Alvan Clark & Sons

Alvan Clark & Sons

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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Alvan Clark & Sons was an American maker of optics that became famous for crafting lenses for some of the largest refracting telescopes of the 19th and early 20th centuries. Founded in 1846 in Cambridgeport, Massachusetts by Alvan Clark, and his sons George Bassett Clark and Alvan Graham Clark. Five times, the firm built the largest refracting telescopes, Great refractors, in the world. The Clark firm gained "worldwide fame and distribution," wrote one author on astronomy in 1899. The 18.5-inch Dearborn telescope was commissioned in 1856 by the University of Mississippi. The outbreak of civil war prevented them from ever taking ownership. As a result it was being tested in Cambridgeport when Alvan Graham observed Sirius B in 1862show more

Product details

  • Paperback | 116 pages
  • 152 x 229 x 7mm | 181g
  • Loc Publishing
  • United States
  • English
  • 6134968900
  • 9786134968904