Archimedes Screw

Archimedes Screw is a device to transport water from a lower level to a higher. The long screw is enclosed inside a tube of plexiglass. Each time you turn one revolution, water is lifted up to a new level and can eventually run out of the upper end of the screw.

This device was originally built to pump water out of boats. Today it is used to pump seed out of high silos, for example.

Archimedes of Syracuse was a Greek mathematician and inventor who lived around 250 years BCE.