objective gratings

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• optics — /op tiks/, n. (used with a sing. v.) the branch of physical science that deals with the properties and phenomena of both visible and invisible light and with vision. [1605 15; < ML optica < Gk optiká, n. use of neut. pl. of OPTIKÓS; see OPTIC,… …   Universalium

• spectroscopy — spectroscopist /spek tros keuh pist/, n. /spek tros keuh pee, spek treuh skoh pee/, n. the science that deals with the use of the spectroscope and with spectrum analysis. [1865 70; SPECTRO + SCOPY] * * * Branch of analysis devoted to identifying… …   Universalium

• Optics — For the book by Sir Isaac Newton, see Opticks. Optical redirects here. For the musical artist, see Optical (artist). Optics includes study of dispersion of light. Optics is the branch of …   Wikipedia

• Phase contrast microscopy — Phase contrast image of a cheek epithelial cell Phase contrast microscopy is an optical microscopy illumination technique of great importance to biologists in which small (invisible to the human eye) phase shifts in the light passing through a… …   Wikipedia

• Fraunhofer, Joseph von — • Optician (1787 1826) Catholic Encyclopedia. Kevin Knight. 2006. Fraunhofer, Joseph von     Joseph von Fraunhofer …   Catholic encyclopedia

• Joseph von Fraunhofer —     Joseph von Fraunhofer     † Catholic Encyclopedia ► Joseph von Fraunhofer     Optician, b. at Straubing, Bavaria, 6 March, 1787; d. at Munich, 7 June, 1826. He was the tenth and last son of a poor glass grinder who was unable to give his boy… …   Catholic encyclopedia

• Nights: Journey of Dreams — Developer(s) Sega Studio USA Sonic Team Publisher(s) Sega …   Wikipedia

• Evoked potential — Intervention MeSH D005071 An evoked potential (or evoked response ) is an electrical potential recorded from the nervous system of a human or other animal following presentation of a …   Wikipedia

• philosophy, Western — Introduction       history of Western philosophy from its development among the ancient Greeks to the present.       This article has three basic purposes: (1) to provide an overview of the history of philosophy in the West, (2) to relate… …   Universalium

• Condon Committee — Mass market paperback edition of the Condon Report, published by New York Times/Bantam Books (January, 1969), 965 pages. The Condon Committee was the informal name of the University of Colorado UFO Project, a group funded by the United States Air …   Wikipedia

• Dutch inventions and discoveries — The Dutch people have a history and tradition in inventing and discovery. Dutch scientists and engineers have made a remarkable contribution to human progress as a whole, from something as simple as the sawmill to microbiology and artificial… …   Wikipedia