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competition, in economics

(Encyclopedia)competition, in economics, rivalry in supplying or acquiring an economic service or good. Sellers compete with other sellers, and buyers with other buyers. In its perfect form, there is competition am...

MacArthur, Douglas

(Encyclopedia)MacArthur, Douglas, 1880–1964, American general, b. Little Rock, Ark.; son of Arthur MacArthur. At the beginning (1950) of the Korean War he was appointed commander of UN military forces in South ...

Air Force, United States Department of the

(Encyclopedia)Air Force, United States Department of the, military department within the U.S. Dept. of Defense (see Defense, United States Department of). The Air Force traces its roots to the founding of the Aeron...

Royal Society

(Encyclopedia)Royal Society, oldest scientific organization in Great Britain and one of the oldest in Europe. It was founded in 1660 by a group of learned men in London who met to promote scientific discussion, par...

rickettsia

(Encyclopedia)rickettsia rĭkĕtˈsēə [key], any of an order (Rickettsiales) of very small microorganisms, many disease-causing, that live in vertebrates and are transmitted by bloodsucking parasitic arthropods s...

solar system

(Encyclopedia)CE5 Solar system CE5 solar system, the sun and the surrounding planets, natural satellites, dwarf planets, asteroids, meteoroids, and comets that are bound by its gravity. The sun is by far the ...

nucleosynthesis

(Encyclopedia)nucleosynthesis or nucleogenesis, in astronomy, production of all the chemical elements from the simplest element, hydrogen, by thermonuclear reactions within stars, supernovas, and in the big bang at...

comic strip

(Encyclopedia)comic strip, combination of cartoon with a story line, laid out in a series of pictorial panels across a page and concerning a continuous character or set of characters, whose thoughts and dialogues a...

Vanderbilt, Cornelius

(Encyclopedia)Vanderbilt, Cornelius, 1794–1877, American railroad magnate, b. Staten Island, N.Y. As a boy he ferried freight and passengers from Staten Island to Manhattan, and he soon gained control of most of ...

bridge, card game

(Encyclopedia)bridge, card game derived from whist, played with 52 cards by four players in two partnerships. Bridge probably originated in the Middle East in the 19th cent. Auction bridge, one form of the game, ...