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engineering
(Encyclopedia)engineering, profession devoted to designing, constructing, and operating the structures, machines, and other devices of industry and everyday life. Until the Industrial Revolution there were only t...Humboldt, Alexander, Freiherr von
(Encyclopedia)Humboldt, Alexander, Freiherr von hŭmˈbōlt, Ger. älĕksänˈdər frīˈhĕr fən ho͝omˈbôlt [key], 1769–1859, German naturalist, inventor, explorer, and author, the most eminent scientist of ...Cenozoic era
(Encyclopedia)Cenozoic era sēnəzōˈĭk, sĕn– [key], last major division of geologic time (see Geologic Timescale, tablegeologic timescale, table) lasting from 65 million years ago to the present. The Cenozoic...Oxford, University of
(Encyclopedia)Oxford, University of, at Oxford, England, one of the oldest English-language universities in the world. The university was a leading center of learning throughout the Middle Ages; such scholars as Ro...South, the
(Encyclopedia)South, the, region of the United States embracing the southeastern and south-central parts of the country. Traditionally, all states S of the Mason-Dixon Line and the Ohio River (except West Virginia)...National Association for the Advancement of Colored People
(Encyclopedia)National Association for the Advancement of Colored People (NAACP), organization composed mainly of American blacks, but with many white members, whose goal is the end of racial discrimination and seg...Houston
(Encyclopedia)Houston, city (2020 pop. 2,304,580), seat of Harris co., SE Tex., a deepwater port on the Houston Ship Channel; inc. 1837. Harrisburg (now part of Hou...Gettysburg campaign
(Encyclopedia)Gettysburg campaign, June–July, 1863, series of decisive battles of the U.S. Civil War. The Gettysburg battles included more than 160,000 soldiers and many camp laborers. These included thousands ...Webster, Daniel
(Encyclopedia)Webster, Daniel, 1782–1852, American statesman, lawyer, and orator, b. Salisbury (now in Franklin), N.H. As a U.S. Senator from Massachusetts (1827–41), he became a leading political figure of t...climate
(Encyclopedia)climate, average condition of the atmosphere near the earth's surface over a long period of time, taking into account temperature, precipitation (see rain), humidity, wind, barometric pressure, and ot...Browse by Subject
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