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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, with a very short ...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 knifefish unrelated to...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 position or for other n...Thomas, Gospel of
(Encyclopedia)Thomas, Gospel of, a collection of sayings, composed originally in Greek, attributed to the “living” (i.e., resurrected) Jesus. Some of the sayings were previously known from papyri discovered at ...North Little Rock
(Encyclopedia)North Little Rock, city (1990 pop. 61,741), Pulaski co., central Ark., on the Arkansas River opposite Little Rock; settled c.1856, inc. as a city 1903. North Little Rock lies in a cotton, rice, soybea...Gifford, Sanford Robinson
(Encyclopedia)Gifford, Sanford Robinson, 1823–80, American painter, b. Greenfield, N.Y. A major painter of the American movement known as luminism, Gifford, who was influenced by Thomas Cole early in his career, ...Luce, Henry Robinson
(Encyclopedia)Luce, Henry Robinson, 1898–1967, American publisher, b. Tengchow (now Penglai), China, the son of a Presbyterian missionary. After studying at Yale and Oxford, he worked (1921–22) as a reporter on...Robinson, James Harvey
(Encyclopedia)Robinson, James Harvey, 1863–1936, American historian, b. Bloomington, Ill. He taught history at the Univ. of Pennsylvania (1891–95) and Columbia (1895–1919), becoming a full professor in 1895. ...Berdychiv
(Encyclopedia)Berdychiv byĭrdēˈchĭf [key], Rus. Berdichev, city, in central Ukraine, on the Hnylopyat R...lactose
(Encyclopedia)lactose lăkˈtōs [key] or milk sugar, white crystalline disaccharide (see carbohydrate). It has the same empirical formula (C12H22O11) as sucrose (cane sugar) and maltose but differs from both in st...Browse by Subject
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