Illuminating Coin-Screw Contraption

Tuesday, June 23rd, 2009 at 12:25:15 PM · Photo Archive/2009/caltech_metal_09

This small metal object may look like a simple coin or screw, but its green light and electronic components reveal that there's more to it. Photographed in 2009 at Caltech, this mysterious machine has sparked curiosity and speculation about its purpose and origins.