Antikythera mechanism

 

The Antikythera mechanism is an ancient mechanical computer designed to calculate astronomical positions. It was recovered in 1900–1901 from the Antikythera wreck.  Its time of construction is estimated between 150 and 100 BC.

How were so many complex gears machined?

 

Part of the surviving Antikythera orrery mechanism

Machined gears over 2000 years old?

 

 

 

 

 

 

 

 

2007 reproduction of the Antikythera mechanism

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