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Ayeyarwady

(Encyclopedia) AyeyarwadyAyeyarwadyīˌyärwädˈē [key] or IrrawaddyIrrawaddyĭrəwŏdˈē [key], chief river of Myanmar, c.1,000 mi (1,600 km) long, formed by the confluence of the Mali and Nmai rivers in N…

Magdalena

(Encyclopedia) MagdalenaMagdalenamägᵺälāˈnä [key], river, c.1,000 mi (1,600 km) long, rising in the Cordillera Central, SW Colombia and flowing N to the Caribbean Sea near Barranquilla. It flows in a…

blockade

(Encyclopedia) blockade, use of naval forces to cut off maritime communication and supply. Blockades may be used to prevent shipping from reaching enemy ports, or they may serve purposes of coercion…

Wiener, Norbert

(Encyclopedia) Wiener, Norbert, 1894–1964, American mathematician, educator, and founder of the field of cybernetics, b. Columbia, Mo., grad. Tufts College, 1909, Ph.D. Harvard, 1913. In 1920 he…

Antofagasta

(Encyclopedia) Antofagasta Antofagasta äntōfägäˈstä [key], city, capital of Antofagasta region, N Chile, a port on the Pacific Ocean. Antofagasta was founded by Chileans in…

Holy Spirit

(Encyclopedia) Holy Spirit or Holy Ghost [ghost, i.e., spirit, a translation of Gr. pneuma=breath, air], in Christian doctrine, the third person of the Trinity. The Holy Spirit is sometimes defined…

digital-to-analog conversion

(Encyclopedia) digital-to-analog or D/A conversion, the process of changing discrete digital data into a continuously varying signal in relation to a standard or reference. There are two types of…

Clegg, Sir Nick

(Encyclopedia) Clegg, Sir Nick (Nicholas William Peter Clegg), 1967–, British politician, grad. Cambridge (M.A., 1989), College of Europe, Bruges, Belgium (M.A., 1992). Of British, Russian, and Dutch…

Fox sisters

(Encyclopedia) Fox sisters, family of American spiritualists including Margaret, 1836–93, Leah, 1814–90, and Catherine, 1841–92. In 1848, Margaret and Catherine claimed to hear mysterious rappings in…

Figueres Ferrer, José

(Encyclopedia) Figueres Ferrer, JoséFigueres Ferrer, Joséhōsāˈ fēgāˈrās fār-rārˈ [key], 1906–90, president of Costa Rica (1948–49, 1953–58, 1970–74). He rose to prominence as an outspoken critic of…