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Tiny Drone Robots Stick to Any Surface

Tiny drones face a major problem: how to carry enough energy to keep flying for extended periods. A team of researchers at Harvard University may have solved this problem by creating tiny drones they call RoboBees, the same weight as a honeybee - 100 milligrams - and only slightly larger. These tiny machines can conserve energe by "perching," or alighting temporarily, on pretty much any surface, just as bees and other insects flit from flit from plant to plant in nature. Such...

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