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Mach, Ernst

(Encyclopedia)Mach, Ernst ĕrnst mäkh [key], 1838–1916, Austrian physicist and philosopher, b. Moravia. He taught (1864–67) mathematics at Graz and later, until his retirement in 1901, was professor of physics...

Mach number

(Encyclopedia)Mach number mäk [key] [for E. Mach], ratio between the speed of an object and the speed of sound in the medium in which the object is traveling. An airplane that has the velocity of Mach 3.0 is trave...

Mach's principle

(Encyclopedia)Mach's principle mäks [key] [for E. Mach], assertion that the inertial effects of mass are not innate in a body, but arise from its relation to the totality of all other masses, i.e., to the universe...

sensationalism

(Encyclopedia)sensationalism, in philosophy, the theory that there are no innate ideas and that knowledge is derived solely from the sense data of experience. The idea was discussed by Greek philosophers and is sho...

Barlach, Ernst

(Encyclopedia)Barlach, Ernst ĕrnst bärˈläkh [key], 1870–1938, German expressionist sculptor, graphic artist, and writer. After studying at the Dresden Art Academy he lived in Paris (1895–96) and in Berlin, ...

Cassirer, Ernst

(Encyclopedia)Cassirer, Ernst ĕrnst käsērˈər [key], 1874–1945, German philosopher. He was a professor at the Univ. of Hamburg from 1919 until 1933, when he went to Oxford; he later taught at Yale and Columbi...

Bloch, Ernst

(Encyclopedia)Bloch, Ernst, 1885–1977, German Marxist philosopher. He taught at the Univ. of Leipzig (1918–33), drifting toward Marxist thought during the 1920s. He fled the Nazis after 1933, moving first to Sw...

Abbe, Ernst

(Encyclopedia)Abbe, Ernst ĕrnst äˈbə [key], 1840–1905, German physicist. He was appointed professor at the Univ. of Jena in 1870 and director of its astronomical and meteorological observatories in 1878. From...

Jandl, Ernst

(Encyclopedia) Jandl, Ernst : see MAYRÖCKER, FRIEDERIKE . ...

Jünger, Ernst

(Encyclopedia)Jünger, Ernst ĕrnst yüngˈər [key], 1895–1998, German writer. Jünger's early war novels were based on arduous army experience. Strongly influenced by Nietzsche, they glorified war and its sacri...