The Antikythera Mechanism Is 2,000 Years Old — And the Technology to Build It Vanished for 1,500 Years. That Doesn't Happen by Accident.
In 1901, a group of Greek sponge divers pulled a corroded lump of bronze from a shipwreck off the coast of the island Antikythera. Coordinates: approximately 35°52′N, 23°18′E, depth about 45 meters. The wreck was dated to roughly 70-60 BCE. Nobody cared about the bronze lump. They were looking for marble statues. It sat in the National Archaeological Museum of Athens for decades. A curiosity. A footnote. Until 1951, when British science historian Derek J. de Solla Price looked at it with X-rays and realized he was staring at the most impossible object in the history of archaeology. The Antikythera Mechanism is a hand-powered analog computer. It predicted astronomical positions, eclipses, and calendar cycles. It tracked the movements of the Sun, Moon, and five known planets. It even predicted the dates of the ancient Olympic Games. It was built over 2,000 years ago. And nothing — nothing — of comparable mechanical complexity would appear again in the historical record until...