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Otto, Frei Paul

(Encyclopedia)Otto, Frei Paul ôˈtō [key], 1925–2015, German architect. Most notable for his tensile and pneumatic structures, Otto was among the first major architects to experiment with lightweight design. H...

Otto, Nikolaus August

(Encyclopedia)Otto, Nikolaus August nēˈkōlous ouˈgo͝ost ôˈtō [key], 1832–91, German engineer. He was coinventor (1867) of an internal-combustion engine, and he devised (1876) the four-stroke Otto cycle, w...

Otto of Freising

(Encyclopedia)Otto of Freising frīˈzĭng [key], b. after 1111, d. 1158, German chronicler, bishop of Freising. He was a son of Leopold III of Austria, a half-brother of Emperor Conrad III, and an uncle of Emperor...

Otto the Great

(Encyclopedia)Otto the Great: see Otto I, Holy Roman emperor. ...

Pérez Molina, Otto

(Encyclopedia)Pérez Molina, Otto, 1950–, Guatemalan army officer and politician, b. Guatemala City. Pérez rose through the officer ranks to become a general, leading troops and then military intelligence during...

Krag, Jens Otto

(Encyclopedia)Krag, Jens Otto yĕns ôˈtō kräkh [key], 1914–78, Danish political leader. A Social Democrat, he entered parliament in 1947 and played a leading role in shaping Denmark's postwar economic policie...

Warburg, Otto Heinrich

(Encyclopedia)Warburg, Otto Heinrich ŏtˈō hīnˈrĭkh värˈbo͝orkh [key], 1883–1970, German physiologist. He was director (1931–53) of the Kaiser Wilhelm Institute (now Max Planck Institute) for cell physi...

Runge, Philipp Otto

(Encyclopedia)Runge, Philipp Otto fēˈlĭp ôtˈō ro͝ongˈə [key], 1777–1810, German painter. Immersed in the mysticism of the romantic movement in Germany, Runge became a central figure of romantic painting....

Windthorst, Ludwig

(Encyclopedia)Windthorst, Ludwig lo͝otˈvĭkh vĭntˈhôrst [key], 1812–91, German political leader. As a founder and head of the Catholic Center party, he became the Reichstag's foremost opponent of Chancellor ...

Roon, Albrecht Theodor Emil, Graf von

(Encyclopedia)Roon, Albrecht Theodor Emil, Graf von älˈbrĕkht tāˈōdôr āˈmēl gräf fən rōn [key], 1803–79, Prussian field marshal. A military reformer, he insistently pleaded for the reorganization of ...