Pump action

Wright, Martin
October 2012
Green Futures;Oct2012 Supplement, p12
The article describes the ram pump, a device invented by hot air balloon inventors, the Montgolfier Brothers, that can transfer huge quantities of water uphill without the use of an external power source. They were used in the early 19th century before they were replaced by electric powered pumps. British company Papa Pumps is said to be reviving the ram pumps to be used for flood control and large-scale water transfer.


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