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Thomas Savery (/ ˈ s eɪ v ər i /; c. 1650 – 15 May 1715) was an English inventor and engineer.He invented the first commercially used steam-powered device, a steam pump [1] which is often referred to as the "Savery engine".
A 0.75 HP bore-well submersible pump which had been used to pump groundwater One style of submersible pump for industrial use. Outlet pipe and electrical cable not connected. A submersible pump (or electric submersible pump (ESP) is a device which has a hermetically sealed motor close-coupled to the pump body. The whole assembly is submerged in ...
1883: The practice of Eugenics developed by Sir Francis Galton (1822–1911), applying his half-cousin Charles Darwin's theory of evolution to humans. [148] 1953: Double-helix structure of DNA determined by Englishman Francis Crick (1906–2004) [149] and American James Watson. Crick was a pioneer in the field of molecular biology.
Cornelis Jacobszoon Drebbel [1] (Dutch pronunciation: [kɔrˈneːlɪ ˈɕaːkɔpsoːn ˈdrɛbəl]; [a] 1572 – 7 November 1633) was a Dutch engineer and inventor. He was the builder of the first operational submarine in 1620 and an innovator who contributed to the development of measurement and control systems, optics and chemistry.
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.
The corporate history of Goulds Pumps began in Seneca Falls, New York in 1848, when Seabury S. Gould purchased the interests of Edward Mynderse and H.C. Silsby in Downs, Mynderse & Co., a pump making business which had started up in 1840. The company, known as Downs & Company until 1869, cast and assembled the world's first all-metal pump in 1849.
A spiral pump, sometimes called a Wirz pump or incorrectly Wirtz pump, is a low lift pump which is composed of a long piece of metal plating, which is wound into a coil and sealed at the top and back extremities so as to resemble a cylinder. The outer cavity serves as the inlet, while the inner (partial) tube serves as the outlet.
Hydraulics and other studies [1] An open channel, with a uniform depth. Open-channel hydraulics deals with uniform and non-uniform streams. Illustration of hydraulic and hydrostatic, from the "Table of Hydraulics and Hydrostatics", from Cyclopædia, or an Universal Dictionary of Arts and Sciences, edited by Ephraim Chambers, 1728, Vol. 1