In 1997, the Cornell Chronicle announced: “The world’s smallest guitar — carved out of crystalline silicon and no larger than a single cell — has been made at Cornell University to demonstrate a new technology that could have a variety of uses in fiber optics, displays, sensors and electronics.”
Invented by Dustin W. Carr, the so-called “nanoguitar” measured 10 micrometers long–roughly the size of your average red blood cell. And it had six strings, each “about 50 nanometers wide, the width of about 100 atoms.”
According to The Guardian, the vintage 1997 nanoguitar was actually never played.
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