Columbia Encyclopedia

(Encyclopedia) Telesto təlĕsˈtō [key], in astronomy, one of the named moons, or natural satellites, of Saturn. Also known as Saturn XIII (or S13), Telesto is an irregularly shaped (nonspherical) body measuring a...

(Encyclopedia) Hume, David hyo͞om [key], 1711–76, Scottish philosopher and historian. Educated at Edinburgh, he lived (1734–37) in France, where he finished his first philosophical work, A Treatise of Human Nat...

(Encyclopedia) Lent [Old Eng. lencten,=spring], Latin Quadragesima (meaning 40; thus the 40 days of Lent). In Christianity, Lent is a time of penance, prayer, preparation for or recollection of baptism, and preparat...

(Encyclopedia) Herzberg, Gerhard gĕrˈhärt hûrtsˈbûrg [key], 1904–99, Canadian physicist, b. Hamburg, Germany. He studied at Darmstadt, Göttingen, and Bristol, England, receiving a doctorate in engineering p...

(Encyclopedia) Jansky, Karl Guthe, 1905–50, American radio engineer; b. Norman, Okla. After graduating (1927) from the Univ. of Wisconson, he joined the Bell Telephone Laboratories. While trying to determine the c...

(Encyclopedia) Michigan, University of, main campus at Ann Arbor; state supported; coeducational; chartered 1817 at Detroit as the Catholepistemiad, or Univ., of Michigania, rechartered 1821 (as Univ. of Mich.) and ...

(Encyclopedia) Ginzburg, Vitaly Lazarevich, 1916–2009, Russian physicist, Ph.D. Moscow State Univ., 1938. He was a researcher at Lebedev Physics Institute of the USSR (later Russian) Academy of Sciences after 1940...

(Encyclopedia) Le Verrier, Urbain Jean Joseph ürbăNˈ zhäN zhôzĕfˈ ləvĕryāˈ [key], 1811–77, French astronomer who made calculations that led to the discovery of the planet Neptune. In considering the per...

(Encyclopedia) Braille brāl [key], in astronomy, a small asteroid notable because it has the same atypical geologic composition as the larger asteroid Vesta. In 1999 the space probe Deep Space 1 passed within 16 mi...

(Encyclopedia) Giacconi, Riccardo, 1931–2018, Italian-American astrophysicist, b. Milan, Italy, Ph.D. Univ. of Milan 1954. He was a researcher at American Science and Engineering Corporation (1959–73), professor...