Columbia Encyclopedia

Search results

500 results found

infinity

(Encyclopedia)infinity, in mathematics, that which is not finite; it is often indicated by the symbol ∞. A sequence of numbers, a1, a2, a3, … , is said to “approach infinity” if the numbers eventually b...

Speaker, Tris

(Encyclopedia)Speaker, Tris (Tristram Speaker), 1888–1958, American baseball player, b. Hubbard, Tex. He started (1906) in organized baseball as a left-handed pitcher for the Cleburne team of the North Texas Leag...

Palermo

(Encyclopedia)Palermo pälĕrˈmō [key], Lat. Panormus, city (1991 pop. 698,556), capital of Palermo prov. and of Sicily, NW Sicily, Italy, on the Tyrrhenian Sea. Situated on the edge of the Conca d'Oro (Golden Co...

Anchorage

(Encyclopedia)Anchorage ăngˈkərĭj [key], city (2020 pop. 291,247), Anchorage census div., S central Alaska, a port at the head of Cook Inlet; inc. 1920. It is the largest city in th...

Petersburg

(Encyclopedia)Petersburg, city (1990 pop. 38,386), politically independent and in no county, SE Va., on the Appomattox River; inc. 1850. A port of entry and an important tobacco market, it has industries producing ...

Marietta

(Encyclopedia)Marietta mârēĕtˈə [key]. 1 City (1990 pop. 44,129), seat of Cobb co., NW Ga.; inc. 1834. The principal manufactures of this suburb of Atlanta are related to aircraft production. At the foot of Ke...

Astoria

(Encyclopedia)Astoria ăstôrˈēə [key]. 1 Commercial, industrial, and residential section of NW Queens borough of New York City, SE N.Y.; settled in the 17th cent. as Hallet's Cove. It was renamed for John Jacob...

Barbirolli, Sir John

(Encyclopedia)Barbirolli, Sir John bärˌbərōˈlē [key], 1899–1970, English conductor and cellist, b. London. After being cellist (1920–24) in the International String Quartet, he organized the Barbirolli St...

Texas, University of

(Encyclopedia)Texas, University of, main campus at Austin; coeducational; state supported; chartered 1881, opened 1883. Medical facilities include health science centers with medical schools at Houston and San Anto...

secant

(Encyclopedia)secant, in mathematics. 1 In geometry, a secant is a straight line cutting a curve or surface. If it intersects the curve in two different points, as in the secant of a circle, the segment of the seca...