
A Computer From Ancient Greece
A corroded lump pulled from a shipwreck turned out to be the oldest known analog computer. The Antikythera mechanism was built in ancient Greece and could model the sky with gears you turned by hand.Antikythera Mechanism: Ancient Greece's Computer

It Predicted the Future
Turn its small crank, and bronze gears tracked the Sun, Moon, eclipses, and calendar cycles. It could predict eclipses decades ahead and follow a four-year cycle of athletic games.Antikythera Mechanism: Ancient Greece's Computer