The small robotic crab can walk, bend, twist, turn and jump The smallest-ever remote-controlled walking robot has been created by Northwestern University engineers, and it takes the shape of a tiny, cute peekytoe crab. The tiny crabs, which are about half a millimeter wide, can bend, twist, craw
A magnified view of the tiny crab robot, standing on the edge of a coin. Credit: Northwestern UniversityThe smallest-ever remote-controlled walking robot has been created byThe tiny crabs, which are about half a millimeter wide, can bend, twist, crawl, walk, turn, and even leap. Additionally, the scientists created millimeter-sized robots that resemble inchworms, crickets, and beetles.
The crab, which is smaller than a flea, is not propelled by sophisticated machinery, hydraulics, or electricity. Instead, the elastic resilience of its body is where its power rests. The researchers employed a shape-memorymaterial to build the robot, which transforms to its “remembered” shape when heated. In this case, the scientists heated the robot quickly at several targeted spots all over its body using a scanned laser beam.
To manufacture such a tiny critter, Rogers and Huang turned to a technique they introduced eight years ago — a pop-up assembly method inspired by a child’s pop-up book.
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