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Grimaldi, Francesco Maria
(Encyclopedia)Grimaldi, Francesco Maria fränchāsˈkō märēˈä grēmälˈdē [key], 1618?–1663, Italian physicist and mathematician. A Jesuit and professor at Bologna, he studied in detail and named the dark ...Michelson, Albert Abraham
(Encyclopedia)Michelson, Albert Abraham mīˈkəlsən [key], 1852–1931, American physicist, b. Strelno, Prussia, grad. Annapolis, 1873, and studied at Berlin, Heidelberg, and Paris. He was professor of physics at...McGinley, Phyllis
(Encyclopedia)McGinley, Phyllis, 1905–78, American poet, b. Ontario, Oreg. Her light verse treats aspects of modern life with humor and underlying seriousness. Among her best-known collections of verse are A Pock...lighting
(Encyclopedia) CE5 Incandescent lamp CE5 Basic fluorescent lamp lighting, light produced by artificial means to allow visibility in enclosures and at night. For stage lighting, see scene design and stage ligh...Oliver, Mary
(Encyclopedia)Oliver, Mary, 1935–2019, American poet, b. Cleveland, Ohio, studied Ohio State Univ., Vassar. She published her first collection of poems, No Voyage and Other Poems, in 1963. She was a keen observer...Fizeau, Armand Hippolyte Louis
(Encyclopedia)Fizeau, Armand Hippolyte Louis ärmäNˈ ēpôlētˈ lwē fēzōˈ [key], 1819–96, French physicist. The first to measure (1849) the velocity of light in air, he also determined its speed in water. ...seeing
(Encyclopedia)seeing, in astronomy, the clarity with which stars and other celestial objects can be observed. It is primarily determined by the atmosphere of the earth. The most obvious phenomenon is twinkling, whe...Cornu, Marie Alfred
(Encyclopedia)Cornu, Marie Alfred märēˈ älfrĕdˈ kôrnüˈ [key], 1841–1902, French physicist. From 1867 he was professor at the École polytechnique, Paris. He measured the velocity of light and made import...Local Group
(Encyclopedia)Local Group, in astronomy, loose cluster of at least 40 nearby galaxies, including our own Milky Way galaxy, the Andromeda Galaxy, and the Magellanic Clouds. The Local Group is spread over an ellipsoi...relativity
(Encyclopedia)relativity, physical theory, introduced by Albert Einstein, that discards the concept of absolute motion and instead treats only relative motion between two systems or frames of reference. One consequ...Browse by Subject
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