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thermometer

(Encyclopedia)thermometer, instrument for measuring temperature. Galileo and Sanctorius devised thermometers consisting essentially of a bulb with a tubular projection, the open end of which was immersed in a liqui...

United States Naval Observatory

(Encyclopedia)United States Naval Observatory, a federal astronomical observatory, located in Washington, D. C. It evolved from the Navy's oldest scientific institution, the Depot of Charts and Instruments, founded...

penance

(Encyclopedia)penance pĕnˈəns [key], sacrament of the Roman Catholic and Orthodox Eastern churches. By it the penitent (the person receiving the sacrament) is absolved of his or her sins by a confessor (the pers...

linear programming

(Encyclopedia)linear programming, solution of a mathematical problem concerning maximum and minimum values of a first-degree (linear) algebraic expression, with variables subject to certain stated conditions (restr...

Cooper, Gary

(Encyclopedia)Cooper, Gary, 1901–61, American film actor, b. Helena, Mont., as Frank James Cooper. His first important starring role in A Farewell to Arms (1933) was followed by such films as Mr. Deeds Goes to To...

Gordon, Bruce S.

(Encyclopedia)Gordon, Bruce S., 1946–, African-American business executive and civil-rights leader, b. Camden, N.J.; grad. Gettysburg College (B.A., 1968), Massachusetts Institute of Technology (M.S., 1988). Gord...

forsythia

(Encyclopedia)forsythia fôrsĭthˈēə [key], common name for any member of the small genus Forsythia of the family Oleaceae (olive family), European and Asian shrubs with abundant bell-shaped yellow flowers that ...

Störmer, Horst Ludwig

(Encyclopedia)Störmer, Horst Ludwig, 1949–, German physicist, Ph.D. Univ. of Stuttgart, 1977. He joined the research staff at Bell Labs in Murray Hill, N.J., in 1978. Störmer and Daniel Tsui were co-recipients,...

Smith, George Elwood

(Encyclopedia)Smith, George Elwood, 1930–, American physicist, b. White Plains, N.Y., Ph.D., Univ. of Chicago, 1959. Smith was a researcher at Bell Laboratories in Murray Hill, N.J., from 1959 until his retiremen...

genealogy

(Encyclopedia)genealogy jēˌnēŏlˈəjē, –ălˈ–, jĕ– [key], the study of family lineage. Genealogies have existed since ancient times. Family lineage was originally transmitted through oral tradition and...