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Aetolian League

(Encyclopedia)Aetolian League, confederation centering in the cities of Aetolia. It was formed in the 4th cent. b.c. and began to gain power in the 3d cent. in opposing the Achaean League and the Macedonians. At it...

Richards, Theodore William

(Encyclopedia)Richards, Theodore William, 1868–1928, American chemist, b. Germantown, Pa., Ph.D. Harvard, 1888. Richards was a professor at Harvard from 1891 until his death in 1928. In 1914 he received the Nobel...

scale, in weights and measures

(Encyclopedia)scale, in weights and measures, instruments for determining weight, generally for other than laboratory use. For the principles of operation of all weighing devices, see balance. Platform scales utili...

International Union of Pure and Applied Chemistry

(Encyclopedia)International Union of Pure and Applied Chemistry (IUPAC), an international organization est. 1919 to advance the chemical sciences and contribute to the application of chemistry to the service of hum...

Commerce, United States Department of

(Encyclopedia)Commerce, United States Department of, federal executive department charged with promoting U.S. economic development and technological advancement. In Feb., 1903, the Congress established a Department...

English units of measurement

(Encyclopedia)English units of measurement, principal system of weights and measures used in a few nations, the only major industrial one being the United States. It actually consists of two related systems—the U...

Newlands, John Alexander Reina

(Encyclopedia)Newlands, John Alexander Reina, 1838–98, British chemist. He studied at the Royal College of Chemistry in London and worked as an industrial chemist. Newlands prepared the first periodic table of el...

Priscian

(Encyclopedia)Priscian (Priscianus Caesariensis) prĭshˈən [key], fl. 500, Latin grammarian, b. Caesarea in Mauretania. Priscian taught grammar at Constantinople. His Commentarii grammatici, in 18 books, was long...

candle, unit of luminous intensity

(Encyclopedia)candle, in weights and measures, unit of luminous intensity; it is defined as 1⁄60 of the intensity of a blackbody, or ideal radiator, at the temperature at which platinum solidifies (2,046K). The...

Guillaume, Charles Édouard

(Encyclopedia)Guillaume, Charles Édouard shärl ādwärˈ gēyōmˈ [key], 1861–1938, Swiss physicist and metrologist, Ph.D. Zürich Polytechnic (now the Federal Institute of Technology), 1882. Guillaume joined ...
 

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