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Schematic capture or schematic entry is a step in the design cycle of electronic design automation (EDA) at which the electronic diagram, or electronic schematic of the designed electronic circuit, is created by a designer. This is done interactively with the help of a schematic capture tool also known as schematic editor. [1]
The Ford Model A and B engines dominated American auto racing until World War II [41] [43] [44] [13] Some racing is still done with Ford Model A engines, [43] [45] [46] [47] and high-performance aftermarket modifications are available to increase performance, with some achieving 110 horsepower, at compression ratios of up to 6.5-to-1. [13] [39 ...
Despite a rather severe farm economy depression at the time, Deere & Company management decided to build the Model D prototype in 1923, designed by Muir L. Frey (father of Ford Mustang designer Donald N. Frey). [2] The Deere Model D was produced from March 1, 1923, to July 3, 1953, the longest production span of all the two-cylinder John Deere ...
Bessemer converter, schematic diagram. The Bessemer process was the first inexpensive industrial process for the mass production of steel from molten pig iron before the development of the open hearth furnace. The key principle is removal of impurities from the iron by oxidation with air being blown through the molten iron. The oxidation also ...
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Cast iron is more brittle than wrought iron or steel, which required additional fining and then cementation or co-fusion to produce, but for menial activities such as farming it sufficed. By using the blast furnace, it was possible to produce larger quantities of tools such as ploughshares more efficiently than the bloomery.
Iron and copper working spread southward through the continent, reaching the Cape around AD 200. [6] [7] The widespread use of iron revolutionized the Bantu-speaking farming communities who adopted it, driving out and absorbing the rock tool using hunter-gatherer societies they encountered as they expanded to farm wider areas of savanna. The ...
A 1956 Soviet stamp depicting an MTS MTS in East Germany. The machine tractor station (MTS) (Ukrainian: Машинно-тракторна станція, romanized: Mashynno-traktorna stantsiia, Russian: машинно-тракторная станция, romanized: mashinno-traktornaya stantsiya, МТС) was a state enterprise for ownership and maintenance of agricultural machinery that were ...