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personal computer
(Encyclopedia) personal computer (PC), small but powerful computer primarily used in an office or home without the need to be connected to a larger computer. PCs evolved after the development of the…steamship
(Encyclopedia) steamship, watercraft propelled by a steam engine or a steam turbine. Despite such innovations as turbo-electric drive, which converts steam energy into rotational power for…internal-combustion engine
(Encyclopedia) CE5 Internal-combustion engines: In the four-stroke reciprocating engine (above), a mixture of fuel and air is taken into the chamber on the down-stroke of the piston, is compressed…guilds
(Encyclopedia) guilds or gilds, economic and social associations of persons engaging in the same business or craft, typical of Western Europe in the Middle Ages. Membership was by profession or craft…Women's Olympic Swimming Medalists
Event Time 50m Free Amy Van Dyken, USA 24.87 Le Jingyi, CHN 24.90 Sandra Volker, GER 25.14 100m Free Le Jingyi, CHN 54.50 Sandra Volker, GER 54…Rowland, Henry Augustus
(Encyclopedia) Rowland, Henry AugustusRowland, Henry Augustusrōˈlənd [key], 1848–1901, American physicist, b. Honesdale, Pa., grad. Rensselaer Polytechnic Institute, 1870. He was professor of physics…Rjukan
(Encyclopedia) RjukanRjukanrē&oomacr;ˈkän [key], town, Telemark co., S Norway, on the Rjukanfoss, one of several high waterfalls of the Måne River. Its large power stations supply electricity to…Barrow, Dean Oliver
(Encyclopedia) Barrow, Dean Oliver, 1951–, Belizean political leader, prime minister of Belize (2008–20). A lawyer and member of the United Democratic party (UDP), he served in the Belize House of…Sheffield, city, United States
(Encyclopedia) Sheffield, industrial city (1990 pop. 10,380), Colbert co., NW Ala., on the Tennessee River near Muscle Shoals, in an iron and coal area; inc. 1885. Its varied manufactures include…Schuller, Robert Harold
(Encyclopedia) Schuller, Robert Harold, 1926–2015, American Protestant minister and television evangelist, b. Alton, Iowa. Schuller gained attention (1955) when he used a drive-in theater to preach…Trending
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