IBM in atoms was a demonstration by IBM scientists in 1989 of a technology capable of manipulating individual atoms. A scanning tunneling microscope was used to arrange 35 individual xenon atoms on a substrate of chilled crystal of nickel to spell out the three letter company initialism. It was the first time that atoms had been precisely positioned on a flat surface.
https://en.m.wikipedia.org/wiki/File:IBM_in_atoms.gif
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https://en.m.wikipedia.org/wiki/File:IBM_in_atoms.gif
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