Annoying static electricity could power up your phone11/20/2012
Ever tried rubbing your phone in your hair to charge it? Doesn't work ... yet. But Georgia Tech professor Zhong Lin Wang has invented a gizmo that harvests static electricity and converts it into energy that can charge your phone. He uses thin sheets of metal, plastic and the funky-sounding polyethylene terephthalate, and when they touch, like a plastic comb on winter-dry hair, they become charged. Then when they flex, they generate a current that can charge a battery. Easy, right? Wrong. So far Wang's nanogenerator has only managed to convert 10 to 15 percent of that energy into electricity — nowhere near enough to charge your smartphone. But if he gets it right, those little shocks could quickly turn into big bucks. [Source]
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