Two independent groups have experimentally demonstrated surface-code quantum error correction—an approach for remedying errors in quantum computations.
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.
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