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Smallest flying device ever invented just the size of a gain of rice
Scientists at Northwestern University have invented a flying machine the size of a grain of rice. It features a microchip but no motor and flies like a sycamore seed. It could transform how scientists track airborne diseases and air pollution.
βhttps://www.dailymail.com/video/sciencetech/video-2508573/Video-Smallest-flying-device-invented-just-size-gain-rice.html
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