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oganesson

(Encyclopedia)oganesson ōˈgənĕsˌən [key], artificially produced radioactive chemical element; symbol Og; at. no. 118; mass number of most stable isotope 294; m.p., b.p., sp. gr., and valence unknown. Situated...

Arendt, Hannah

(Encyclopedia)Arendt, Hannah hänˈä ärˈənt [key], 1906–75, German-American political theorist, b. Hanover, Germany, B.A. Königsberg, 1924, Ph.D. Heidelberg, 1928. In 1925 she met Martin Heidegger, who great...

plutonium

(Encyclopedia)plutonium plo͞otōˈnēəm [key], radioactive chemical element; symbol Pu; at. no. 94; mass no. of most stable isotope 244; m.p. 641℃; b.p. 3,232℃; sp. gr. 19.84 at 20℃; valence +3, +4, +5, or ...

Edward II

(Encyclopedia)Edward II, 1284–1327, king of England (1307–27), son of Edward I and Eleanor of Castile, called Edward of Carnarvon for his birthplace in Wales. When trouble threatened with the new king of Fran...

Harrison, William Henry

(Encyclopedia)Harrison, William Henry, 1773–1841, 9th President of the United States (Mar. 4–Apr. 4, 1841), b. “Berkeley,” Charles City co., Va.; son of Benjamin Harrison (1726?–1791) and grandfather of B...

Murray, Anna Pauline "Pauli"

(Encyclopedia)Murray, Pauli, 1910–1985, American lawyer, priest, and activist, b. Baltimore, S.J.D. Yale University, 1965, MDiv, General Theological Seminary, 1976....

tap dance

(Encyclopedia)tap dance, theatrical dance form in which the dancer, wearing shoes with metal heel and toe taps, beats out complex, syncopated rhythms on the floor. After a slump in popularity in the 1960s, tap ...

Anne, queen of England, Scotland, and Ireland

(Encyclopedia)Anne, 1665–1714, queen of England, Scotland, and Ireland (1702–7), later queen of Great Britain and Ireland (1707–14), daughter of James II and Anne Hyde; successor to William III. Queen Anne ...

Locke, John

(Encyclopedia)Locke, John lŏk [key], 1632–1704, English philosopher, founder of British empiricism. Locke summed up the Enlightenment in his belief in the middle class and its right to freedom of conscience and ...

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