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fluorescence

(Encyclopedia)fluorescence flo͝orĕsˈəns [key], luminescence in which light of a visible color is emitted from a substance under stimulation or excitation by light or other forms of electromagnetic radiation or ...

Almquist, Carl Jonas Love

(Encyclopedia)Almquist, Carl Jonas Love kärl yo͞oˈnäs lo͞oˈvə älmˈkvĭst [key], 1793–1866, Swedish writer. He was one of the few Swedish authors developing the novel in the period 1830–50. At first a s...

Jacobi, Carl Gustav Jacob

(Encyclopedia)Jacobi, Carl Gustav Jacob kärl go͝osˈtäf yäˈkôp yäkôˈbē [key], 1804–51, German mathematician. He was an outstanding teacher and was professor of mathematics at Königsberg (1827–42) and...

Bach, Carl Philipp Emanuel

(Encyclopedia)Bach, Carl Philipp Emanuel bäkh [key], 1714–88, German composer; second son of J. S. Bach, his only teacher. While harpsichordist at the court of Frederick the Great, where his chief duty for 28 y...

Ludwig, Carl Friedrich Wilhelm

(Encyclopedia)Ludwig, Carl Friedrich Wilhelm kärl frēˈdrĭkh vĭlˈhĕlm lo͞otˈvĭkh [key], 1816–95, German physiologist. He became world famous as professor (from 1865) and head of the physiological institu...

Van Doren, Carl (Clinton)

(Encyclopedia)Van Doren, Carl (Clinton), 1885–1950, American editor and author, b. Hope, Vermilion co., Ill., grad. Univ. of Illinois, 1907, Ph.D. Columbia, 1911; brother of Mark Van Doren. He lectured at Columbi...

Spitteler, Carl Friedrich Georg

(Encyclopedia)Spitteler, Carl Friedrich Georg kärl frēˈdrĭkh gāˈôrkh shpĭtˈələr [key], 1845–1924, Swiss poet, whose pseudonym was Carl Felix Tandem. He was awarded the 1919 Nobel Prize in Literature. H...

Aggrey, James Emman Kwegyir

(Encyclopedia)Aggrey, James Emman Kwegyir ĕmˈən kwĕgˈyĭr ăgˈrē [key], 1875–1927, African educator and missionary, b. Anamabu, Gold Coast (now Ghana). Educated at Livingstone College, he taught there for ...

Cleveland, cities, United States

(Encyclopedia)Cleveland. 1 City (2020 pop. 372,674), seat of Cuyahoga co., NE Ohio, on Lake Erie at the mouth of the Cuyahoga River; laid out (1796) by Moses ...

mortar, in warfare

(Encyclopedia)mortar, in warfare, term originally applied to certain types of artillery with high trajectories, but later applied to an infantry weapon that consists of a tube supported by a bipod that fires a proj...