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Anaximander

(Encyclopedia)Anaximander ənăkˌsĭmănˈdər [key], c.611–c.547 b.c., Greek philosopher, b. Miletus; pupil of Thales. He made the first attempt to offer a detailed explanation of all aspects of nature. Anaxima...

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...

Lacan, Jacques

(Encyclopedia)Lacan, Jacques zhäk läkäNˈ [key], 1901–81, French psychoanalyst. After receiving a medical degree, he became a psychoanalyst in Paris. Lacan was infamous for his unorthodox methods of treatment,...

Karmathians

(Encyclopedia)Karmathians or Carmathians kärmāˈthēənz [key], a Muslim sect of the 9th and 10th cent., similar to the Assassin sect. They were part of a movement for social reform that spread widely through Isl...

electrostatics

(Encyclopedia)electrostatics, study of phenomena associated with charged bodies at rest (see charge; electricity). A charged body has an excess of positive or negative charges, a condition usually brought about by ...

Pratt, Charles, 1st Earl Camden

(Encyclopedia)Pratt, Charles, 1st Earl Camden, 1714–94, British jurist. Appointed (1761) chief justice of the Court of Common Pleas, he earned wide popularity as a result of his ruling in Entick v. Carrington (17...