Greek Mathematician Heron of Alexandria Documentary - World Documentary Channel

Hero of Alexandria was a Greek mathematician and also engineer who was active in his native city of Alexandria, Roman Egypt. He is considered the best experimenter of antiquity and his work is representative of the Hellenistic scientific tradition.
Hero posted a well recognized description of a steam-powered device called an aeolipile (occasionally called a "Hero engine"). Some of his suggestions were acquired from the works of Ctesibius.

Greek Mathematician Heron of Alexandria Documentary

Much of Hero's original writings and also styles have been lost, but several of his jobs were preserved in Arabic manuscripts.
It is virtually specific that Hero showed at the Musaeum which consisted of the well-known Library of Alexandria, since a lot of his writings show up as lecture notes for courses in maths, mechanics, physics, as well as pneumatics. The area was not formalized until the twentieth century, it is assumed that the work of Hero, his computerized devices in specific, represents some of the very first formal research right into cybernetics.
Hero explained the building of the aeolipile (a version which is called Hero's engine) which was a rocket-like reaction engine as well as the first-recorded steam engine (although Vitruvius stated the aeolipile in De Architectura some 100 years earlier compared to Hero). It was created nearly two centuries just before the commercial change. An additional engine made use of air from a closed chamber warmed by a church fire to displace water from a closed vessel; the water was accumulated and also its weight, drawing on a rope, opened temple doors. Some chroniclers have actually merged both developments to claim that the aeolipile can beneficial job.