Tiny Robotic Crabs

The world’s smallest remote controlled walking robot, which resembles a crab smaller than a penny, has been developed by engineers at Northwestern University. At just half a millimeter wide, the tiny robots start out as flat as paper before extending out their small legs. The robots are made of malleable alloy and can walk, twist, turn, and jump by utilizing heat from lasers to stay standing. Looking ahead, the robot crabs could be used for minimally invasive surgeries and for repairing machinery.

Image via Northwestern University


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