Columbia Encyclopedia

Search results

247 results found

Jensen, Johannes Hans Daniel

(Encyclopedia)Jensen, Johannes Hans Daniel, 1907–73, German physicist, Ph.D. Univ. of Hamburg, 1932. Jensen was a professor at the Technical Univ. of Hanover from 1941 to 1949, when he joined the faculty at Heide...

Brandes, Georg Morris Cohen

(Encyclopedia)Brandes, Georg Morris Cohen bränˈ dəs [key], 1842–1927, Danish literary critic. His influence brought the wide currents of contemporary European thought to Danish and other Scandinavian literatur...

van der Waals, Johannes Diderik

(Encyclopedia)van der Waals, Johannes Diderik yōhäˈnəs dēˈdərĭk vän dər väls [key], 1837–1923, Dutch physicist. It had been known for some time that the behavior of real gases differs from that of an i...

Bothe, Walther Wilhelm Georg

(Encyclopedia)Bothe, Walther Wilhelm Georg, 1891–1957, German physicist, Ph.D. Univ. of Berlin, 1923. Bothe was a researcher at the Reich Physical and Technical Institute (1913–30) and a professor at Heidelberg...

Moltke, Helmuth Johannes Ludwig, Graf von

(Encyclopedia)Moltke, Helmuth Johannes Ludwig, Graf von hĕlˈmo͞ot yōhäˈnəs lo͞otˈvĭkh gräf fən môltˈkə [key], 1848–1916, German army officer. He fought in the Franco-Prussian War (1870–71) and be...

Tilly, Johannes Tserklaes, count of

(Encyclopedia)Tilly, Johannes Tserklaes, count of yōhänˈəs tsĕrkläsˈ tĭlˈē [key], 1559–1632, general in Bavarian and later imperial service during the Thirty Years War. A younger son of a noble family o...

Hegel, Georg Wilhelm Friedrich

(Encyclopedia)Hegel, Georg Wilhelm Friedrich gāˈôrkh vĭlˈhĕlm frēˈdrĭkh hāˈgəl [key], 1770–1831, German philosopher, b. Stuttgart; son of a government clerk. Hegel has influenced many subsequent p...

superconductivity

(Encyclopedia)superconductivity, abnormally high electrical conductivity of certain substances. The phenomenon was discovered in 1911 by Heike Kamerlingh Onnes, who found that the resistance of mercury dropped sudd...

Regiomontanus

(Encyclopedia)Regiomontanus rēˌjēōmŏnˌtāˈnəs [key] [Lat.,=belonging to the royal mountain, i.e., to Königsberg], 1436–76, German astronomer and mathematician, b. Königsberg. His original name was Johan...

Agricola, Johann

(Encyclopedia)Agricola, Johann or Johannes əgrĭkˈələ [key], c.1494–1566, German Protestant minister, whose family name was Schnitter (originally Schneider). He was born at Eisleben and is sometimes called M...