A close-up shot of the corroded Antikythera mechanism, an ancient Greek astronomical calculator. The image shows the fragmented bronze device with visible gears and wheels. The greenish-grey patina of corrosion covers the artifact. The mechanism is displayed in a clear acrylic case.

Astronomy Picture from 09/01/2011

The Antikythera Mechanism

Source: https://apod.nasa.gov/apod/ap110109.html


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