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From New Scientist - Online News:
Anyone with an energy-gobbling smartphone knows the pain of having your battery run out while off-grid, but while you can always charge up when you return home, getting power to sensors placed in remote locations is more difficult. Now researchers at the University of Nebraska-Lincoln in the US have come up with a solution - a flying wireless battery mounted on a quadrotor UAV.
Read the whole article and watch the video
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