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Boltzmann, Ludwig

(Encyclopedia)Boltzmann, Ludwig lo͝otˈvĭkh bôltsˈmän [key], 1844–1906, Austrian physicist, b. Vienna, educated at Univ. of Vienna. He began teaching (1869) at Graz Univ. In 1873 he became mathematics profes...

Stefan, Josef

(Encyclopedia)Stefan, Josef yōˈzĕf shtĕfˈän [key], 1835–93, Austrian physicist. At the Univ. of Vienna he became a professor of physics and later director of the Physical Institute. From his observations on...

Ludwig

(Encyclopedia)Ludwig. For German rulers thus named, use Louis.

statistical mechanics

(Encyclopedia)statistical mechanics, quantitative study of systems consisting of a large number of interacting elements, such as the atoms or molecules of a solid, liquid, or gas, or the individual quanta of light ...

Devrient, Ludwig

(Encyclopedia)Devrient, Ludwig lo͝otˈvĭkh dəvrēăNˈ [key], 1784–1832, German actor. He abandoned a commercial career in 1804 to join a traveling theatrical company. In Berlin he was a favorite in comedy and...

Anzengruber, Ludwig

(Encyclopedia)Anzengruber, Ludwig lo͝otˈvĭkh änˈtsəngro͞oˌbər [key], 1839–89, Austrian writer. An actor and a clerk in the imperial police, Anzengruber had little success as a writer until the production...

Gumplowicz, Ludwig

(Encyclopedia)Gumplowicz, Ludwig lo͞otˈvĭkh go͝omˈplōvĭch [key], 1838–1909, Austrian sociologist, political scientist, and jurist. From 1897 to 1909 he was a professor at Graz. He held that social developm...

Erhard, Ludwig

(Encyclopedia)Erhard, Ludwig lo͝otˈvĭkh ĕrˈhärt [key], 1897–1977, German political leader and economist. In Nuremberg he rose to be director of the institute for economic research. Dismissed (1942) by the N...

Mond, Ludwig

(Encyclopedia)Mond, Ludwig, 1839–1909, chemist; father of Alfred Moritz Mond, 1st Baron Melchett. He was born in Germany and became a naturalized British subject. Mond experimented with alkalies and also develope...

Lewisohn, Ludwig

(Encyclopedia)Lewisohn, Ludwig lo͞oˈĭzōn [key], 1882–1955, American author, b. Berlin. After teaching German at Ohio State (1911–19), he was associate editor for the Nation (1920–24). His novels include D...