such as those used in the construction of the Antikythera Mechanism, which [Chris] has been rebuilding for the past years, using only period-correct tools. He’s learned a lot about the mechanism ...

The Antikythera Mechanism is a mysterious ancient device used to calculate lunar cycles, planet motions, and more. Over 2,000-years-old, it was far more advanced than any other technology of its time.

And yet, they built. Granted, not every artifact was as complex as the Antikythera mechanism, but still, this ancient astronomical computer exists, and must have come from someone’s workshop.

The mechanism now appears to have been a device for calculating the motions of stars and planets In 1901 divers working off the isle of Antikythera found the remains of a clocklike mechanism 2,000 ...

The abacus, a simple counting aid, may have been invented in Babylonia (now Iraq) in the fourth century B.C. The Antikythera mechanism, used for registering and predicting the motion of the stars ...

In 1900, a storm blew a boatload of sponge divers off course and forced them to take shelter by the tiny Mediterranean island of Antikythera ... some kind of intricate mechanism.