More than a hundred years ago an extraordinary mechanism was found by sponge divers at the bottom of the sea near the island of Antikythera. It astonished the whole international community of experts on the ancient world. Was it an astrolabe? Was it an orrery or an astronomical clock? Or something else?
Digital and solid models of the Antikythera Mechanism.
An extensive bibliography about the Antikythera Mechanism and related ancient astronomy and technology.