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cerium

(Encyclopedia)cerium sērˈēəm [key] [from the asteroid Ceres], metallic chemical element; symbol Ce; at. no. 58; at. wt. 140.116; m.p. 799℃; b.p. 3,426℃; sp. gr. 6.77 at 25℃; valence +3 or +4. Cerium is a ...

Schumann, Robert Alexander

(Encyclopedia)Schumann, Robert Alexander sho͞oˈmän [key], 1810–56, German composer. Both as a composer and as a highly articulate music critic he was a leader of the romantic movement. He studied theory with H...

Planck, Max

(Encyclopedia)Planck, Max mäks plängk [key], 1858–1947, German physicist. Seeking to explain the experimental spectrum (distribution of electromagnetic energy according to wavelength) of blackbody radiation, he...

intelligence

(Encyclopedia)intelligence, in psychology, the general mental ability involved in calculating, reasoning, perceiving relationships and analogies, learning quickly, storing and retrieving information, using language...

Würzburg

(Encyclopedia)Würzburg vürtsˈbo͝ork [key], city (1994 pop. 128,875), capital of Lower Franconia, Bavaria, S central Germany, on the Main River. It is an industrial city, the center of a wine-producing region, a...

Zürich

(Encyclopedia)Zürich tsüˈrĭkh [key], canton (1993 pop. 1,158,100), 668 sq mi (1,730 sq km), N Switzerland. The most populous Swiss canton, Zürich is bounded in part by the Lake of Zürich in the south and Germ...

Lübeck

(Encyclopedia)Lübeck lüˈbĕk [key], city (1994 pop. 217,270), Schleswig-Holstein, central Germany, on the Trave River near its mouth on the Baltic Sea. It is a major port and a commercial and industrial center; ...

Stein, Karl, Freiherr vom und zum

(Encyclopedia)Stein, Karl, Freiherr vom und zum kärl frīˈhĕr fəm o͝ont tso͝om shtīn [key], 1757–1831, Prussian statesman and reformer. Rising through the Prussian bureaucracy, he became minister of commer...

motet

(Encyclopedia)motet mōtĕtˈ [key], name for the outstanding type of musical composition of the 13th cent. and for a different type that originated in the Renaissance. The 13th-century motet, a creation (c.1200) o...

oratorio

(Encyclopedia)oratorio ôrətôrˈēō [key], musical composition employing chorus, orchestra, and soloists and usually, but not necessarily, a setting of a sacred libretto without stage action or scenery. The imme...