02.01.2014 01:05 Uhr, Quelle: Engadget

Watch an ultrasonic array move objects in 3D space (video)

Ultrasonic levitation has been possible for awhile, but it's not very practical when objects must typically hover along a single axis. University of Tokyo researchers Yoichi Ochiai, Takayuki Hoshi and Jun Rekimoto have cleared this hurdle with an

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