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Ride, Sally Kristen

(Encyclopedia)Ride, Sally Kristen 1951–2012, American astrophysicist and astronaut, b. Encino, Calif. With an M.A. in physics (1975) and a Ph.D. in astrophysics from Stanford Univ., she joined NASA in 1978, where...

Riess, Adam Guy

(Encyclopedia)Riess, Adam Guy, 1969–, American astrophysicist, b. Washington, D.C., Ph.D. Harvard, 1996. He has been an astronomer at the Space Telescope Science Institute in Baltimore, Md., since 1999 and a prof...

Robbins, John Bennet

(Encyclopedia)Robbins, John Bennet, 1932–2019, American physician and microbiologist, b. Brooklyn, N.Y., M.D. New York Univ., 1959. He did research at the Weizmann Institute of Science in Israel and taught at the...

Baron, Salo Wittmayer

(Encyclopedia)Baron, Salo Wittmayer säˈlō vĭtˈmīər bärônˈ [key], 1895–1989, Jewish historian and educator, b. Galicia. He was taken as a child to Vienna, where he later studied at the university, earnin...

Compton, Arthur Holly

(Encyclopedia)Compton, Arthur Holly, 1892–1962, American physicist, b. Wooster, Ohio, grad. College of Wooster (B.S., 1913), Ph.D. Princeton, 1916. He was professor and head of the department of physics at Washin...

Abdul-Mahdi, Adel

(Encyclopedia)Abdul-Mahdi, Adel, 1942–, Iraqi political leader. Born into a prominent Shiite family, he joined the Ba'ath party in the early 1960s, then left the party and went into self-exile in France in 1969. ...

checkers

(Encyclopedia)checkers, game for two players, known in England as draughts. It is played on a square board, divided into 64 alternately colored—usually red and black or white and black—square spaces, identical ...

Geertz, Clifford James

(Encyclopedia)Geertz, Clifford James gĭrts [key], 1926–2006, American cultural anthropologist, b. San Francisco. He was a professor of anthropology at the Univ. of Chicago from 1960 to 1970, when he became a pro...

Gesner, Konrad von

(Encyclopedia)Gesner, Konrad von kônˈrät fən gĕsˈnər [key], 1516–65, Swiss scientist and bibliographer. Gesner was noted for his scholarship and erudition in almost every field of knowledge. He lived in Z�...

Gibbs, Josiah Willard

(Encyclopedia)Gibbs, Josiah Willard, 1839–1903, American mathematical physicist, b. New Haven, Conn., grad. Yale, 1858. He studied abroad and was professor of mathematical physics at Yale from 1871. His great con...