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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 (...

Lilienthal, Otto

(Encyclopedia)Lilienthal, Otto ôˈtō lēˈlyəntäl [key], 1848–96, German aeronautical engineer, a pioneer in his experiments with gliders. He made major developments in the glider based on his observations of...

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...

Bütschli, Otto

(Encyclopedia)Bütschli, Otto ôˈtō büchˈlē [key], 1848–1920, German zoologist. He was professor of zoology at the Univ. of Heidelberg. His researches on invertebrate animals advanced knowledge of the develo...

Sverdrup, Otto

(Encyclopedia)Sverdrup, Otto svĕrˈdro͝op [key], 1855–1930, Norwegian arctic explorer. A companion of Fridtjof Nansen on the voyage across Greenland in 1888 and on Nansen's later (1893–96) polar expedition, ...

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 ...

Wagner, Otto

(Encyclopedia)Wagner, Otto ôtˈō vägˈnər [key], 1841–1918, Austrian architect. A structural rationalism was exhibited in his stations for the Vienna city railroad, built in the 1890s. His later works, showin...

Brahm, Otto

(Encyclopedia)Brahm, Otto ôˈtō bräm [key], 1856–1912, German theatrical director, manager and critic. Inspired by the work of Antoine in Paris, he founded a theater, the Freie Bühne, in Berlin in 1889. There...