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Topics related to "Hennings prism"

prism prism
prism in optics, a piece of translucent glass or crystal used to form a spectrum of light separated according to colors. Its cross section is usually triangular. The light becomes separated because different wavelengths or frequencies are refracted (bent) by different amounts as they enter the... Read more
Petrography Petrography
PETROGRAPHY PETROGRAPHY deals with the systematic description of rocks. The term is sometimes loosely used as synonymous with "petrology, " which, being the broad science of rocks, is concerned not only with precise description but also with understanding the origin (petrogenesis), modification... Read more
binocular binocular
binocular small optical instrument consisting of two similar telescopes mounted on a single frame so that separate images enter each of the viewer's eyes. As with a single telescope, distant objects appear magnified, but the binocular has the additional advantage that it substantially increases... Read more
Nicol prism Nicol prism
Nicol prism , optical device invented (1828) by William Nicol of Edinburgh. It consists essentially of a crystal of calcite, or Iceland spar , that is cut at an angle into two equal pieces and joined together again with Canada balsam. An ordinary beam of light entering the crystal undergoes double... Read more
pyroxene pyroxene
pyroxene , name given to members of a group of widely distributed rock minerals called metasilicates in which magnesium, iron, and calcium, often with aluminum, sodium, lithium, manganese, or zinc occur as X in the chemical formula XSiO 3 . The pyroxene minerals crystallize in three different... Read more
amphibole amphibole
amphibole , any of a group of widely distributed rock-forming minerals, magnesium-iron silicates, often with traces of calcium, aluminum, sodium, titanium, and other elements. The amphibole minerals are closely related in crystal structure, but they crystallize in two different systems, orthorhombic... Read more
camera lucida camera lucida
camera lucida (Latin: ‘light chamber’). An apparatus used as an aid in drawing and copying, patented in 1807 by William Hyde Wollaston (1766–1828), a well-known man of science. It received its misleading name—for it is not a ‘chamber’ at... Read more
Absorption spectra Absorption spectra
Fraunhofer Lines Fraunhofer lines are dark (absorption) lines in the solar spectrum that can be seen when sunlight is passed through a prism or other device to separate it into its component wavelengths. They occur because cooler gas, which is higher in the sun’s atmosphere, absorbs some... Read more
William Nicol William Nicol
NICOL, WILLIAM (b. 1768; d. Edinburgh, Scotland, 2 September 1851) optics, petrology, paleontology. Although he achieved fame in physics as the inventor of the first polarizer, the Nicol prism, Nicol was primarily a geologist who made important but unappreciated contributions to petrology and... Read more
fluorite fluorite
fluorite or fluorspar , mineral appearing in various colors, e.g., green, yellow-brown, rose, and red. Chemically, it is calcium fluoride, CaF 2 . Its crystals, commonly cubic, are transparent or translucent and under certain conditions exhibit fluorescence. The mineral also occurs in granular... Read more

Related newspaper, magazine, and trade journal articles from HighBeam Research

Art is dead to Dada.(Critical essay)
Magazine article from: Queen's Quarterly ...on self-destruction. It became the prism through which the danse macabre of European...February of 1916 by Ball and his wife, Emmy Hennings, an itinerant actress and nightclub performer...which is laughing and gesticulating. Emmy Hennings (with her face "like a Madonna," commented...
Kaye Donachie: Maureen Paley.
Magazine article from: Artforum International ...works 2005)--her titles are taken from Dada poetry by Emmy Hennings, a Monte Verita habitue and one of the founders of the Cabaret...atmosphere of the mountain, successfully rendered through the prism of more familiar visions of its distant cousins of '60s counterculture...
Kaye Donachie
Magazine article from: Artforum ...works 2005)-her titles are taken from Dada poetry by Emmy Hennings, a Monte Verità habitué and one of the founders of the Cabaret...atmosphere of the mountain, successfully rendered through the prism of more familiar visions of its distant cousins of '60s counterculture...

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