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In June 1967, Yerkes Observatory hosted the to-date largest meeting of the American Astronomical Society, with talks on over 200 papers. [14] The Yerkes spectral classification (aka MKK system) was a system of stellar spectral classification introduced in 1943 by William Wilson Morgan, Philip C. Keenan, and Edith Kellman from Yerkes Observatory ...
The original can be viewed here: Portrait of Albert Einstein and Others (1879-1955), Physicist - Original.jpg: . Modifications made by Bammesk . This is a featured picture on Wikimedia Commons ( Featured pictures ) and is considered one of the finest images.
Mary Ross Calvert (June 20, 1884 – June 25, 1974) was an American astronomical computer and astrophotographer.She started as her uncle Edward Emerson Barnard's assistant and ended publishing his (and their) work that cataloged over 300 dark objects (dark nebulae) — primarily those that extinguish the most starlight reaching the Earth lie between the bulk (inward local sector, central bulge ...
George Ellery Hale (June 29, 1868 – February 21, 1938) was an American astrophysicist, best known for his discovery of magnetic fields in sunspots, and as the leader or key figure in the planning or construction of several world-leading telescopes; namely, the 40-inch refracting telescope at Yerkes Observatory, 60-inch Hale reflecting telescope at Mount Wilson Observatory, 100-inch Hooker ...
The 40-inch (1.02 m) refractor telescope backdrops Albert Einstein's visit to the Yerkes Observatory in May 1921. The 40-inch refractor telescope was modernized in the late 1960s with electronics of the period.
The Einstein-de Haas experiment is the only experiment concived, realized and published by Albert Einstein himself. A complete original version of the Einstein-de Haas experimental equipment was donated by Geertruida de Haas-Lorentz , wife of de Haas and daughter of Lorentz, to the Ampère Museum in Lyon France in 1961 where it is currently on ...
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