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blue shift
(Encyclopedia)blue shift or blueshift, in astronomy, the systematic displacement of individual lines in the spectrum of a celestial object toward the blue, or shorter wavelength, end of the visible spectrum. The am...blue vitriol
(Encyclopedia)blue vitriol, the pentahydrate of cupric sulfate. ...blue whale
(Encyclopedia)blue whale, a baleen whale, Balaenoptera musculus. Also called the sulphur-bottom whale and Sibbald's rorqual, it is the largest animal that has ever lived. Blue whales have been known to reach a leng...Pleasure Ridge Park
(Encyclopedia)Pleasure Ridge Park, uninc. town (1990 pop. 25,131), Jefferson co., N Ky. It is a residential suburb of Louisville.Elkhorn Tavern
(Encyclopedia)Elkhorn Tavern: see Pea Ridge.Mid-Atlantic Ridge
(Encyclopedia)Mid-Atlantic Ridge: see Atlantic Ocean. ...mid-ocean ridge
(Encyclopedia)mid-ocean ridge: see plate tectonics. ...Shull, Clifford
(Encyclopedia)Shull, Clifford, 1915–2001, American physicist, b. Pittsburgh, Pa. Educated at Carnegie Institute of Technology (now Carnegie Mellon University) and New York Univ. (Ph.D., 1941), Shull was on the st...Rhodesian ridgeback
(Encyclopedia)Rhodesian ridgeback, sometimes called the African lion hound, breed of large, muscular hound developed in South Africa in the 16th and 17th cent. It stands from 24 to 27 in. (61.0–68.6 cm) high at t...Forrest City
(Encyclopedia)Forrest City, city (2020 pop. 13,015), seat of St. Francis co., E central Ark., at the foot of Crowley's Ridge; inc. 1871. It is a rail and trade center...Browse by Subject
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