How do sunken ships like the titanic not get crushed under the pressure?

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I assume the metal and materials the boats are made of are strong but surely not to withstand the pressure of being 12,000 feet underwater? At the end of the day it’s not like the engineers had to consider holding up to that much pressure in their design right?

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Anonymous 0 Comments

One system (submarine) has differential pressure, like a tire on a car.

The other system (titanic) has equal pressure on all sides, like a tire swing on a tree.

Going deep makes the pressure go up. In the closed system, this difference increases. It’s like adding weight to one side of a scale until it tips. The open system is like balancing a set of scales, so each time I add a weight to the left side, the same weight is added on the right and the difference never increases no matter how many weights I add.

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