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Drude, Paul Karl Ludwig

(Encyclopedia)Drude, Paul Karl Ludwig poul kärl lo͝otˈvĭkh dro͞oˈdə [key], 1863–1906, German physicist. Drude first experimented with the physical determinants of optical constants, measuring the optical c...

Siegbahn, Karl Manne Georg

(Encyclopedia)Siegbahn, Karl Manne Georg, 1886–1978, Swedish physicist. In 1913, he began a series of experiments that led to the discovery of the M series of X rays and demonstrated the shell arrangement of elec...

Nesselrode, Karl Robert, Count

(Encyclopedia)Nesselrode, Karl Robert, Count kärl rōˈbĕrt nyĕsĕlrôˈdyĭ [key], 1780–1862, Russian statesman of German descent, b. Lisbon. He entered diplomatic service under Czar Alexander I, became state...

Bergius, Friedrich Karl Rudolf

(Encyclopedia)Bergius, Friedrich Karl Rudolf, 1884–1949, German chemist, Ph.D. Univ. of Leipzig, 1907. In 1910, Bergius set up a laboratory to carry out his research and in 1914 transferred the operation to the E...

Bitter, Karl Theodore Francis

(Encyclopedia)Bitter, Karl Theodore Francis, 1867–1915, American sculptor, b. Austria. Having done some decorative modeling in Austria, Bitter soon found work when he came to the United States in 1889. His work f...

Weierstrass, Karl Wilhelm Theodor

(Encyclopedia)Weierstrass, Karl Wilhelm Theodor kärl vĭlˈhĕlm tāˈōdōr vīˈərshträs [key], 1815–97, German mathematician. From 1864 he was professor of mathematics at the Univ. of Berlin. His developmen...

Franz Josef Land

(Encyclopedia)Franz Josef Land frăns jōˈzəf, fränts yōˈzĕf [key], Rus. Zemlya Frantsa Iosifa, archipelago, c.6,300 sq mi (16,320 sq km), in the Arctic Ocean N of Novaya Zemlya, Russia. It consists of more t...

Child, Lydia Maria

(Encyclopedia)Child, Lydia Maria, 1802–80, American author and abolitionist, b. Lydia Maria Francis, Medford, Mass. She edited (1826–34) the Juvenile Miscellany, a children's periodical. She and her husband (Da...

Lenbach, Franz von

(Encyclopedia)Lenbach, Franz von fränts fən lānˈbäkh [key], 1836–1904, German portrait painter. He studied in Munich and Rome and from 1863 to 1868 worked as a copyist of old masters in Italy and Spain. His ...

Laban, Rudolf von

(Encyclopedia)Laban, Rudolf von fôn läbˈän [key], 1879–1958, Slovakian dancer, choreographer, and dance theorist. After studying in Paris and performing in N Africa, Germany, and Austria, he founded (1910) a ...