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Sierra Madre, mountain system, Mexico
(Encyclopedia)Sierra Madre dĕl so͝orˈ [key] is a tumbled, broken mass of uptilted mountains that touch the Pacific coast but form into no clearly defined range. It spreads over S Mexico between the volcanic belt...Wissmann, Hermann von
(Encyclopedia)Wissmann, Hermann von hĕrˈmän fən vĭsˈmän [key], 1853–1905, German explorer in Africa. He crossed (1880–82) Africa from Luanda to Zanzibar and, on behalf of Leopold II of Belgium, explored ...zenith
(Encyclopedia)zenith, in astronomy, the point in the sky directly overhead; more precisely, it is the point at which the celestial sphere is intersected by an upward extension of a plumb line from the observer's lo...Moser, Edvard Ingjald
(Encyclopedia)Moser, Edvard Ingjald, 1962–, Norwegian psychologist and neuroscientist, Ph.D. Univ. of Oslo, 1995, and May-Britt Moser, 1963–, also a Norwegian psychologist and neuroscientist, Ph.D. Univ. of Osl...Still, William
(Encyclopedia)Still, William, 1821–1902, American abolitionist, b. Burlington co., N.J. After he moved to Philadelphia (1844), he began working for the Pennsylvania Anti-Slavery Society (1847) and became head of ...Obiang Nguema Mbasogo, Teodoro
(Encyclopedia)Obiang Nguema Mbasogo, Teodoro, 1942–, Equatoguinean military and political leader, president of Equatorial Guinea (1979–). He graduated (1963) from Spain's Zaragoza Military Academy while Equator...constellation, in astronomy
(Encyclopedia)CE5 Constellations: Southern sky CE5 Constellations: Southern sky CE5 Constellations: Southern sky constellation, in common usage, group of stars that appear to form a configuration in the...Major Planets of the Solar System (table)
(Encyclopedia)Major Planets of the Solar System ...horizon
(Encyclopedia)horizon, in astronomy, roughly circular line bounding an observer's view of the surface of the earth where the sky and earth seem to meet. This is the visible horizon. At sea the visible horizon is a ...celestial sphere
(Encyclopedia)celestial sphere, imaginary sphere of infinite radius with the earth at its center. It is used for describing the positions and motions of stars and other objects. For these purposes, any astronomical...Browse by Subject
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