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Scoop.it!
A device harvests energy from walking, eliminating the need for batteries or recharging. 
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Scoop.it!
A new magnetic system would recharge electric vehicles wirelessly as they drive along the highway.
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Never get stranded with a dead cell phone again. A promising new technology called Power Felt, a thermoelectric device that converts body heat into an electrical current, soon could create enough juice to make another call simply by touching it.
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A Stanford University research team has designed a high-efficiency charging system that uses magnetic fields to wirelessly transmit large electric currents between metal coils placed several feet apart. The long-term goal of the research is to develop an all-electric highway that wirelessly charges cars and trucks as they cruise down the road.
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