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Cogswell, Joseph Green

(Encyclopedia)Cogswell, Joseph Green kŏgzˈwĕl, –wəl [key], 1786–1871, American librarian and bibliographer, b. Ipswich, Mass. After studying abroad, Cogswell taught mineralogy and geology at Harvard and bec...

Gloria in excelsis

(Encyclopedia)Gloria in excelsis ĕksĕlˈsĭs [key] [Lat.,=glory in the highest], the Angelic Hymn or greater doxology, ancient Christian hymn beginning, according to the Authorized Version, “Glory be to God on ...

Shays, Daniel

(Encyclopedia)Shays, Daniel shāz [key], c.1747–1825, American soldier and insurrectionist, b. probably in Hopkinton, Mass. A farmer from W Massachusetts, he fought the British in the American Revolution and was ...

Phillips Academy

(Encyclopedia)Phillips Academy, at Andover, Mass.; college preparatory boarding and day school; opened 1778, chartered 1780 by Samuel Phillips. Founded for boys, it is the oldest incorporated academy in the United ...

Clovis

(Encyclopedia)Clovis. 1 City (2020 pop. 120,124, Fresno co., S central Calif., near the foothills of the Sierra Nevada range; inc. 1912. It is a growing trade ...

cloud chamber

(Encyclopedia)cloud chamber, device used to detect elementary particles and other ionizing radiation. A cloud chamber consists essentially of a closed container filled with a supersaturated vapor, e.g., water in ai...

argon

(Encyclopedia)argon ärˈgŏn [key] [Gr.,=inert], gaseous chemical element; symbol Ar; at. no. 18; at. wt. 39.948; m.p. −189.2℃; b.p. −185.7℃; density 1.784 grams per liter at STP; valence 0. Argon is a col...

caisson

(Encyclopedia)caisson kāˈsən, –sŏn [key] [Fr.,=big box], in engineering, a chamber, usually of steel but sometimes of wood or reinforced concrete, used in the construction of foundations or piers in or near a...

metric system

(Encyclopedia)CE5 metric system, system of weights and measures planned in France and adopted there in 1799; it has since been adopted by most of the technologically developed countries of the world. It is based...

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...