Columbia Encyclopedia

Search results

500 results found

Big Black Mountain

(Encyclopedia)Big Black Mountain, peak, 4,145 ft (1,263 m) high, E Ky., in the Cumberland Mts.; highest point in Kentucky.

geometry

(Encyclopedia)geometry [Gr.,=earth measuring], branch of mathematics concerned with the properties of and relationships between points, lines, planes, and figures and with generalizations of these concepts. Eucli...

reclamation of land

(Encyclopedia)reclamation of land, practice of converting land deemed unproductive into arable land by such methods as irrigation, drainage, flood control, altering the texture and mineral and organic content of so...

basketball

(Encyclopedia)basketball, game played generally indoors by two opposing teams of five players each. Basketball was conceived in 1891 by Dr. James Naismith, a physical education instructor at the YMCA college in Spr...

Internet, the

(Encyclopedia)Internet, the, international computer network linking together thousands of individual networks at military and government agencies, educational institutions, nonprofit organizations, industrial and f...

Marquand, John Phillips

(Encyclopedia)Marquand, John Phillips märˈkwänd [key], 1893–1960, American novelist, b. Wilmington, Del., grad. Harvard, 1915. Most of Marquand's gently satirical novels examine life among the rich and sociall...

Scott, Hugh Lenox

(Encyclopedia)Scott, Hugh Lenox, 1853–1934, U.S. army officer, b. Danville, Ky., grad. West Point, 1876. He was assigned (1876) to military service in the West and took part in the Sioux, Nez Percé, and Cheyenne...

shock wave

(Encyclopedia)shock wave, wave formed of a zone of extremely high pressure within a fluid, especially the atmosphere, that propagates through the fluid at a speed in excess of the speed of sound. A shock wave is ca...

Gibraltar, Strait of

(Encyclopedia)Gibraltar, Strait of jĭbrôlˈtər [key], Lat. Fretum Herculeum or Fretum Gaditanum, passage, c.36 mi (58 km) long, connecting the Atlantic and the Mediterranean, between southernmost Spain and north...

fire clay

(Encyclopedia)fire clay, clay that has a high degree of resistance to heat. By the best standards it should have a fusion point higher than 1,600℃. The term “fire clay” is commonly held to exclude kaolin and ...