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  2. Yerkes Observatory - Wikipedia

    en.wikipedia.org/wiki/Yerkes_Observatory

    Yerkes Observatory (/ ˈ j ɜːr k iː z / ⓘ YUR-keez) is an astronomical observatory located in Williams Bay, Wisconsin, United States. The observatory was operated by the University of Chicago Department of Astronomy and Astrophysics [ 2 ] [ 3 ] from its founding in 1897 until 2018.

  3. Portal:Astronomy/Picture/58 - Wikipedia

    en.wikipedia.org/wiki/Portal:Astronomy/Picture/58

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

  4. Francis G. Pease - Wikipedia

    en.wikipedia.org/wiki/Francis_G._Pease

    In 1908 he became an astronomer and instrument maker at the Mount Wilson Observatory. Among his designs was the 100-inch (2,500 mm) telescope at that observatory, and a 50-foot (15 m) interferometer that he used to measure star diameters. Gene Shoemaker used Pease's high quality photographs of the Moon to make its first geologic map. [1]

  5. George Ellery Hale - Wikipedia

    en.wikipedia.org/wiki/George_Ellery_Hale

    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 ...

  6. Tests of general relativity - Wikipedia

    en.wikipedia.org/wiki/Tests_of_general_relativity

    Tests of general relativity serve to establish observational evidence for the theory of general relativity.The first three tests, proposed by Albert Einstein in 1915, concerned the "anomalous" precession of the perihelion of Mercury, the bending of light in gravitational fields, and the gravitational redshift.

  7. List of largest optical refracting telescopes - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_optical...

    The Swedish 1-m Solar Telescope, with a lens diameter of 43 inches, is technically the largest, with 39 inches clear for the aperture.The second largest refracting telescope in the world is the Yerkes Observatory 40 inch (102 cm) refractor, used for astronomical and scientific observation for over a century.

  8. Tsunami map shows how San Francisco could be devastated - AOL

    www.aol.com/tsunami-map-shows-san-francisco...

    A 2021 map shows the impact of a tsunami hitting the San Fransisco area - and the devastation it could cause. The map was thrust back into the spotlight Thursday when a 7.0-magnitude earthquake ...

  9. 1947 flying disc craze - Wikipedia

    en.wikipedia.org/wiki/1947_flying_disc_craze

    On June 30, Albert Einstein and fellow scientists warned of a possible atomic war within a decade. [22] A three-week conference about radioactive chemicals in medicine began at the University of California in San Francisco. On July 1, Representative John Dingell criticized hosting of German atomic scientists in places like El Paso. [23] [17]