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An aeolipile, aeolipyle, or eolipile, from the Greek "Αἰόλου πύλη," lit. ' Aeolus gate ' , also known as a Hero's (or Heron's ) engine , is a simple, bladeless radial steam turbine which spins when the central water container is heated.
Steam ejected tangentially from nozzles caused a pivoted ball to rotate. This suggests that the conversion of steam pressure into mechanical movement was known in Roman Egypt in the 1st century, however, its thermal efficiency was low. Heron also devised a machine that used air heated in an altar fire to displace a quantity of water from a ...
Heron’s aeolipile is considered an early demonstration of the principles of steam power, although its practical applications were limited in ancient times. Image credits: Isabella Thornton #62 ...
1st century AD – Hero of Alexandria describes the Aeolipile, as an example of the power of heated air or water.The device consists of a rotating ball spun by steam jets; it produced little power and had no practical application, but is nevertheless the first known device moved by steam pressure.
Jet engines can be dated back to the invention of the aeolipile around 150 BC. This device used steam power directed through two nozzles so as to cause a sphere to spin rapidly on its axis. [ 1 ] So far as is known, it was not used for supplying mechanical power, and the potential practical applications of this invention were not recognized.
Hero's aeolipile. A number of devices and inventions have been ascribed to Hero, including the following: The aeolipile (a version of which is known as "Hero's engine"), which was a rocket-like reaction engine and the first-recorded steam engine (although Vitruvius mentioned the aeolipile in De Architectura, presumably earlier than Hero). [13]
France has a long history of innovation and scientific discovery, contributing to various fields such as physics, mathematics, engineering, medicine, and the arts. [1] French inventors and scientists have pioneered breakthroughs that shaped the modern world, from the development of photography and the metric system to advancements in aviation ...
A big size reconstruction of Heron's aeolipile in Kotsanas Museum of Ancient Greek Technology, Athens, Greece. As noted, one recorded rudimentary steam-powered engine was the aeolipile described by Hero of Alexandria , a Hellenistic mathematician and engineer in Roman Egypt during the first century AD. [ 8 ]