(Encyclopedia) old English sheepdog, breed of large, wiry working dog developed in England in the early 19th cent. It stands from 21 to 25 in. (53.3–63.5 cm) high at the shoulder and weighs from 55…
(Encyclopedia) flame test, test used in the identification of certain metals. It is based on the observation that light emitted by any element gives a unique spectrum when passed through a…
(Encyclopedia) flying dragon, gliding lizard of the genus Draco, found in tropical forests of SE Asia. There are about 15 species. Most are about 8 in. (20 cm) long. On either side of the lizard's…
(Encyclopedia) verdigrisverdigrisvûrˈdəgrēsˌ [key], one of three copper acetates: blue verdigris, Cu(CH3COO)2·CuO·6H2O; green verdigris, 2Cu(CH3COO)2·CuO·6H2O; or neutral verdigris, Cu(CH3COO)2·H2O;…
(Encyclopedia) tallittallittälētˈ [key], in Judaism, four-cornered, fringed shawl worn by males during the morning prayers. It is donned before putting on the phylacteries, except on Yom Kippur when…
(Encyclopedia) Amano, Hiroshi, 1960–, Japanese physicist, Ph.D. Nagoya Univ., Japan, 1989. He is a professor at Nagoya Univ. in Japan. Amano is the joint recipient with Shuji Nakamura and Isamu…
(Encyclopedia) Macquarie, river, 590 mi (950 km) long, rising in the Blue Mts., E New South Wales, Australia, and flowing NW to the Darling River. It flows through an important sheep- and wheat-…
(Encyclopedia) skin diving, act of swimming freely underwater. It is done with the aid of a face mask, swimming fins for the feet, and either a snorkel breathing tube or scuba [acronym for self-…
(Encyclopedia) subduction zone, large-scaled narrow region in the earth's crust where, according to plate tectonics, masses of the spreading oceanic lithosphere bend downward into the earth along the…
(Encyclopedia) Ballard, Robert DuaneBallard, Robert Duanebălˈərd [key], 1942–, American marine geologist, b. Wichita, Kans.; Ph.D. Univ. of Rhode Island, 1974. From 1969 to 1997 he was associated…
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