Powerful Magic: Cell Phones Charge With Ambient ElectricityHow annoying is it to run out of cell phone power when you’re nowhere near a charger? The Nokia Research Center is working on technology that would allow cell phones to draw juice from ambient radio waves, meaning that you’ll never again be without a charge. The ambient electromagnetic radiation that’s already being transmitted from TV, radio and cell phone towers can be converted into electrical current easily enough. It wouldn’t be enough to charge a dead battery quickly, but it would be enough to keep your phone’s battery topped up.
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