The Antikythera mechanism has long been treated as a one-off marvel, a relic so far ahead of its time that some doubted ancient artisans could really have built it. Yet as new dives, new simulations, ...

More than 2,000 years ago, Greek artisans built a compact machine of interlocking gears that could track the heavens with a precision that still unsettles modern engineers. The corroded fragments of ...