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Roswell
(Encyclopedia)Roswell rŏzˈwĕl [key], city (1990 pop. 44,654), seat of Chaves co., SE N.Mex., near the Pecos River; settled 1869 as a trading post, inc. 1903. It is the trade, marketing, and rail center of an irr...Aroostook War
(Encyclopedia)Aroostook War, Feb.–May, 1839, border conflict between the United States and Canada. In 1838, Maine and New Brunswick both claimed territory left undetermined on the U.S.-Canadian border, including ...Battle of Britain
(Encyclopedia)Battle of Britain, in World War II, series of air battles between Great Britain and Germany, fought over Britain from Aug. to Oct., 1940. As a prelude to a planned invasion of England, the German Luft...Clearfield
(Encyclopedia)Clearfield, city (2020 pop. 31,364), Davis co., N Utah; inc. 1922. Hill Air Force Base, to the northeast, is the state's largest employer. Clearfield is...aerodynamics
(Encyclopedia)aerodynamics, study of gases in motion. As the principal application of aerodynamics is the design of aircraft, air is the gas with which the science is most concerned. Although aerodynamics is primar...guided missile
(Encyclopedia)guided missile, self-propelled, unmanned space or air vehicle carrying an explosive warhead. Its path can be adjusted during flight, either by automatic self-contained controls or remote human control...Cohen, Morris Raphael
(Encyclopedia)Cohen, Morris Raphael, 1880–1947, American philosopher, b. Minsk, Russia, grad. College of the City of New York, 1900, Ph.D. Harvard, 1906. He emigrated to the United States in 1892. At first an ins...commando
(Encyclopedia)commando, small, elite military raiding and assault unit or soldier. Although the word was coined in the Boer War (1899–1902), the role is as old as battles themselves. In 1940, when the British org...isinglass
(Encyclopedia)isinglass īˈzənglăsˌ [key], gelatinous semitransparent substance obtained by cleaning and drying the air bladders of the sturgeon, cod, hake, and other fishes. Isinglass is manufactured in Russia...Rølvaag, Ole Edvart
(Encyclopedia)Rølvaag, Ole Edvart ōˈlə ĕdˈvärt rölˈvôkh [key], 1876–1931, Norwegian-American novelist, b. Helgeland, Norway, grad. St. Olaf College, Northfield, Minn., 1905. He emigrated to the United S...Browse by Subject
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