Tambour

Archimedes Screw

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Courtesy of Bruce Salters, W.P. Law Inc.

Year: 250 BC

Type: Archimedes Screw

Typical use: Agriculture

While visiting Egypt the Greek scholar Archimedes created this device which consisted of a screw inside a hollow tube.

The screw was turned and as the bottom end of the screw rotated, it scooped up water. The water traveled up the length of the screw until it poured out the top of the tube.

Today the principal is used in transporting granular materials such as plastic granules used in injection molding and in moving cereal grains.

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