this post was submitted on 30 Jun 2023
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Explain Like I'm Five

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What way did the Titan submersible implode? (self.explainlikeimfive)
submitted 1 year ago by lorcster123 to c/explainlikeimfive
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How fast did the people in it die?

Of course once the sub filled with water they would die instantly because it would reach insane pressures (300-400 ATM or 5800 PSI)

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[–] MrRambunctious 36 points 1 year ago (26 children)

Less than 4 milliseconds. They didn’t feel a thing.

[–] ndr 4 points 1 year ago (2 children)

How did you get this number?

[–] [email protected] 6 points 1 year ago

Physics and math. J/k. I’ve seen similar numbers thrown about. Here is a link to a Quora question What happens to the human body when a submarine implodes from 2 years ago that may be of interest.

When a submarine hull collapses, it moves inward at about 1,500 miles per hour - that’s 2,200 feet per second. A modern nuclear submarine’s hull radius is about 20 feet. So the time required for complete collapse is 20 / 2,200 seconds = about 1 millisecond.

A human brain responds instinctually to stimulus at about 25 milliseconds. Human rational response (sense→reason→act) is at best 150 milliseconds.

The air inside a sub has a fairly high concentration of hydrocarbon vapors. When the hull collapses it behaves like a very large piston on a very large Diesel engine. The air auto-ignites and an explosion follows the initial rapid implosion. Large blobs of fat (that would be humans) incinerate and are turned to ash and dust quicker than you can blink your eye.

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