It can't be seen with a human eye. It doesn't look anything like C-3PO or R2-D2, or even BB-8. But, nevertheless, it is a robot (all 120nm of it) and its creators from The University of Texas at San Antonio (UTSA) are now world record holders in the Guinness World Records for creating the Smallest Medical Robot.
https://www.sciencedaily.com/releases/2018/08/180828104037.htm
Great Post 😆
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Really interesting blog!
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