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Hero of Alexandria (/ ˈ h ɪər oʊ /; Ancient Greek: Ἥρων [a] ὁ Ἀλεξανδρεύς, Hērōn hò Alexandreús, also known as Heron of Alexandria / ˈ h ɛr ən /; probably 1st or 2nd century AD) was a Greek mathematician and engineer who was active in Alexandria in Egypt during the Roman era.
Location of Roanoke in Virginia. This is a list of the National Register of Historic Places listings in Roanoke, Virginia. This is intended to be a complete list of the properties and districts on the National Register of Historic Places in the independent city of Roanoke, Virginia, United States. The locations of National Register properties ...
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.
Wasena Historic District is a national historic district located in the Wasena neighborhood of Roanoke, Virginia. It encompasses 574 contributing buildings, 1 contributing site, 3 contributing structures, and 3 contributing objects. It is a primarily residential district with single-family dwellings.
The show's theme was that many inventions which are thought to be modern have ancient roots or in some cases may have been lost and then reinvented. The program was a follow-up to a special originally broadcast in 2005 which focused on technologies from the Ancient Roman era such as the Antikythera mechanism and inventors such as Heron of ...
The American Viscose Plant Historic District is an industrial park and historic district located in Roanoke, Virginia. The site is the location of the former American Viscose Corporation rayon processing plant that once employed over 5,000 and for a time was reportedly the largest rayon producing mill in the world. The plant's construction ...
Washington Park is a neighborhood located in central Roanoke, Virginia, that initially developed in the 1920s as an early Roanoke suburb It borders the neighborhoods of Roundhill on the north and Williamson Road on the north and east, Gainsboro and Harrison on the south, and Melrose-Rugby on the west. [ 1 ]
Southwest Historic District is a national historic district located at Roanoke, Virginia. It encompasses 1,547 contributing buildings constructed between 1882 and 1930 in the Roanoke neighborhoods of Old Southwest, Mountain View, and Hurt Park. It is a primarily residential district with houses in a variety of popular late-19th and early-20th ...