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Itasca, Lake

(Encyclopedia)Itasca, Lake ītăsˈkə [key], shallow lake, 2 sq mi (5.2 sq km), in a pine-wooded swampy region, NW Minn. Henry R. Schoolcraft identified the lake (1832) as the source of the Mississippi; stepping s...

Fischer, Edmond Henri

(Encyclopedia)Fischer, Edmond Henri, 1920–, American biochemist, b. Shanghai, China. As researchers at the Univ. of Washington in Seattle, Fischer and Edwin G. Krebs discovered a biological regulatory mechanism, ...

Fischer, Hans

(Encyclopedia)Fischer, Hans, 1881–1945, German organic chemist, Ph.D. Univ. of Marburg, 1904; M.D. Univ. of Munich, 1908. Fischer was a professor at the Univ. of Innsbruck from 1916 to 1918 and at the Univ. of Vi...

American Association for the Advancement of Science

(Encyclopedia)American Association for the Advancement of Science (AAAS), private organization devoted to furthering the work of scientists and improving the effectiveness of science in the promotion of human welfa...

Falmouth, town, United States

(Encyclopedia)Falmouth, town (2020 pop. 32,517), Barnstable co., SE Mass., on Cape Cod; settled c.1660, inc. 1686. Once a whaling and boatbuilding center, the town ha...

prosthetic group

(Encyclopedia)prosthetic group, non-amino acid portions of certain protein molecules. The key part of the prosthetic group may be either organic (such as a vitamin) or inorganic (such as a metal) and is usually req...

cruiser

(Encyclopedia)cruiser, large, fast, moderately armed warship, intermediate in type between the aircraft carrier and the destroyer. During World War II, battle cruisers operated as small battleships, combining in on...

Quantico

(Encyclopedia)Quantico, town, (2000 pop. 561), Prince William Co., NE Va., on the Potomac River, 29 mi (47 km) SSW of Washington, D.C.; inc. 1927, reinc. 1934. It is now the site of the FBI training academy, and is...

catapult

(Encyclopedia)catapult kătˈəpŭltˌ [key], mechanism used to throw missiles in ancient and medieval warfare. At first, catapults were specifically designed to shoot spears or other missiles at a low trajectory (...

Fort Bragg

(Encyclopedia)Fort Bragg, U.S. army base, 11,136 acres (4,507 hectares), E N.C., N of Fayetteville; est. 1918. Originally an artillery post, it is now the principal U.S. army airborne-training center and the site o...