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communications satellite
communications satellite artificial satellite that functions as part of a global radio-communications network. Echo 1, the first communications satellite, launched in 1960, was an instrumented inflatable sphere that passively reflected radio signals back to earth. Later satellites carried with ...
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Ku
Ku formerly the suggested symbol for the element kurchatovium, now called rutherfordium .
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hahnium
hahnium , symbol Ha, former suggested name for both element 105, now called dubnium , and element 108, now called hassium .
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Hammurabi
Hammurabi , fl. 1792-1750 BC, king of Babylonia . He founded an empire that was eventually destroyed by raids from Asia Minor. Hammurabi may have begun building the tower of Babel (Gen. 11.4), which can now be identified with the temple-tower in Babylon called Etemenanki. His code of laws is one of...
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Davos
Davos , town (1990 pop. 10,957), Grisons canton, E Switzerland, on the Landwasser River. It is a famous winter sports center and a health resort. Since 1971 (except for 2002-3), Davos has hosted the annual conference of what is now the World Economic Forum; the conference draws national leaders and ...
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broadcasting
broadcasting transmission of sound or images to a large number of receivers by radio or television. In the United States the first regularly scheduled radio broadcasts began in 1920 at 8XK (later KDKA) in Pittsburgh. The sale of advertising was started in 1922, establishing commercial broadcastin...
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Sir William Mackenzie
Sir William Mackenzie 1849-1923, Canadian railroad builder and financier, b. Ontario. In the early 1870s he became a railroad contractor. He constructed portions of the Canadian National and the Canadian Pacific railroads. Entering (c.1888) into partnership with Sir Donald Mann, another Canadian Pa...
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bus
bus [Lat. omnibus =for all], large public conveyance. A horse-drawn urban omnibus was introduced in Paris in 1662 by Blaise Pascal and his associates, but it remained in operation for only a few years. The omnibus reappeared c.1812 in Bordeaux, France, and afterward in Paris (c.1827), London (1829...
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Espoo
Espoo , Swed. Esbo, city (1998 pop. 204,962), Southern Finland prov., S Finland, 10 mi (16 km) W of Helsinki. Part of the Helsinki metropolitan area, Espoo saw enormous growth in the late 20th cent., and is now Finland's second largest city. The city has five regional centers, including Tapiola Ga...
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Salona
Salona , Latin Salonae, ancient city of Dalmatia , 3 mi (5 km) NE of modern Split, Croatia. A port on the Adriatic, it was used as a base for Roman conquest and was made a Roman colony and the capital of Illyricum in the 1st cent. BC The busy commercial city gained prestige when Diocletian , aft...
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