This Shipwreck Shows That Submarines Used To Be Hand-Powered

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When the tide goes out at Pearl Island, a strange shape rises out of the water. It's the barnacle-encrusted hull of the Sub Marine Explorer, which searched the surrounding ocean for pearls from 1865 to 1869. It somewhat resembles modern-day submarines, but this craft was powered by hand, and boasted advanced features (for the time) that allowed the pilot to reach into the ocean water while staying afloat.

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This Island Is Hiding The Wreck Of An Incredible Hand-Powered Submarine

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