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jack, mechanical device

(Encyclopedia)jack, mechanical device used to multiply a relatively small applied force so that it can lift and support heavy loads, or sometimes, move massive objects into a desired position. The lever jack, often...

Anderson, Clinton Presba

(Encyclopedia)Anderson, Clinton Presba, 1895–1975, U.S. government official and senator, b. Centerville, S.Dak. He had a newspaper and insurance background before he served New Mexico as treasurer (1933–34) and...

Lemmon, Jack

(Encyclopedia)Lemmon, Jack (John Uhler Lemmon 3d), 1925–2001, American actor, b. Newton, Mass., grad. Harvard (1947). He became famous in roles ranging from sardonic comedy to compelling drama, ultimately achievi...

Anderson, John Bayard

(Encyclopedia)Anderson, John Bayard, 1922–2017, U.S. politician, b. Rockford, Ill., grad. Univ. of Illinois (B.A. 1939, J.D. 1946), Harvard law school (LL.M. 1949). After serving in the army (1943–45) and pract...

Anderson, Philip Warren

(Encyclopedia)Anderson, Philip Warren, 1923–2020, American physicist, b. Indianapolis, Ind., Ph.D. Harvard, 1949. After graduation he worked at Bell Laboratories until 1984. From 1967 he also was on the faculty a...

Anderson, river, Canada

(Encyclopedia)Anderson, river, c.465 mi (750 km) long, rising in several lakes in N central Northwest Territories, Canada. It meanders north and west before receiving the Carnwath River and flowing north to Liverpo...

Yeats, Jack Butler

(Encyclopedia)Yeats, Jack Butler yāts [key], 1871–1957, Irish painter, son of the painter John Butler Yeats and brother of the poet William Butler Yeats. He began his career as an illustrator and produced his fi...

London, Jack

(Encyclopedia)London, Jack (John Griffith London), 1876–1916, American author, b. San Francisco. The illegitimate son of William Chaney, an astrologer, and Flora Wellman, a seamstress and medium, he had a poverty...

Layton, Jack

(Encyclopedia)Layton, Jack (John Gilbert Layton), 1950–2011, Canadian political leader, grad. McGill Univ. (B.A., 1970), York Univ. (M.A., 1971; Ph.D., 1983). A social democrat from a political family, he served ...

Dana, Charles Anderson

(Encyclopedia)Dana, Charles Anderson dāˈnə [key], 1819–97, American newspaper editor, b. Hinsdale, N.H. He was a member of the Brook Farm community for five years. In 1847 he began 15 years on the New York Tri...