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Big external pressure, insufficient structural integrity, I thought thats how it went down.
@axeldankwort3142 Says:
Whales overcome air compression in part by storing more dissolved oxygen in their blood. they also seem to have some other mechanisms that we aren't able to explain for dealing with increased blood nitrogen levels.
@frankcastle7299 Says:
Imagine a doctor has sewn your butthole shut and your momma keeps feeding you and feeding you! Eventually the pressure is going to win and it’s going to be a very bad day for your toilet and your bunghole 🫣
@ARNYKATZ Says:
In the future, the hypersonic rush of water that occurs because of a flawed sub design will be known as the Stockton Rush.
@EvilSearchEngine Says:
Actual science for science's sake.
@StevenStyczinski-sy8cj Says:
Absolutely great explanation! I have been waiting over a year for this. Could have mentioned more about the compression ignition dieseling affect of that water trying to decelerate from Mach 2 to zero in micro seconds. And being under that SUPER PILE DRIVER is not good for human flesh.
@MASmeinezeit Says:
So the Titan crew got literally crushed by water I assume.
@MASmeinezeit Says:
14:52 Why do i need 10 m² to fill 1 m² of air?
Sorry for the naive question I just try to follow this :)
@johnnyg3166 Says:
Dude. Wrong. The weight of the water creates water pressure if the pressure inside the sub is less. And it is said to be about 400 atmospheres at that depth. Ever see a pressure washer? Stick your hand in the stream at 60 psi and watch it strip your hand to the bone. The water pressure would have disintegrated them.
@Jorden.Florence Says:
UP DATE! Well Thunderf00t got it wrong again
@thenwhoami Says:
How can you be this wrong and keep a straight face? Embarrassing.
@PartanBree Says:
I'm puzzled by this, in that you seem to be arguing that compression of water is the only thing that creates a high speed leak, and that if the water were not compressible, the speed of the leak would only be "freefall speed". But even a metre difference in pressure head will make an appreciable difference in the speed at which water leaks. I know that there will be some compression even at 1m, but it's surely so small as to have a negligible effect. Pressure, or to be more precise, the pressure difference, does increase the speed of flow. At least that's what Mr. Bernoulli taught me.
@kellymoses8566 Says:
Molecular dynamic simulations are so neat.
@katkit4281 Says:
I use to like your videos and respected you. However that respect is all gone now since you are unable to admit that all the experts (people who do know more than you on this particular topic) were correct while you were wrong. The debris found shows it was an implosion and your hypothesis was false. When wrong you don't make a new video admitting you were wrong or take down this video but just ignore everything insisting you are still correct. You are intelligent but definitely suffering from the Dunning Kruger effect on this issue and your ego cannot admit it. Basically this video and your response to being wrong shows how much you are like Elon Musk, the guy can never admit to being wrong either because of his massive ego. Congrats.
@vincent21212 Says:
semantics, my guy.
@ogkillingpunchline Says:
Yeah, I still think it was a suicide pact. Even if not everybody was in. It was suicide.
@6teeth318-w5k Says:
Impressive, i mean, implode.
@byungchanlee2131 Says:
If you have a hole between 1000 bar on one side and 1 bar on the other, the speed of water flowing through that hole would be about 447 m/s (about 1.3 times the speed of sound) based on the inviscid flow assumption. In other words, the amount of mechanical energy stored in the form of pressure (1000 bar) is equivalent to the kinetic energy with 4447 m/s. If the hull fails all at the same time, the water will rush in from all directions at 447 m/s and kill anyone inside instantly.
@ChadFarthouse-h8r Says:
Talk about over analyzing .
@z3t4m4n Says:
Water at that pressure do not act like a rigid falling at g, at that pressure is somewhat elastic; It acts like a compressed spring when its base fails and colapses, expanding very quick. The sub was crushed at a speed very close to the speed of sound on water IMHO.
@erebys21 Says:
As a cherry on top of the deathcake, wouldn't the higher pressure water rush into the 1atm water, dealing even more damage to the sub?
@FuS3D86 Says:
Is the solution for melting ice caps, digging a big hole?
@register1430 Says:
When this originally happened I saw the joint fitting clip and knew right away, hand mixing an adhesive? Under these extreme conditions? And NO bolting of the metal to the carbon? Home depot Solution.
@MrBusunglueck Says:
LOL nice eastereggs @15:16
@carlosvasquez9890 Says:
This guy is the personification of Kruger Dunning effect 😅
@ArchangelExile Says:
15:11. 😏🍆
@autopoiesis1011 Says:
Rethinking the accident into an innovation:
Deep sea thermal vents (high pressure high heat) are a great combo for curing carbon fiber resin epoxy.
Only cost effective for mega size manufacturing.
Requires a powdered heat activated resin epoxy with no solvent ; to prevent curing until it is at the thermal vent (this technique requires a "boiling bag" containing nothing that off-gases).
Requires a cage superstructure to mount: retrieval cables, water circulation screws (for even heating). Special compression fans to force water into internal void areas (only enough that the internal pressure is marginally greater than the external during curing).
This could only be economical for mega size manufacturing in which the requirements for this technique are less expensive than a standard mega size heat chamber and pressuring. In standard technique Pressure is achieved using vacuum and or mechanical press. A standard mega size curing room has mega size costs. This could be a way to reduce cost on big projects.
Edit: https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://www.nationalgeographic.com/adventure/article/hydrothermal-vents-discovered-azores-science-environment&ved=2ahUKEwjXlv3vx6CCAxUyv4kEHZnsBH0QFnoECA4QAQ&usg=AOvVaw1Jm6aJYMLuODMdopGTz8Iw
Edit2: duh it's not just hot high pressure water, it is also super acidity. 🤦
Wouldn't be economic because making everything acid resistant would be too costly. There is also disturbing or altering the natural environment of the fascinating, rare islands of life that thrive there. I have wondered about how the species travel to colonize other new deep sea vents. Do the eggs of these animals travel randomly on currents and or lay dormant all across the deep ocean, or do adults travel to new vents guided by the smell?
@codyhughes4472 Says:
These animations are pretty much pointless haha
@spockbetter Says:
why didn't they just dodge when the hull compressed? are they stupid?
@PanicOregon Says:
the visualization at 9:36 wasn't that hard to spot, it's pretty easy to spot when you're checking the edges instead of looking at the entire object.
@resiakanam8502 Says:
Great video actually
@d7home2129 Says:
In your falling tube demonstration, you made a false assumption. You assumed that all the ater in the column is going to have kinetic energy after losing the potential energy( by "falling"). This is wrong, almost all the potential energy lost from the column is going to be transferred as kinetic energy to the escaping water. Which will have a tremendous speed not just freefall. It seems like you have never seen a faucet. Do you think the water in a faucet is merely free falling? ( Admittedly, the celocity of the escaping water is the same as if the water droplets have free fallen the whole distance from ocean surface to the submarine depth not the velocity of free falling the couple of meters inside)
Please refer to Bernoulli principle from high school physics.
P1(surface pressure)= P2(air within submarine)=1 atm
v1=0, v2=?
h1=0
h2=-5000m (I am not sure)
Apply values to equation
v2=sqrt(2gh) =sqrt(100000)=316m/s not slow
@WatchTheTreesGrow Says:
Size matters. The 3km water column is ~0.5% compressed (15m) by its own weight.
Imagine that spring let go into the hull.
The pressure force does not have to accelerate the entire water column in an instant. Hence analogy with different sized falling solid objects is leading to wrong conclusions.
@andrewatwood4711 Says:
Very informative now it makes sense thank you😊
@adairjanney7109 Says:
Water isnt incompressible, see footage of nuclear bomb test that create blackbody by compressing the water
@dominikmuller4477 Says:
whales do this by not having any air with them when they dive. They exhale before diving, then just let their lungs collapse, and store all the oxygen they need in their muscles and blood
@SandyRiverBlue Says:
Could have been handled with a brief explanation of what decompression is.
@TopazBadger6550 Says:
Excellent work!
@green-lean-espeon Says:
So, basically: Water bullet.
@berrodude Says:
I loved this video, but I'm not sure there are many people that don't realise these people died by being smacked with a butt load of mass at speed
@LukeDeveraux Says:
We don't deserve Thunderfoot.
But we got him anyways.
Thanks brother.
Love your content. 👍💪🔥
@thomasetavard2031 Says:
Your description of whales and their lungs getting compressed is not exactly correct, in order for this to be the case the flesh and bones of the whales would get compressed as well. This is not the case, they actually behave more like the sub with thick walls you describe. Sure, some compression occurs but not nearly as much as you say. Humans are not nearly as big as whales therefore we do not have bones as big and big volumes of flesh to help us go deep but whales do.
@TaserFish-qn2xy Says:
Cool video and visualisations. It made me understand this better than any other video.
But I think there is a minor mistake.
The part of incompressible water filling the gap at freefall speeds regardless of depth seems fishy to me. Let me explain why.
The gap would fill at freefall speeds if the water only fell from the top of the bubble.
But why would it ?
The water can flow in from any which side. I think this, the geometry of the problem makes a big difference. It's 3d, not 1d.
While I have not done any simulation or calculations, intuitively I would expect a roughly radial inflow.
But I think the big difference would still be that instead of a shockwave of decompression that shoots water into the bubble at crazy speeds from the get go, the incompressible scenario would start the bubble "front" static and have it slowly accelerate inwards until it's fully collapsed.
But if I had to guess, even the incompressible case is much faster than free fall.
@anoriolkoyt Says:
I find these "semantical" discussions (such as voltage or current killing you) are limited because in the end, its still the transformation of energy that kills you. Here, its potential energy (pressure) converted to kinetic energy (water movement). Part of the kinetic energy breaks the bonding energies of the molecules in your body while another part is being converted to heat. An conservation of energyy analysis would yield more insight, I think.
@leoa4c Says:
Sure, if, theoretically, you fill the lungs with a liquid of the same density as the water, and which is capable of transferring oxygen into the bloodstream, the lung issue will be solved (even if it crushes the spine in the process).
But what about the other orifices? What about the pressure delta between the water and the cranial cavity? What about the stomach, the intestines, reproductive organs, the ears, the eyes?
Water would rush in from everywhere.
I know that you are trying to put the point across that pressure differentials are what matter, that pressure is relative. But using a human being in this thought experiment was not ideal.
@DavidGS66 Says:
At 16:12, I don't believe there's a fine line with water at 370 atm on 1 side & 1 atm on other side in a wide area around the sub. Maybe inside the sub at point of rupture & a pressure gradient would form everywhere else until implosion is over & P becomes uniform again. How, by combination of decompression & enough water to fill sub at 370 atm falling & recompressing all the way from the surface. I think Bernoulli equation has issue of compressibility built into it by (ro×g×h)1 - (ro×g×h)2 because ro 2 is at 370m. Extremely complicated, so computer simulations will probably just assume constant P of 370 atm outside sub. Pressure = F/A, so water will fall faster because of Fg + (P×A=Fp)
@Kibernautas Says:
Thunderfoot, plastic is not the same as plaster.
Care to apologise?
@c0r3s4v3 Says:
the most expensive and instantanious [Will it Blend?] experiment 💥🩸
@genzen6129 Says:
So the wieght of the water compresses the water below causing an immense pressure on the sub that gives way, exposing 1 atmosphere to 400. Isnt that what everyone was already saying just in a less scientific way lol?
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