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pulsar

(Encyclopedia) pulsar, in astronomy, a neutron star that emits brief, sharp pulses of energy instead of the steady radiation associated with other natural sources. The study of pulsars began when…

gamma radiation

(Encyclopedia) gamma radiation, high-energy photons emitted as one of the three types of radiation resulting from natural radioactivity. It is the most energetic form of electromagnetic radiation,…

electric fish

(Encyclopedia) electric fish, name for various fish that produce electricity by means of organs usually developed from modified muscle tissue. The electric eels of South America are freshwater…

sextant

(Encyclopedia) CE5 Sextant sextant, instrument for measuring the altitude of the sun or another celestial body; such measurements can then be used to determine the observer's geographical…

Kendrew, John Cowdery

(Encyclopedia) Kendrew, John Cowdery, 1917–97, British biochemist, grad. Cambridge (Ph.D. 1949). He was a fellow of Peterhouse College at Cambridge from 1947 to 1975 and was scientific adviser to the…

David Ray NAGLE, Congress, IA (1943)

NAGLE David Ray , a Representative from Iowa; born in Grinnell, Iowa, April 15, 1943; attended University of Northern Iowa, Cedar Falls, Iowa, 1961-1965; LL.B., University of Iowa Law School…

Ray John MADDEN, Congress, IN (1892-1987)

MADDEN Ray John , a Representative from Indiana; born in Waseca, Waseca County, Minn., February 25, 1892; attended the public schools and Sacred Heart Academy in his native city; the law…

Ray H. LaHOOD, Congress, IL (1945)

LaHOOD Ray H. , (father of Darin LaHood), a Representative from Illinois; born in Peoria, Peoria County, Ill., December 6, 1945; graduated from Spalding Institute, Peoria, Ill., 1963; attended…

Ray GREENE, Congress, RI (1765-1849)

Senate Years of Service: 1797-1801 Party: Federalist GREENE Ray , a Senator from Rhode Island; born in Warwick, R.I., February 2, 1765; pursued classical studies and graduated from Yale College…

Ossian RAY, Congress, NH (1835-1892)

RAY Ossian , a Representative from New Hampshire; born in Hinesburg, Chittenden County, Vt., December 13, 1835; moved to Irasburg, Vt., in early childhood; attended the common schools and an…