Professor Mike Edmunds of the School of Physics and Astronomy and mathematician Dr Tony Freeth first heard of the Antikythera Mechanism, a clock-like astronomical calculator dating from the second century BC, several years ago. Now they believe they have cracked the centuries-old mystery of how it actually works.

Remnants of a broken wooden and bronze case containing more than 30 gears was found by divers exploring a shipwreck off the island of Antikythera at the turn of the 20th century. Scientists have been trying to reconstruct it ever since. The new research suggests it is more sophisticated than anyone previously thought.