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Microscopic windmills (video)
Portable chargers solar already used almost everywhere, but other sources of “clean” energy have not received such a distribution. Decided to rectify the situation, researchers from the University of Texas, created microscopic windmills, having a size of only 1.8 mm at the widest part. Their blades are made of nickel, so can withstand a fairly strong wind gusts. Efficiency of the invention is not specified, but the system of dozens of similar devices can be used for charging, for example, a smartphone.
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