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Democritus

(Encyclopedia)Democritus dĭmŏkˈrĭtəs [key], c.460–c.370 b.c., Greek philosopher of Abdera; pupil of Leucippus. His theory of the nature of the physical world was the most radical and scientific attempted up ...

dry cleaning

(Encyclopedia)dry cleaning, process of cleaning fabrics without water. Special solvents and soaps are used so as not to harm fabrics and dyes that will not withstand the effects of ordinary soap and water. Dry clea...

Donleavy, J. P.

(Encyclopedia)Donleavy, J. P. (James Patrick Donleavy), 1926–2017, Irish-American novelist, b. Brooklyn, N.Y., studied Trinity College, Dublin. The son of Irish expatriates, he lived most of his life in Ireland a...

Saul

(Encyclopedia)Saul, first king of the ancient Hebrews. He was a Benjamite and anointed king by Samuel. Saul's territory was probably limited to the hill country of Judah and the region to the north, and his proximi...

center of mass

(Encyclopedia)center of mass, the point at which all the mass of a body may be considered to be concentrated in analyzing its motion. The center of mass of a sphere of uniform density coincides with the center of t...

Duane, William, American journalist

(Encyclopedia)Duane, William, 1760–1835, American journalist, b. near Lake Champlain, N.Y., of Irish parentage. He learned the printer's trade in Ireland and in 1787 went to Calcutta (now Kolkata), where he edite...

Dana, James Dwight

(Encyclopedia)Dana, James Dwight, 1813–95, American geologist, mineralogist, and naturalist, b. Utica, N.Y., grad. Yale, 1833. His studies of the S Pacific, NW United States, Europe, and elsewhere led to changes ...

Shahn, Ben

(Encyclopedia)Shahn, Ben (Benjamin Shahn), 1898–1969, American painter and graphic artist, b. Lithuania. Shahn emigrated to the United States in 1906. After working in lithography until 1930, his style crystalliz...

Sapir, Edward

(Encyclopedia)Sapir, Edward səpērˈ [key], 1884–1939, American linguist and anthropologist, b. Pomerania. Sapir was brought to the United States in 1889. After teaching at the Univ. of California and the Univ. ...

Carroll, Charles

(Encyclopedia)Carroll, Charles, 1737–1832, political leader in the American Revolution, signer of the Declaration of Independence, b. Annapolis, Md. After completing his education in France and England, he return...