The hydraulic clock of Archimedes

The hydraulic clock of Archimedes is held by Kotsanas Museum of Ancient Greek Technology. Museum description: It was a complex hydraulic clock with many automatically moving objects. It consisted of the central storage container which supplied the water. The water went through a smaller container which ensured the stability of the water level (with a conical valve on a float), leading to the outflow nozzle. The supply of the flow was regulated depending on the date, turning the nozzle on a calibrated semicircular disc (so that the hypsometric difference of the nozzle outflow hole and the level of water were altered, consequently, altering the time duration of the hour on the particular day). On the two columns of its façade, two moving rings (and two statuettes) indicated the hours that had been covered and the hours which remained respectively. On each hour, the pupils of the human eyes on a mask changed colour and a spherule fell into another container from the automatic opening of a crow's be The museum record gives place associated: Syracuse, Sicily; maker recorded: Kostas Kotsanas. These details come from the holding museum's own record; how far this object represents a wider collectible type has not yet been independently verified.