re: YT video of a scale model of carbon fiber implosion.

quote:

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9800 is 4410 psig. Just divide depth in feet by 2.3106 and that is your pressure in fresh water. Then multiply by 1.04 for saltwater.

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Right, there are some ways we can 'sharpen our pencils' a bit. I was (am) unsure whether the salinity / density of seawater is constant to those depths. And the density of water varies slightly with temperature (and temperature at depth is substantially lower than surface water temperature). And you say psig instead of psi--presumably we need to add the surface atmospheric pressure i.e. 14.7 psi or so.

But that's probably all in the realm of false precision because AFAIK we don't really know precisely how deep Titan was at the final catastrophic failure. Changing the assumed depth within the stated / assumed ranges affects the pressure substantially more than this stuff.