Thursday, February 7, 2008

First Video of Electricity-Generating Knee Brace

A knee brace that generates enough electricity to power 10 cellphones was demonstrated by scientists recently. It harvests the energy of a person's knee braking after taking a step, the way a hybrid car's brakes collect energy to charge its battery. The device only weighs 3.5 pounds, and the creators have several practical uses in mind.

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