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hydrothermal vent
(Encyclopedia)hydrothermal vent, crack along a rift or ridge in the deep ocean floor that spews out water heated to high temperatures by the magma under the earth's crust. Some vents are in areas of seafloor spread...games, theory of
(Encyclopedia)games, theory of, group of mathematical theories first developed by John Von Neumann and Oskar Morgenstern. A game consists of a set of rules governing a competitive situation in which from two to n i...Bank of the United States
(Encyclopedia)Bank of the United States, name for two national banks established by the U.S. Congress to serve as government fiscal agents and as depositories for federal funds; the first bank was in existence from...American Ballet Theatre
(Encyclopedia)American Ballet Theatre (ABT), one of the foremost international dance companies of the 20th and 21st cents. It was founded in 1937 as the Mordkin Ballet and reorganized as the Ballet Theatre in 1940 ...Bank of Sweden Prize in Economic Sciences in Memory of Alfred Nobel (table)
(Encyclopedia)Bank of Sweden Prize in Economic Sciences in Memory of Alfred Nobel ...marine biology
(Encyclopedia)marine biology, study of ocean plants and animals and their ecological relationships. Marine organisms may be classified (according to their mode of life) as nektonic, planktonic, or benthic. Nektonic...Colorado, rivers, United States and Mexico
(Encyclopedia)Colorado [1] kŏlərădˈə, –rădˈō, –räˈdō [2] kŏlərāˈdə, –räˈdə [key]. 1 Great river of the SW United States, 1,450 mi (2,334 km) long, rising in the Rocky Mts. of N Colo., and f...Twain, Mark
(Encyclopedia)Twain, Mark, pseud. of Samuel Langhorne Clemens, 1835–1910, American author, b. Florida, Mo. As humorist, narrator, and social observer, Twain is unsurpassed in American literature. His novel The Ad...flood, in hydrology
(Encyclopedia)flood, inundation of land by the rise and overflow of a body of water. Floods occur most commonly when water from heavy rainfall, from melting ice and snow, or from a combination of these exceeds the ...photography, still
(Encyclopedia)photography, still, science and art of making permanent images on light-sensitive materials. See also photographic processing; motion picture photography; motion pictures. By the end of ...Browse by Subject
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