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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 the fluid to be pumped. The main advantage of this type of pump is that it prevents pump cavitation, a problem associated with a high elevation difference between the pump ...
Drinking fountain. A typical drinking fountain. A drinking fountain, also called a water fountain or water bubbler, is a fountain designed to provide drinking water. [1][2] It consists of a basin with either continuously running water or a tap. The drinker bends down to the stream of water and swallows water directly from the stream.
In modern fountains a water filter, typically a media filter, removes particles from the water—this filter requires its own pump to force water through it and plumbing to remove the water from the pool to the filter and then back to the pool. The water may need chlorination or anti-algal treatment, or may use biological methods to filter and ...
The Fountain of Prometheus, with sculpture by Paul Manship, built at Rockefeller Center in New York City in 1933, was the first American fountain in the Art-Deco style. After World War II, fountains in the United States became more varied in form. Some, like the Vaillancourt Fountain in San Francisco (1971), were pure works of sculpture.
Retired modern submersible Star III of Scripps Institution of Oceanography. A submersible is an underwater vehicle which needs to be transported and supported by a larger watercraft or platform. This distinguishes submersibles from submarines, which are self-supporting and capable of prolonged independent operation at sea.
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. Various versions of Heron's fountain are ...
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