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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 ...

Fassbinder, Rainer Werner

(Encyclopedia)Fassbinder, Rainer Werner rīˈnər vĕrˈnər fäsˈbĭnˌdər [key], 1946–82, German filmmaker, b. Bad Wörishofen, Bavaria. One of the most highly regarded and prolific directors of the post–Wo...

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...

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 ...

uncertainty principle

(Encyclopedia)uncertainty principle, physical principle, enunciated by Werner Heisenberg in 1927, that places an absolute, theoretical limit on the combined accuracy of certain pairs of simultaneous, related measur...

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...

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...

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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