"I built each of these machines," the man said, noting, "if I bought them, they'd cost over a quarter-million to buy." ...
ZME Science on MSN
World’s Smallest Programmable Robot Fits on a Fingerprint Ridge and Carries Its Own Computer
Measuring just 200 by 300 by 50 micrometers — smaller than a grain of salt and roughly the size of a single-celled paramecium ...
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