Antikythera Mechanism is a mechanical model of the positions of celestial bodies. What’s remarkable is the complexity of the device and it’s ability to predict astronomical events—it’s essentially a very old analog computer.
It was built around 100 BC and re-discovered in 1901. Fragments were missing, which made reconstruction difficult. The back was recreated, but the front gears held significantly fewer clues. A recent paper published in Nature reveals an accurate recreation.
- The Antikythera Mechanism is an example of a deep time model, capable of showing future events that would be difficult to conceive.