When large ships sink they create intense vortexes that suck everything down with them.
The Lusitania was a ‘four stack” passenger ship that was sunk by being torpedoed by a German U boat during WWI and it is major reason why the US entered WWI.
The ship sank 18 minutes after it was torpedoed.
Here is the interesting parts.
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It sank in relatively shallow water so as it was sinking it sort of settled/stopped so a number of passengers thought it was safe to stay on the side of hull of the ship. Unfortunately it ended up completely sinking.
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A women on the Lusitania jumped off the ship as the ship sank and she was sucked into one of the exhaust stacks. As she was getting sucked under the ocean a boiler inside the ship exploded and she was shot out of the stack very much like a circus clown cannon and was thrown clear of the wreckage. She was one of the few who survived!