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Weber, Ernst Heinrich

(Encyclopedia)Weber, Ernst Heinrich vāˈbər [key], 1795–1878, German physiologist. He was a professor at the Univ. of Leipzig (1821–71) and is known for his work on touch and for the formulation of Weber's l...

Bloch, Ernst

(Encyclopedia)Bloch, Ernst, 1885–1977, German Marxist philosopher. He taught at the Univ. of Leipzig (1918–33), drifting toward Marxist thought during the 1920s. He fled the Nazis after 1933, moving first to Sw...

Stahl, Georg Ernst

(Encyclopedia)Stahl, Georg Ernst gāˈôrkh ĕrnst shtäl [key], 1660–1734, German physician and chemist. He taught (1694–1716) at the Univ. of Halle, then went to Berlin as court physician. He is known for his...

Mayr, Ernst

(Encyclopedia)Mayr, Ernst ĕrnst mīr [key], 1904–2005, American zoologist and author, b. Kempten, Germany. He began his career in Berlin and emigrated to the United States in 1931, where, until 1953, he was asso...

Payer, Julius von

(Encyclopedia)Payer, Julius von pīˈər [key], 1842–1915, Austrian explorer and painter. While on an expedition (1872–74) to navigate the Northeast Passage with Karl Weyprecht, Payer accidentally found Franz J...

biogenetic law

(Encyclopedia)biogenetic law, in biology, a law stating that the earlier stages of embryos of species advanced in the evolutionary process, such as humans, resemble the embryos of ancestral species, such as fish. T...

Ruska, Ernst

(Encyclopedia)Ruska, Ernst, 1906–88, German electrical engineer. By applying the discovery that electron waves are 100,000 times shorter than those of light, Ruska built a microscope that used a beam of electrons...

Jaspers, Karl

(Encyclopedia)Jaspers, Karl kärl yäsˈpərs [key], 1883–1969, German philosopher and psychopathologist, b. Oldenburg. After receiving his medical degree (1909) he became (1914) lecturer in psychology and in 192...

Gegenbaur, Karl

(Encyclopedia)Gegenbaur, Karl kärl gāˈgənbour [key], 1826–1903, German anatomist. A professor at the universities of Jena (1855–73) and Heidelberg (1873–1901), he was influential as a teacher. He emphasiz...

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