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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...

Afzelius, Arvid August

(Encyclopedia)Afzelius, Arvid August ärˈvēd ouˈgəst [key], 1785–1871, Swedish historian, mythologist, and songwriter. He made a notable collection of folk material in Swedish Folk Tunes from Olden Times (3 v...

Eichler, August Wilhelm

(Encyclopedia)Eichler, August Wilhelm ouˈgo͝ost vĭlˈhĕlm īkhˈlər [key], 1839–87, German botanist. He worked out the symmetry of the parts of a flower and developed a system of plant classification which, ...

Petermann, August Heinrich

(Encyclopedia)Petermann, August Heinrich ouˈgo͝ost hīnˈrĭkh pāˈtərmän [key], 1822–78, German geographer, an authority on the geography of Africa and the Arctic. He had (1847–54) a cartographical establ...

Kopp, Hermann Franz Moritz

(Encyclopedia)Kopp, Hermann Franz Moritz hĕrˈmän fräntz mōˈrĭts kôp [key], 1817–92, German physical chemist and historian of chemistry. His research concerned the connection between the physical propertie...

Crusius, Christian August

(Encyclopedia)Crusius, Christian August krĭsˈtēän ouˈgo͝ost kro͞oˈzēo͝os [key], 1715–75, German philosopher and theologian. He was educated at the Univ. of Leipzig, where he became professor of philosop...

Bürger, Gottfried August

(Encyclopedia)Bürger, Gottfried August gôtˈfrēt ouˈgo͝ost bürˈgər [key], 1747–94, German poet. He is best known for his ballads in folk-song style; the famous Lenore (1773) was widely translated and had ...

Lotze, Rudolf Hermann

(Encyclopedia)Lotze, Rudolf Hermann ro͞oˈdôlf hĕrˈmän lōˈtsə [key], 1817–81, German philosopher and psychologist. After studying medicine and philosophy at Leipzig, he was lecturer in both departments an...

Arrhenius, Svante August

(Encyclopedia)Arrhenius, Svante August sfänˈtə, ärāˈnēəs [key], 1859–1927, Swedish chemist. He was a professor of physics in Stockholm in 1895 and became director of the Nobel Institute for Physical Chemi...

Mackensen, August von

(Encyclopedia)Mackensen, August von ouˈgo͝ost fən mäˈkənzən [key], 1849–1945, German field marshal. In World War I he defeated the Russians in the battle of the Masurian Lakes (1914–15), conducted succes...