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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.
1790 (): Nathan Read invented the tubular boiler and improved cylinder, devising the high-pressure steam engine. 1791 (): Edward Bull makes a seemingly obvious design change by inverting the steam engine directly above the mine pumps, eliminating the large beam used since Newcomen's designs. About 10 of his engines are built in Cornwall.
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]
The 1698 Savery Steam Pump - the first commercially successful steam powered device, built by Thomas Savery [1] The first recorded rudimentary steam engine was the aeolipile mentioned by Vitruvius between 30 and 15 BC and, described by Heron of Alexandria in 1st-century Roman Egypt. [2]
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 ...
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.
Ecology: Ancient Greek philosophers such as Hippocrates and Aristotle were among the first to record observations on natural history. However, they viewed life in terms of essentialism . Early conceptions of ecology, such as a balance and regulation in nature can be traced to Herodotus , who described one of the earliest accounts of mutualism ...
4th century: Simple suspension bridge, independently invented in Pre-Columbian South America, and the Hindu Kush range, of present-day Afghanistan and Pakistan. With Han dynasty travelers noting bridges being constructed from 3 or more vines or 3 ropes. [307] Later bridges constructed utilizing cables of iron chains appeared in Tibet. [308] [309]