Antikythera mechanism

This mechanism, discovered in a shipwreck off the Greek island of Antikythera in 1901, is a masterpiece of ancient ingenuity. Dated to around 100 BCE, this bronze device is the oldest known analog computer, designed to calculate astronomical positions and eclipse cycles. It contains at least 30 intricate gears arranged in concentric circles, each tooth perfectly meshed to turn in harmony. Without each gear turning precisely, the mechanism’s ability to track the complex motions of celestial bodies—sun, moon, and planets—would collapse into chaos. Each cog’s rotation was a note in a celestial symphony that rivals today’s technology