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Heron's fountain is a hydraulic machine invented by the 1st century AD inventor, mathematician, and physicist Heron (or Hero) of Alexandria. [ 1 ] Heron studied the pressure of air and steam, described the first steam engine , and built toys that would spurt water, one of them known as Heron's fountain.
English: Diagram of a functioning Heron's fountain. Diagram made with Mathematica 12. Diagram made with Mathematica 12. Français : Schéma de fonctionnement d'une fontaine de Héron.
A hand pump opens access to deeper groundwater that is often not polluted and also improves the safety of a well by protecting the water source from contaminated buckets. Pumps such as the Afridev pump are designed to be cheap to build and install, and easy to maintain with simple parts.
Diagrams and Explanations of the Wonderful Machines of the Far West (Chinese: Yuǎn xī qí qì túshuō lù zuì, 遠西奇器圖說錄最, often abridged as Qí qì túshuō, 奇器圖說) was an encyclopedia of Western mechanical devices translated into Chinese by the Jesuit Johann Schreck (1576-1630), and the Chinese scholar Wang Zheng (王徵 1571–1644). [1]
A diagram of a pumpjack. A pumpjack is the overground drive for a reciprocating piston pump in an oil well. [1]It is used to mechanically lift liquid out of the well if there is not enough bottom hole pressure for the liquid to flow all the way to the surface.
The current pump was installed in 1945, replacing earlier versions that date to the 1930s. [3] [5] As early as 1957, the pump drew press attention for its popularity. [5]A 1950s Forest Preserve superintendent noted that the well was so well-used that "when the handle is broken, everyone in the [office] knows about it within an hour". [5]
By the end of the 19th century, as indoor plumbing became the main source of drinking water, urban fountains became purely decorative. Mechanical pumps replaced gravity and allowed fountains to recycle water and to force it high into the air. The Jet d'Eau in Lake Geneva, built in 1951, shoots water 140 metres (460 ft) in the air.
The original fountain after German bombing in August 1942, photographed by Emmanuil Yevzerikhin. The original fountain in 1943, photographed by Sergey Strunnikov [Wikidata]. The Barmaley (Russian: Бармалей) is an informal name of a fountain in the city of Volgograd (formerly known as Stalingrad).