By Leah Crane
We may have figured out the date from which an ancient device often described as the first computer began its calculations. This device, called the Antikythera mechanism, was built sometime between the years 200 BC and 60 BC, and it was used to track time and predict the motions of celestial bodies.
A spiral shape inset in the back of the mechanism depicts a 223-month cycle called a Saros, which is based on the amount of time it takes for the sun, moon and …
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