The Antikythera Mechanism

The Antikythera_mechanism is the oldest known geared mechanism.

It was used to compute astronomical positions of stars in the sky, eclipses dates, lunar phases… as known by the ancient Greeks…

 

Chris from Clickspring already entertained us by crafting a beautiful clock mechanism and a beautiful gyroscope. This time he is showing us how he is building such a device trying to imagine how the ancient resolved the technical challenges back then.