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Central America

(Encyclopedia)Central America, narrow, southernmost region (c.202,200 sq mi/523,698 sq km) of North America, linked to South America at Colombia. It separates the Caribbean from the Pacific. Historically, geographe...

Early, Jubal Anderson

(Encyclopedia)Early, Jubal Anderson, 1816–94, Confederate general, b. Franklin co., Va., grad. West Point, 1837. After fighting against the Seminole in Florida he resigned from the army (1838), studied law, and p...

computer virus

(Encyclopedia)computer virus, rogue computer program, typically a short program designed to disperse copies of itself to other computers and disrupt those computers' normal operations. A computer virus usually atta...

corrupt practices

(Encyclopedia)corrupt practices, in politics, fraud connected with elections. The term also refers to various offenses by public officials, including bribery, the sale of offices, granting of public contracts to fa...

Trollope, Anthony

(Encyclopedia)Trollope, Anthony trŏlˈəp [key], 1815–82, one of the great English novelists. After spending seven unhappy years in London as a clerk in the general post office, he transferred (1841) to Ireland ...

spiritual

(Encyclopedia)spiritual, a religious folk song of American origin, particularly associated with African-American Protestants of the southern United States. The African-American spiritual, characterized by syncopati...

Vermeer, Jan

(Encyclopedia)Vermeer, Jan or Johannes vərmērˈ, Dutch yän vərmārˈ, yōhänˈəs [key], 1632–75, Dutch genre and landscape painter. He was born in Delft, where he spent his entire life. He was also known as...

Machiavelli, Niccolò

(Encyclopedia)Machiavelli, Niccolò nēk-kōlôˈ mäkyävĕlˈlē [key], 1469–1527, Italian author and statesman, one of the outstanding figures of the Renaissance, b. Florence. Machiavelli's best-known work, ...

quantum electrodynamics

(Encyclopedia)quantum electrodynamics (QED), quantum field theory that describes the properties of electromagnetic radiation and its interaction with electrically charged matter in the framework of quantum theory. ...

Arkwright, Sir Richard

(Encyclopedia)Arkwright, Sir Richard, 1732–92, English inventor. His construction of a machine for spinning, the water frame, patented in 1769, was an early step in the Industrial Revolution. His machines and his...