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Sheffield plate
(Encyclopedia) Sheffield plate, metalware of copper, silver-plated by fusion, originated at Sheffield, England. This process of plating was discovered c.1742 by a Sheffield cutler, Thomas Boulsover,…Pinkerton, Allan
(Encyclopedia) Pinkerton, Allan, 1819–84, American detective, founder of the Pinkerton National Detective Agency, b. Glasgow, Scotland. A cooper by trade, he emigrated to the United States in 1842…Ürümqi
(Encyclopedia) Ürümqi or UrumchiÜrümqiboth: &oomacr;r&oomacr;mˈchē [key], city (1994 est. pop. 1,130,300), capital of Xinjiang Uygur Autonomous Region, NW China, in the Dzungarian basin.…Evanston
(Encyclopedia) Evanston. <1> Residential city (2020 pop. 78,110), Cook co., NE Ill., on Lake Michigan; settled 1826, inc. 1892. A largely…Franklin, Rosalind Elsie
(Encyclopedia) Franklin, Rosalind Elsie, 1920–58, English molecular biologist and chemist, grad. Newnham College, Cambridge (1941). She spent most of the war years (1942–45) working for the British…Browne, Sir Thomas
(Encyclopedia) Browne, Sir Thomas, 1605–82, English author and physician, b. London, educated at Oxford and abroad, knighted (1671) by Charles II. His Religio Medici, in which Browne attempted to…Pierre Curie
Pierre Curie was a 19th century French scientist whose work with his wife, Marie Curie, led to some of the most important discoveries in modern physics and chemistry. After an unconventional…Charles Drew
Black American Dr. Charles Drew is called the father of the modern blood bank for his work in making possible the long-term storage of human plasma. Charles Drew grew up in Washington, D.C. and…U.S. Staffed Space Flight Programs
Mercury. Project Mercury, initiated in 1958 and completed in 1963, was the United States' first human-in-space program. It was designed to further knowledge about humanity's capabilities…Inventor of Ball Bearings
The Question: My son and a friend are working on a an 8th grade history project. Could you tell us who invented or patented bearings? He loves skateboarding…Trending
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