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navigation satellite

(Encyclopedia) navigation satellite, artificial satellite designed expressly to aid the navigation of sea and air traffic. Early navigation satellites, from the Transit series launched in 1960 to the…

Weather: Measuring the Rain

Measuring the RainWeatherMeasuring the AtmosphereThe Take on TemperatureIs the Pressure Getting to You?The Wind in the WillowsIt's Not the Heat, It's the HumidityMeasuring the RainPlacing the…

Kildare

(Encyclopedia) Kildare, county (1991 pop. 122,656), 654 sq mi (1,694 sq km), E central Republic of Ireland. The county seat is Kildare. The region is a flat plain, containing the greater portion of…

Barnabas, Saint

(Encyclopedia) Barnabas, SaintBarnabas, Saintbärˈnəbəs [key], Christian apostle. He was a Cypriot and a relative of St. Mark; his forename was Joseph. Several passages in the New Testament relate…

Oersted, Hans Christian

(Encyclopedia) Oersted or Ørsted, Hans ChristianOersted or Ørsted, Hans Christianhäns krĭsˈtyän örˈstĭᵺ [key], 1777–1851, Danish physicist and chemist. He was professor at Copenhagen from 1806. His…

Ginsburg, Christian David

(Encyclopedia) Ginsburg, Christian DavidGinsburg, Christian Davidgĭnzˈbərg [key], 1831–1914, English Hebrew scholar, b. Warsaw. He was converted to Christianity in 1846 and settled in England. He…

Stephen, Saint, Christian martyr

(Encyclopedia) Stephen, Saint, d. a.d. 36?, first Christian martyr, stoned at Jerusalem. He was one of the seven deacons. Accused of blasphemy, he was brought before the Sanhedrin in Jerusalem. His…

Mott, John Raleigh

(Encyclopedia) Mott, John Raleigh, 1865–1955, American Protestant ecumenical leader, b. Livingston Manor, N.Y. While a student at Cornell, Mott, a Methodist layman, became active in the Young Men's…

Klein, Christian Felix

(Encyclopedia) Klein, Christian FelixKlein, Christian Felixkrĭsˈtēän fāˈlĭks [key]Klein, Christian Felix klīn [key], 1849–1925, German mathematician. He is noted for his work in geometry and on the…

Lauterbur, Paul Christian

(Encyclopedia) Lauterbur, Paul Christian, 1929–2007, American chemist, b. Sidney, Ohio, Ph.D. Univ. of Pittsburgh, 1962. Lauterbur was (1969–85) a faculty member at the State Univ. of New York at…