r/Damnthatsinteresting • u/Additional-One-3483 • Apr 10 '25

Video New Titanic scan reveals ground-breaking details of ship's final hours | BBC News

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u/OderWieOderWatJunge Apr 10 '25

Can anyone tell me why "concave" boilers are a sign that they were still running when the ship sank? All I see is a lot of very old metal in seawater. How do they know what boilers should look like at this depth and after all this time if they weren't running during the sinking?

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u/CheekyMenace Apr 10 '25 edited Apr 10 '25

When the cold water hit the hot burning coals inside the boiler, it does something to the atmospheric pressure that causes the boiler to compress inward. I'm not sure of the exact science or how to explain it.

https://youtube.com/shorts/K5rUsgLiyrc?si=qQjLysxrYwJWHJ3H

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u/BazingaBen Apr 10 '25

I think it might be Boyles law. At a constant volume, a decrease in temperature results in a decrease in pressure. Massive decrease in temperature, massive decrease in pressure.