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Hahn, Otto

(Encyclopedia)Hahn, Otto ôˈtō hän [key], 1879–1968, German chemist and physicist. His important contributions in the field of radioactivity include the discovery of several radioactive substances, the develop...

Hahn, Reynaldo

(Encyclopedia)Hahn, Reynaldo, 1875–1947, French musician. Hahn was born in Venezuela and was taken to Paris at three. Among his teachers was Massenet. He wrote much incidental music, songs, operettas, and other w...

Hahn, James Kenneth

(Encyclopedia)Hahn, James Kenneth, 1951–, American politician. Born into a Los Angeles political family, he is a Democratic lawyer who first served in city government (1981–85) as controller. As city attorney (...

Meitner, Lise

(Encyclopedia)Meitner, Lise lēˈzə mītˈnər [key], 1878–1968, Austrian-Swedish physicist and mathematician. She was professor at the Univ. of Berlin (1926–33). A refugee from Germany after 1938, she became ...

Dix, Otto

(Encyclopedia)Dix, Otto, 1891–1969, German painter and draftsman. Dix fought in World War I and returned to Düsseldorf haunted by the horrors he had witnessed. In 1924 he published War, a series of 50 etchings, ...

Jespersen, Otto

(Encyclopedia)Jespersen, Otto ŏˈtō yĕsˈpərsən [key], 1860–1943, Danish philologist. Professor of English language and literature at the Univ. of Copenhagen and later rector there, Jespersen first earned a ...

Meyerhof, Otto

(Encyclopedia)Meyerhof, Otto ôˈtō mīˈərhōf [key], 1884–1951, American physiologist, b. Germany, M.D. Heidelberg, 1909. He was professor at the Univ. of Kiel (1912–24) and at the Univ. of Berlin and direc...

Loewi, Otto

(Encyclopedia)Loewi, Otto lōˈē [key], 1873–1961, American physiologist and pharmacologist, b. Frankfurt, Germany. He was professor of pharmacology (1909–38) at the Univ. of Graz, Austria, until forced into e...

Nicolai, Otto

(Encyclopedia)Nicolai, Otto ôˈtō nēkōläˈē, nēˈkōlī [key], 1810–49, German composer. His opera Il Templario (1840), after Scott's Ivanhoe, was successful, but his masterpiece was the comic opera The Me...

Neurath, Otto

(Encyclopedia)Neurath, Otto, 1882–1945, Austrian philosopher, social scientist, and design theorist, b. Vienna. During the 1920s and 30s he was both a Marxist and a member of the Vienna Circle, an exponent of log...