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I’ve attached an image here, to further illustrate the scenario. Imagine that the wreck is at the bottom of the Marianas trench, 10km underwater.
Would jumping into the water kill you from the pressure? Or would it only kill you if you swam to where there is no cover on the right side of the wreckage?
In: Physics
You are perfectly fine to jump into that water pressure is not going to kill.
The pressure in the air pocket is already at the same pressure as the water.
This is actually something called a moon pool that t saturation divers use. They don’t have an airlock on the bottom of the ocean. Just a hole in the floor. The air pressure of the capsule keeps the water out.
What will kill you at depth is:
– wrong air mix. You can’t just compress regular air. Eventually the absolute amount of O2 becomes toxic. You can only add N2 to a point as that eventually also becomes toxic. You can then add an inert gas such as helium but that also has issues that need to be adjusted for.
– temperature, it is damn cold down there.
– the bends, when you go to ascend to the surface you have to do it slowly. As you have a bone of dissolved gasses in all your tissues, come up too quickly and it bubbles out. Think about cracking a 2L of Pepsi. Similar to that. So you have to slowly lower the pressure and let the gasses out slowly.
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