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bey

(Encyclopedia)bey bā [key], general title of respect used by Turkish peoples since ancient times. Originally given to tribal leaders, it was later used by the Ottomans to denote a provincial ruler. At first the Ot...

Blagoevgrad

(Encyclopedia)Blagoevgrad blägôˈĕvgrät [key], city, SW Bulgaria, is a farming region known especially for its ...

Borg, Björn

(Encyclopedia)Borg, Björn byörn bôrg, bôrˈyə [key], 1956–, Swedish tennis player. As a teenage star he led (1975) Sweden to its first Davis Cup victory. One of the most successful modern tennis players, Bor...

momentum

(Encyclopedia)momentum mōmĕnˈtəm [key], in mechanics, the quantity of motion of a body, specifically the product of the mass of the body and its velocity. Momentum is a vector quantity; i.e., it has both a magn...

McKim, Charles Follen

(Encyclopedia)McKim, Charles Follen, 1847–1909, American architect, b. Chester co., Pa., studied (1867–70) at the École des Beaux-Arts. He was one of the founders of the firm of McKim, Mead, and Bigelow, which...

Torres-García, Joaquín

(Encyclopedia)Torres-García, Joaquín, 1874–1949, Uruguayan painter, b. Montevideo, considered the father of Latin American constructivism. In 1894 his family moved to Barcelona, Spain, where he studied at the A...

shaft sinking

(Encyclopedia)shaft sinking, excavation from the surface of an opening in the earth. Shafts, which are generally vertical, are usually distinguished from tunnels, which are horizontal. Little difficulty is experien...

complex variable analysis

(Encyclopedia)complex variable analysis, branch of mathematics that deals with the calculus of functions of a complex variable, i.e., a variable of the form z=x+iy, where x and y are real and i=−1 (see number). A...

Newman, Ernest

(Encyclopedia)Newman, Ernest, 1868–1959, English music critic. He joined the staff of the Manchester Guardian in 1905, the Birmingham Daily Post in 1906, the London Observer in 1919, and The Times of London in 19...

Avery Island

(Encyclopedia)Avery Island, salt dome, 163 ft (50 m) high and 2 mi (3.2 km) in diameter, S La., in an area of sea marshes and swamps. A corporation controlled by the Avery and McIlhenny families owns the island. Ho...