When.com Web Search

  1. Ads

    related to: yerkes observatory glass tree ornaments from poland oh free admission list

Search results

  1. Results From The WOW.Com Content Network
  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. Here's how an artist builds the world's largest glass tree in ...

    www.aol.com/heres-artist-builds-worlds-largest...

    The Yerkes Observatory glass tree is (probably) the tallest in the world The first Yerkes Observatory glass tree event took place in 2022. By that point, Mack had done his research on tall trees ...

  4. 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.

  5. List of the largest optical telescopes in North America

    en.wikipedia.org/wiki/List_of_the_largest...

    Name/Observatory Aperture cm (in) Type Location then (Original Site) Extant* Yerkes Observatory [6] 102 cm (40") achromat: Williams Bay, Wisconsin, USA: 1897 James Lick telescope, Lick Observatory: 91 cm (36") achromat: Mount Hamilton, California, USA: 1888 Crossley Reflector [13] 91.4 cm(36") reflector – glass: Lick Observatory, California ...

  6. 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]

  7. Yerkes 41-inch reflector - Wikipedia

    en.wikipedia.org/wiki/Yerkes_41-inch_reflector

    Yerkes 41-inch reflector is a 40-inch aperture (101.6 cm) reflecting telescope at the Yerkes Observatory, that was completed in 1968. It is known as the 41 inch to avoid confusion with a 40 inch refractor at the observatory. Optically it is a Ritchey–Chrétien design, and the main mirror uses low

  8. Warner & Swasey Company - Wikipedia

    en.wikipedia.org/wiki/Warner_&_Swasey_Company

    Among the notable instruments the company built were the telescopes for Lick Observatory (1888, 36-inch, refracting); the United States Naval Observatory (1893); Yerkes Observatory (according to the 50th-anniversary book, [9] this was a 40-inch refracting telescope completed in time for display at the World's Columbian Exposition of 1893 ...

  9. These DIY Christmas Ornaments Will Really Spruce Up Your Tree

    www.aol.com/diy-christmas-ornaments-tree-even...

    These oversized versions make for the perfect visual counterbalance to small ornaments on your tree. Bonus: You can choose any color to match your décor. Get the tutorial at The House That Lars ...