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Griselda

(Encyclopedia)Griselda grĭzĕlˈdə [key], long-suffering heroine of medieval story, whose husband subjects her to numerous trials in order to test her devotion. The story originated in a widespread W European fol...

Turing, Alan Mathison

(Encyclopedia)Turing, Alan Mathison, 1912–54, British mathematician and computer theorist. While studying at Cambridge he began work in predicate logic that led to a proof (1937) that some mathematical problems a...

Wexler, Nancy

(Encyclopedia)Wexler, Nancy, 1945–, American geneticist and neuropsychologist, b. Washington, D.C., Ph.D. Univ. of Michigan, 1974. After her mother was diagnosed with Huntington's disease in 1968, her father, the...

Bradley, James

(Encyclopedia)Bradley, James, 1693–1762, English astronomer. His discovery of the aberration of light, announced in 1728, provided an important line of evidence for the motion of the earth around the sun. In 1742...

Slidell

(Encyclopedia)Slidell slīdĕlˈ [key], city (1990 pop. 24,124), St. Tammany parish, SE La., near Lake Pontchartrain, there crossed by a bridge to New Orleans; inc. 1888. Originally a shipbuilding and brick-manufac...

Edwards Air Force Base

(Encyclopedia)Edwards Air Force Base, U.S. military installation, 301,000 acres (121,805 hectares), S Calif., NE of Lancaster; est. 1933. It is one of the largest air force bases in the United States and has the wo...

Kwajalein

(Encyclopedia)Kwajalein kwäˈjälān, –lēn, –lĭn [key], coral atoll, 6.5 sq mi (16.8 sq km), central Pacific, in the Ralik Chain of the Marshall Islands. The largest atoll of the Marshalls, Kwajalein, consis...

Pennsylvania State University

(Encyclopedia)Pennsylvania State University, main campus at University Park, State College; land-grant and state supported; coeducational; chartered 1855, opened 1859 as Farmers' High School. It was named the Agric...

blood count

(Encyclopedia)blood count, method for determining the number of red (erythrocytes) and white (leukocytes) blood cells in a certain volume of blood. This test can be used as a preliminary step in diagnosing some dis...

equestrianism

(Encyclopedia)equestrianism, art of riding and handling a horse. Horseback riding was practiced as far back as the Bronze Age and was thereafter adapted to commerce, industry, war, sport, and recreation. Diverse st...