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Iohannis, Klaus Werner

(Encyclopedia)Iohannis, Klaus Werner, 1959–, Romanian political leader, b. Sibiu, grad. Babeş-Bolyai Univ., 1983. An ethnic German and a physics teacher and public school official, he was elected mayor of Sibiu ...

Henze, Hans Werner

(Encyclopedia)Henze, Hans Werner häns vĕrˈnər hĕnˈtsə [key], 1926–2012, German composer, b. Gütersloh. Henze was a pupil of Wolfgang Fortner and René Leibowitz. His early works were influenced by Stravin...

Werner, Abraham Gottlob

(Encyclopedia)Werner, Abraham Gottlob äˈbrähäm gôtˈlōp vĕrˈnər [key], 1750–1817, German geologist. In 1775 he became inspector and teacher in the mining academy at Freiberg, which through his efforts be...

Werner, Anton Alexander von

(Encyclopedia)Werner, Anton Alexander von änˈtôn älĕksänˈdər fən vĕrˈnər [key], 1843–1915, German historical painter, portraitist, and illustrator. He was director (1875–1915) of the Berlin Academy....

Siemens, Ernst Werner von

(Encyclopedia)Siemens, Ernst Werner von ĕrnst vĕrˈnər fən zēˈməns [key], 1816–92, German electrical engineer and inventor. He was a founder and director of Siemens and Halske, a firm that made electrical ...

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...

Teller, Edward

(Encyclopedia)Teller, Edward, 1908–2003, American physicist, b. Budapest, Hungary, Ph.D. Univ. of Leipzig, 1930, where he studied under Werner Heisenberg. Fleeing the Nazis, he came to the United States in 1935 a...

Buch, Christian Leopold, Freiherr von

(Encyclopedia)Buch, Christian Leopold, Freiherr von krĭsˈtyän lāˈōpôlt frīˈhĕr fən bo͞okh [key], 1774–1853, German geologist and paleontologist, graduate of the mining academy, Freiberg, Germany, and ...

complementarity principle

(Encyclopedia)complementarity principle, physical principle enunciated by Niels Bohr in 1928 stating that certain physical concepts are complementary. If two concepts are complementary, an experiment that clearly i...

Cayley, Arthur

(Encyclopedia)Cayley, Arthur kāˈlē [key], 1821–95, English mathematician. He was admitted to the bar in 1849. In 1863 he was appointed first Sadlerian professor of mathematics at Cambridge. His researches, whi...

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