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Using a laser to wirelessly charge a smartphone safely across a room

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February 20, 2018 by James Urton, University of Washington The wireless charging system created by University of Washington engineers. The charging laser and guard lasers are normally invisible to the human eye, but red beams have been inserted in place of the guard beams for demonstration purposes. Credit: Mark Stone/University of Washington   Although mobile devices such as tablets and smartphones let us communicate, work and access information wirelessly, their batteries …[ seguir leyendo ]

Using a laser to wirelessly charge a smartphone safely across a room

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