[Rusty Heap]

Showing the effects of compression at depth, some submariners played a prank on a group of Marines that was their first ride.

At the surface they'd stretch a length of string tight across the sub interior side to side.

At depth, the string would begin the sag and bow as the hull compressed deeper and deeper. wow.


My old neighbor was a retired Navy Seal. Told stories of exiting a sub while at depth with his stealth team, then walk to and enter a mini sub on the back of the mother ship to go do covert adventures, then land it back on the sub. Cool stories like that.