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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...

Baer, Karl Ernst von

(Encyclopedia)Baer, Karl Ernst von, 1792–1876, Estonian biologist. He was a professor at Würzburg and Königsberg and from 1834 at St. Petersburg. Considered a founder of modern embryology, he discovered the not...

Popper, Sir Karl Raimund

(Encyclopedia)Popper, Sir Karl Raimund, 1902–94, Anglo-Austrian philosopher, b. Vienna. He became familiar with the Vienna circle of logical positivists (see logical positivism) while a student at the Univ. of Vi...

Bernstorff, Johann Heinrich, Graf von

(Encyclopedia)Bernstorff, Johann Heinrich, Graf von bĕrnsˈtôrf [key], 1862–1939, German diplomat. As ambassador to the United States (1908–17), he tried to conciliate American feelings toward Germany and re...

Schwarzenberg, Karl Philipp, Fürst zu

(Encyclopedia)Schwarzenberg, Karl Philipp, Fürst zu fürst tso͞o shvärˈtsənbĕrk [key], 1771–1820, Austrian field marshal and diplomat. In 1810 he was made ambassador to France, and he led the Austrian forc...

Leuckart, Karl Georg Friedrich Rudolf

(Encyclopedia)Leuckart, Karl Georg Friedrich Rudolf kärl gāˈôrk frēˈdrĭkh ro͞oˈdôlf loiˈkärt [key], 1823–98, German zoologist, a founder of the science of parasitology. He made important discoveries i...

Kalckreuth, Leopold Karl Walter, Graf von

(Encyclopedia)Kalckreuth, Leopold Karl Walter, Graf von lāˈōpôlt kärl välˈtər gräf fən kälkˈroit [key], 1855–1928, German painter and graphic artist. He taught at the Weimar and Karlsruhe academies an...

Fouqué, Friedrich Heinrich Karl, Baron de La Motte-

(Encyclopedia)Fouqué, Friedrich Heinrich Karl, Baron de La Motte- frēˈdrĭkh hīnˈrĭkh kärl bärōnˈ də lä môt-fo͞okāˈ [key], 1777–1843, German poet and novelist. He wrote many chivalric romances, ta...

Varnhagen von Ense, Karl August

(Encyclopedia)Varnhagen von Ense, Karl August kärl ouˈgo͝ost färnˈhägən fən ĕnˈzə [key], 1785–1858, German poet, historian, and journalist. He collaborated with Chamisso and other writers and wrote Bio...

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