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Secchi, Pietro Angelo
(Encyclopedia)Secchi, Pietro Angelo pyĕˈtrō änˈjālō sĕkˈkē [key], 1818–78, Italian astronomer, a Jesuit priest. He was director of the observatory of the Gregorian Univ., Rome, from 1849. He is known es...Van Allen radiation belts
(Encyclopedia) CE5 Van Allen radiation belts: The solar wind, a stream of protons, electrons, and ions coming from the sun, gives the belts their asymmetrical shape. Van Allen radiation belts, belts of radiation...Io, in astronomy
(Encyclopedia)Io īˈō [key], in astronomy, one of the 39 known moons, or natural satellites, of Jupiter. Io is subject to Jupiter's enormous tidal forces and is, as a result, the most volcanically active body in ...Kerrville
(Encyclopedia)Kerrville kûrˈvĭl [key], city (1990 pop. 17,384), seat of Kerr co., S central Tex., on the Guadalupe River; settled 1846, inc. 1942. Kerrville has an active livestock industry (cattle, sheep, goats...Piccard, Auguste
(Encyclopedia)Piccard, Auguste ōgüstˈ pēkärˈ [key], 1884–1962, Swiss physicist, b. Basel. He became a professor at the Univ. of Brussels in 1922. He and his twin brother Jean Felix (d. 1963) are known for t...Copernican system
(Encyclopedia)Copernican system, first modern European theory of planetary motion that was heliocentric, i.e., that placed the sun motionless at the center of the solar system with all the planets, including the ea...Schuster, Sir Arthur
(Encyclopedia)Schuster, Sir Arthur, 1851–1934, English physicist, b. Germany. At Owens College, Manchester Univ., he was professor of applied mathematics (1881–88) and professor of physics (1888–1907). He is ...Schwabe, Samuel Heinrich
(Encyclopedia)Schwabe, Samuel Heinrich zäˈmo͞oĕl hīnˈrĭkh shväbˈə [key], 1789–1875, German apothecary and amateur astronomer. In the hope of discovering a new planet between Mercury and the sun, he made...Ovshinsky, Stanford Robert
(Encyclopedia)Ovshinsky, Stanford Robert, 1922–2012, American inventor and scientist, b. Akron, Ohio. Self-taught, he developed a new type of lathe in the 1940s, the first of many innovations and patents. Special...planetary science
(Encyclopedia)planetary science or planetology, study of planets and planetary systems as a whole. Planetary science applies the theories and methods of traditional disciplines such as astronomy, geology, physics, ...Browse by Subject
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