One of the artefacts ranked among the Wonders of the Ancient World is the Antikythera Mechanism, the oldest extant complex geared device, also described as the first analogue computer. Its construction was variously estimated to be about 87 BC; or…
The text describes how the Antikythera Mechanism simulates the movements of the system Moon-Earth-Sun (i.e. the elliptical orbit of the Moon around the Earth)