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Ostwald, Wilhelm

(Encyclopedia)Ostwald, Wilhelm vĭlˈhĕlm ôstˈvält [key], 1853–1932, German physical chemist and natural philosopher, b. Riga, Latvia. He was professor of chemistry and director of the chemical laboratory (18...

Hopkins, Mark, American educator

(Encyclopedia)Hopkins, Mark, 1802–87, American educator, b. Stockbridge, Mass., grad. Williams, 1824, and Berkshire Medical School, 1829. After a few months of medical practice he returned (1830) to Williams as p...

Ives, Frederic Eugene

(Encyclopedia)Ives, Frederic Eugene, 1856–1937, American inventor, b. Litchfield, Conn. A pioneer in the development of orthochromatic and trichromatic photography and of photoengraving, he followed an earlier su...

Jevons, William Stanley

(Encyclopedia)Jevons, William Stanley jĕvˈənz [key], 1835–82, English economist and logician. After working in Australia as assayer to the mint, he taught at Owens College, Manchester, and University College, ...

Echegaray, José

(Encyclopedia)Echegaray, José hōsāˈ āchāgärīˈ [key], 1832–1916, Spanish dramatist, mathematician, physicist, economist, and politician. He taught science, practiced engineering, and devoted his later lif...

Hägerstrom, Axel

(Encyclopedia)Hägerstrom, Axel äkˈsəl hägˈərstrôm [key], 1868–1939, Swedish philosopher. He was a student (1886–93) at Uppsala Univ. and taught there from 1893 until his retirement in 1933. The son of a...

Haskins, Charles Homer

(Encyclopedia)Haskins, Charles Homer, 1870–1937, American historian, an authority on medieval history, b. Meadville, Pa. At Harvard (1902–31) he was professor and dean of graduate studies (1908–24); in the la...

Sillanpää, Frans Eemil

(Encyclopedia)Sillanpää, Frans Eemil fräns āˈmĭl sĭlˈlänpăˌ [key], 1888–1964, Finnish novelist. As a young man Sillanpää studied natural science at Helsinki and came under the influence of an artisti...

Smith, Goldwin

(Encyclopedia)Smith, Goldwin, 1823–1910, English educator, historian, and journalist. Educated at Oxford, he took a prominent part in executing reforms at the university and became (1858) professor of modern hist...

special effects

(Encyclopedia)special effects, in motion pictures, cinematographic techniques that create illusions in the audience's minds as well as the illusions created using these techniques. Some common examples are the use ...