In 1901 sponge divers off the Greek island of Antikythera recovered a corroded lump of bronze that turned out to be a 2,000-year-old hand-cranked computer. It predicted eclipses, tracked the Moon's irregular orbit, and marked the Olympic Games, with no comparable machine appearing for the next 1,400 years. The post The Antikythera mechanism, pulled from a Greek shipwreck in 1901, was a hand-cranked bronze computer that predicted eclipses and tracked the Olympic Games calendar around 100 BC, and