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refraction
(Encyclopedia)refraction, in physics, deflection of a wave on passing obliquely from one transparent medium into a second medium in which its speed is different, as the passage of a light ray from air into glass. O...pressure
(Encyclopedia)pressure, in mechanics, ratio of the force acting on a surface to the area of the surface; it is thus distinct from the total force acting on a surface. A force can be applied to and sustained by a si...photosphere
(Encyclopedia)photosphere, luminous, apparently opaque layer of gases that forms the visible surface of the sun or any other star. The photosphere lies between the dense interior gases and the more attenuated gases...Roux, Wilhelm
(Encyclopedia)Roux, Wilhelm ro͞o [key], 1850–1924, German anatomist, a founder of experimental embryology. He was a pupil of Ernst Haeckel and a professor (1895–1921) at the Univ. of Halle. In his studies of ...Hawking, Stephen William
(Encyclopedia)Hawking, Stephen William, 1942–2018, British theoretical physicist, b. Oxford, England, grad. University College, Oxford, 1962, Ph.D. Trinity Hall, Cambridge, 1966. In 1962 Hawking was diagnosed as ...spring, in geology
(Encyclopedia)spring, in geology, natural flow of water from the ground or from rocks, representing an outlet for the water that has accumulated in permeable rock strata underground. Some of the water that falls as...Manabe, Syukuro
(Encyclopedia)Manabe, Syukuro, 1931– , Japanese climatologist and meteorologist, D.Sc. University of Tokyo, 1958. Manabe has been instrumental in the development of...Löffler, Friedrich
(Encyclopedia)Löffler, Friedrich frēˈdrĭkh löfˈlər [key], 1852–1915, German bacteriologist. From 1888 he taught hygiene at the Univ. of Greifswald. Among his many contributions to bacteriology are his demo...Bopp, Franz
(Encyclopedia)Bopp, Franz fränts bôp [key], 1791–1867, German philologist. A professor at the Univ. of Berlin from 1821 to 1864, he did research in many languages and earned a great reputation as a scholar by d...Rask, Rasmus Christian
(Encyclopedia)Rask, Rasmus Christian räsˈmo͝os krĭsˈtyän räsk [key], 1787–1832, Danish philologist. Rask was a major linguistic pioneer. He published one of the first usable Anglo-Saxon and Icelandic gramm...Browse by Subject
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