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Boolean algebra

(Encyclopedia)Boolean algebra bo͞oˈlēən [key], an abstract mathematical system primarily used in computer science and in expressing the relationships between sets (groups of objects or concepts). The notational...

Goliardic songs

(Encyclopedia)Goliardic songs gōlēärˈdĭk [key], Late Latin poetry of the “wandering scholars,” or Goliards. The Goliards included university students who went from one European university to another, schol...

Foss, Lukas

(Encyclopedia)Foss, Lukas fôs [key], 1922–2009, American composer, pianist, and conductor, b. Berlin as Lukas Fuchs. He came to the United States in 1937, attended the Curtis Institute in Philadelphia, studied c...

cesium

(Encyclopedia)cesium sēˈzēəm [key] [Lat.,=bluish gray], a metallic chemical element; symbol Cs; at. no. 55; at. wt. 132.90545; m.p. 28.4℃; b.p. 669.3℃; sp. gr. 1.873 at 20℃; valence +1. Cesium is a ductil...

Lin, Maya Ying

(Encyclopedia)Lin, Maya Ying mīˈə [key], 1959–, American architect and sculptor, b. Athens, Ohio. Lin's work is known for its visual poetry and sensitive mingling of highly abstract form with meaning. From an ...

matriarchy

(Encyclopedia)matriarchy, familial and political rule by women. Many contemporary anthropologists reject the claims of J. J. Bachofen and Lewis Morgan that early societies were matriarchal, although some contempora...

Schoolcraft, Henry Rowe

(Encyclopedia)Schoolcraft, Henry Rowe, 1793–1864, American ethnologist, b. near Albany, N.Y. He gave enormous impetus to the study of Native American culture and may be regarded as the foremost pioneer in Native ...

Barnburners

(Encyclopedia)Barnburners, radical element of the Democratic party in New York state from 1842 to 1848, opposed to the conservative Hunkers. The name derives from the fabled Dutchman who burned his barn to rid it o...

Chautauqua movement

(Encyclopedia)Chautauqua movement, development in adult education somewhat similar to the lyceum movement. It derived from an institution at Chautauqua, N.Y. There, in 1873, John Heyl Vincent and Lewis Miller propo...

gold rush

(Encyclopedia)gold rush, influx of prospectors, merchants, adventurers, and others to newly discovered gold fields. One of the most famous of these stampedes in pursuit of riches was the California gold rush. The d...