Engineers building robotic fin for submarines

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A bluegill sunfish swims in an MIT laboratory tank near a prototype of a robotic fin designed with the fishs fin as a guide. Photo Donna Coveney
A bluegill sunfish swims in an MIT laboratory tank near a prototype of a robotic fin designed with the fish's fin as a guide. Photo / Donna Coveney

Inspired by the efficient swimming motion of the bluegill sunfish, MIT researchers are building a mechanical fin that could one day propel robotic submarines.


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