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One of the standout innovations coming out of this sector is a miniature robot developed by scientists at the University of Berkeley in the United States. Measuring just 9mm in width and weighing an astonishing 21mg, this small robot is designed to fly. Its ability to soar is inspired by bees and drones, employing an innovative magnetic system. Two microscopic wings powered by magnetic fields allow this tiny robot to spin its propeller at high speeds, achieving lift and even hovering mid-air.