Robot jellyfish sucks up power from the water

Robojelly – a robot jellyfish that feeds on water – could aid in underwater search and rescue operations, say its creators.

Researchers at Virginia Tech and the University of Texas at Dallas built Robojelly from materials known as shape-memory alloys, which return to their original shape when bent. Eight moving segments wrapped in carbon nanotubes and coated with a platinum powder replicate the jellyfish’s natural opening-and-closing method of propulsion.

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