MilliDelta Robot is another tiny robot is gearing up to join the ranks of microsurgeons, but this one is small enough to fit in your coin purse. Inspired by pop-up books and origami, the milliDelta bot measures mere millimetres when unfolded (roughly the size of a one cent coin). But, even at that scale, the miniature helper packs flexible joints and bending, piezoelectric actuators that allow it to work with force, precision, and high speed.

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• Country: USA 
• Company: Harvard University