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multimedia

(Encyclopedia)multimedia, in personal computing, software and applications that combine text, high-quality sound, two- and three-dimensional graphics, animation, photo images, and full-motion video. In order to wor...

Lagos, city, Nigeria

(Encyclopedia)Lagos lāˈgŏs, läˈgôs [key], city (1991 est. pop. 1,274,000), SW Nigeria, on the Gulf of Guinea. It comprises the island of Lagos and three former neighboring islands (now connected by landfill t...

Washington, Denzel

(Encyclopedia) Washington, Denzel (Denzel Hayes Washington Jr.), 1954- , African-American actor, b. Mount Vernon, N.Y., Fordham Univ. (B.A., 1977). Washington’s fa...

Salazar, António de Oliveira

(Encyclopedia)Salazar, António de Oliveira əntôˈnyo͝o ᵺĭ o͝olēvāˈrə sələzärˈ [key], 1889–1970, Portuguese statesman and dictator. After studying at the Univ. of Coimbra, he became professor of po...

centrifuge

(Encyclopedia)centrifuge sĕnˈtrəfyo͞oj [key], device using centrifugal force to separate two or more substances of different density, e.g., two liquids or a liquid and a solid. The centrifuge consists of a fixe...

directing

(Encyclopedia)directing, the art of leading dramatic performances on the stage or in films. The modern theatrical director is in complete charge of all the artistic aspects of a dramatic presentation. It is the dir...

futurism

(Encyclopedia)futurism, Italian school of painting, sculpture, and literature that flourished from 1909, when Filippo Tommaso Marinetti's first manifesto of futurism appeared, until the end of World War I. Carlo Ca...

amplifier

(Encyclopedia)amplifier, device that accepts a varying input signal and produces an output signal that varies in the same way as the input but has a larger amplitude. The input signal may be a current, a voltage, a...

Winfrey, Oprah

(Encyclopedia)Winfrey, Oprah, 1954–, African-American television host, actress, and media magnate, b. Kosciusko, Miss., as Orpah Gail Winfrey, grad. Tennessee State Univ. (1976). She began her career as a Nashvil...

xenon

(Encyclopedia)xenon zēˈnŏn [key] [Gr.,=strange], gaseous chemical element; symbol Xe; at. no. 54; at. wt. 131.293; m.p. −111.9℃; b.p. −107.1℃; density 5.86 grams per liter at STP; valence usually 0. Xeno...