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“Micromechatronics.”
“…Seiko Epson Corp. has developed a micro robot weighing just 8.9 grams that can fly. …The “Micro Flying Robot” gains levitation by the application of two contra-rotating propellers powered by four 7x2x1-mm sized ultrasonic motors. The motors were originally developed for wristwatches. ”
I want one for the cats!
