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Free Electricity from Nano Generators

Today's portable electronics (except for self-winding watches and crank radios) depend on batteries for power. Now researchers have demonstrated that easy-to-make, inexpensive nanowires can harvest mechanical energy, possibly leading to such advances as medical implants that run on electricity generated from pulsing blood vessels and cell phones powered by nanowires in the soles of shoes.
Technology Review: Free Electricity from Nano Generators

energy, kinetics