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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.
A syringe-like device was described by Hero to control the delivery of air or liquids. [17] A stand-alone fountain that operates under self-contained hydro-static energy; now called Heron's fountain. A cart that was powered by a falling weight and strings wrapped around the drive axle. [18] A kind of thermometer has been credited to Hero.
Heron's fountain is a device invented by Heron of Alexandria that consists of a jet of fluid being fed by a reservoir of fluid. The fountain is constructed in such a way that the height of the jet exceeds the height of the fluid in the reservoir, apparently in violation of principles of hydrostatic pressure.
Heron's siphon is not a siphon as it works as a gravity driven pressure pump, [63] [64] at first glance it appears to be a perpetual motion machine but will stop when the air in the priming pump is depleted. In a slightly differently configuration, it is also known as Heron's fountain. [65]
The Fountainhead is a 1943 novel by Russian-American author Ayn Rand, her first major literary success.The novel's protagonist, Howard Roark, is an intransigent young architect who battles against conventional standards and refuses to compromise with an architectural establishment unwilling to accept innovation.
The fountain performs once every half-hour to recorded music, and shoots water to height of 73 meters (240 feet). The fountain also has extreme shooters, not used in every show, which can reach 150 meters (490 feet). The Captain James Cook Memorial Jet in Canberra (1970), 147 meters (482 feet) The Jet d'eau, in Geneva (1951), 140 meters (460 feet)
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This appears to be the same device as modern versions of Heron's Fountain, giving some additional insight as to the original use with a mythical creature, and the general theme in Pneumatica of these devices being magic tricks for temples.