Following is a movie of the construction of the "World's Smallest OU". This smallest "OU" was constructed from 51 silver atoms on a silver substrate by Ohio University Professor Saw-Wai Hla.

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Following is a movie of the construction of the "World's Smallest Smiley Face". This was also constructed from silver atoms on a silver substrate by Ohio University Professor Saw-Wai Hla.  It had a radius of 18 nm!

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Click here to learn more about how these images are created!