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Cambridge, city, Canada

(Encyclopedia)Cambridge kāmˈbrĭj [key], city, S Ont., Canada, on the Grand River, NW of Hamilton. It was ...

Heron of Alexandria

(Encyclopedia)Heron of Alexandria hērˈŏn [key] or Hero, mathematician and inventor. The dates of his birth and death are unknown; conjecture places them between the 2d cent. b.c. and the 3d cent. a.d. He is beli...

Chelsea ware

(Encyclopedia)Chelsea ware, chinaware made in the mid-18th cent. at a factory in Chelsea, London. The earliest specimens extant are dated 1745 and have the potter's mark of a triangle and the word Chelsea. Nicholas...

truss

(Encyclopedia)CE5 A. King post truss B. Queen, with princess posts truss, in architecture and engineering, a supporting structure or framework composed of beams, girders, or rods commonly of steel or wood lying...

Irvine, William

(Encyclopedia)Irvine, William ûrˈvĭn [key], 1741–1804, American soldier, b. Ireland. He studied medicine in Ireland and after 1764 practiced in Carlisle, Pa. He was called to service as colonel of a Pennsylvan...

Chapel Hill

(Encyclopedia)Chapel Hill, town (2020 pop. 61,960), Orange co., central N.C., at the edge of the Piedmont; founded 1792, inc. 1851. Primarily residential, the town's ...

Big Bend National Park

(Encyclopedia)Big Bend National Park, 801,163 acres (324,471 hectares), W Tex.; authorized 1935, est. 1944. It is a triangle formed where the Rio Grande runs southeast then northeast in a big bend along the U.S.-Me...

Sennett, Mack

(Encyclopedia)Sennett, Mack sĕnˈĭt [key], 1884–1960, American movie director and producer, b. Danville, Que. In 1909 he began working for D. W. Griffith at the Biograph Company, and in 1912 he organized his ow...

Falluja, Al

(Encyclopedia)Falluja, Al äl fälo͞oˈjə [key], town, Anbar prov., central Iraq, on the Euphrates. A strategic city ...

eider, in zoology

(Encyclopedia)eider: see duck.