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Collingwood
(Encyclopedia)Collingwood, town, S Ont., Canada at the south end of Georgian Bay, an arm of Lake Huron. Collingwood is a shipbuilding center and has one of the larges...screw
(Encyclopedia)screw, simple machine consisting essentially of a solid cylinder, usually of metal, around which an inclined plane winds spirally, either clockwise or counterclockwise. It is used to fasten one object...copper sulfate
(Encyclopedia)copper sulfate, common name for the blue crystalline heptahydrate of cupric sulfate, in which copper has valence +2. It may also refer to cuprous sulfate (Cu2SO4), in which copper has valence +1. ...quasar
(Encyclopedia)quasar kwāˈsär [key], one of a class of blue celestial objects having the appearance of stars when viewed through a telescope and currently believed to be the most distant and most luminous objects...Peters, Samuel
(Encyclopedia)Peters, Samuel, 1735–1826, American clergyman and historian, b. Hebron, Conn. Because of his Loyalist sympathies, he fled to England in 1774. There he wrote for English periodicals and published A G...Damascus ware
(Encyclopedia)Damascus ware, early siliceous-glazed semiporcelain produced in Damascus. The most common decoration is in blue and black. However, purple, sage green, and, rarely, a red can be found. Made mainly in ...Edinburgh
(Encyclopedia)Edinburgh, Town (2020 pop. 4618), Bartholomew, Johnson, and Shelby cos; S central Ind; est. c. 1823. The town is a suburb of Columbus, In., near the juncture of the Big Blue River ...Rickover, Hyman George
(Encyclopedia)Rickover, Hyman George, 1900–1986, American admiral, b. Russia. In World War II he served as head of the electrical section of the navy's Bureau of Ships. After the war he was assigned (1946) to the...Means, Russell
(Encyclopedia)Means, Russell, 1939–2012, Native American activist, b. Pine Ridge Indian Reservation, S.Dak. An Oglala Sioux, he grew up near San Francisco, and attended four colleges but never graduated. He joine...mansard roof
(Encyclopedia) CE5 Mansard roof mansard roof mănˈsärd [key], type of roof, so named because it was frequently used by the French architect François Mansart. It was not devised by him but was used early in th...Browse by Subject
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