THE SCREW OF ARCHIMEDES
Archimedes of Syracuse, when he was in Egypt, invented a machine for pumping
bilge water out of the holds of ships. . . . A curious
model of such an instrument, probably of the late Ptolemaic period, has been
found in Lower Egypt. It consists of a terra-cotta cylinder with a screw inside
it, 10 inches long and 4-1/2 inches in diameter.