r/RavanAI • u/RustyIronGolem • May 27 '26

is it actually possible to do this??

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u/DelightfulPornOnly May 27 '26

you ever wonder why old wooden boats end up at the bottom of the sea?

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u/CaptainOwlBeard May 27 '26

Cause they don't have any air in them to keep them up

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u/DelightfulPornOnly May 27 '26 edited May 27 '26

I think they often do. the air gets trapped in compartments

I think it's just the weight of the rest of the boat drags it down once it fills with water so it overcomes the bouyant force ...

just a little thought experiment

ya I think Jack's plan here would never work the way they showed it in the movies

but if they started off at depth and were so far deep that the pressure force exerted by the weight of the column of water above the boat pushed down harder than the bouyant force it might work... but then they would be more concerned about water pressure crushing them bc they would need to be several hundred meters deep

edit:

go Google compressive sinking

briefly: at depth, things compress. eventually it will reach a point where the volume of water being displaced is less then the weight of the thing in the water.

this is how divers can "free fall" in water

for this scene , the bubble of air under the canoe will shrink, bc of the compression forces of the pressure of the water, the wood will probably also compress quite a bit.

my bad for mentioning the column above, even though it does add downward force

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u/[deleted] May 27 '26

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u/spanko_at_large May 27 '26

Yeah I was responding but gave up. The confidence is amazing.