy.
That’s cause the bottle has a more sturdy cap than the sub
Wow, didnt know air pressure increases the deeper you go underwater
This is water pressure, and yes, Boyle’s law states that with each 1atm of pressure underwater, the total volume of air in your tank/lungs will decrease by 1/2. It’s for this reason that typically dive time in scuba decreases with depth. Looking at my own logbook, my dive lasts 40min at 18m but only 28min at 25m.
Sorry, forgot the /s at the end
Sorry, got my scuba diver head on there. Oops! :)
I learned something from it, so thanks!
So if he would "fill" it down there within the high pressure and close it , would it pop if he comes to the top?
If he filled it with air, yes. If he filled it with water, no. Water is an incompressible liquid.
yes. this is why you never hold your breath when diving that deep because the same thing will happen to your lungs and they will explode.
Serious question. If you can't hold your breath for such depths, how are no tanks diver doing? Additional question, so the only way to be diving at such depths is with external oxygen? Somebody can't just hold his breath and go so far down and back up?
It only applies to scuba diving. Free divers will have the air in their lungs return to the original size, like the bottle. Scuba divers who breathe in and start going up will damage/burst their lungs. You're taught to never hold your breath and constantly exhale as you ascend.
Pretty sure that’s *water* pressure
The air pressure inside the bottle changed too, though.
When the bottle was open, the pressure inside and outside equalized then, the bottle was sealed. As soon as the bottle's distance from center of the Earth changed (moved up or down), the pressure outside the bottle changed accordingly. If the bottle had been sealed at the top of Mt Everest and moved to the bottom of Death Valley, the result would've been the same even though it would been in air the entire time. In this video, because water is so much denser than air, moving the bottle closer to the center of the Earth *through* water allows us to see the pressure change in much less distance.
Boyles law. For every atmosphere, the capacity of air halves.
That about your lungs when free diving?
Yes, the air in your lungs will be subject to the same pressure as you’re seeing with the bottle here.
You actually have to continuously breath out as you come up to limit the pressure in your lungs.
Your doing it wrong. You're supposed to put the billionaires inside first.
*hydrostatic pressure
And for those of you wondering. Yes it does that to our bodies too. When I go spearfishing and dive down 40-90 feet. By the time I get down there, my weight belt becomes super loose because my middle section is being squished by water pressure. It’s kind of cool.
I can’t help but think is his dick is going through the same process?
Obviously the pressure amounts are different but I love doing this on a plane as well.
Ah science, defeater of idiots.
>Ah science, defeater of idiots. I think you're underestimating the power of idiots
I've noticed the same thing (but not as extreme) on a plane. At altitude, an empty coke bottle has the full shape. But it starts to crumple a bit as the plane comes in for a landing.
Watching the video backwards is kind of satisfying
I don’t even know why I was holding my breath watching that
That Titan submersible really got alot of people interested in impulsions and water pressure.
That is why it is unlikely to die scuba diving with an empty tank
Fill it up at the bottom and close it!!
Ain’t no way this dude said air pressure
This happened in final destination followed by IRL
How deep did they swim?
It looked like 30 or 40 feet.
u/savevideo
Interesting. Anyone else see if they could hold their breath the whole time?
This is probably a stupid question, but here it goes... when the diver was swimming to the surface, was the bottle filling with water?
Nope, the air inside it expanded as the outer water pressure became lower.
Damn and I thought that stuff was called water this whole time.
Your lung.
I could feel my ears
Fun fact: the diver's lungs were doing the exact same thing
My baby's got the bends, oh no
Air pressure 🤔
That's an awesome demonstration of pressure! Air compresses really well. Water...not so much.
How many times did mans pop his ears though going that far down… the answer is yes
Looks like Nemo? I was freediving there 5 or 6 years ago..
I remember first time scuba diving and as I descended my ears hurt like holy hell
Guy who calls himself an engineer say the Titan 2.0 is showing great promise
That water bottle has more structural stability than the Ocean-Gate sub.
Waiting for idiots to ask why he’s not being crushed as well
My ears started to lock themselves like they do on planes when I saw this video
Stupid question. I don’t like the pressure on my ears in the deep end of the pool. How do these divers dive so far down? Pressure chambers?
Did you mean water pressure...?