File:First compound microscope.jpg

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First_compound_microscope.jpg ‎(448 × 336 pixels, file size: 13 KB, MIME type: image/jpeg)

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Description
English: Reproduction of an optical device that Zacharias Snijder in 1841 claimed was an early telescope built by Zacharias Janssen. In 1858 Utrecht professor Pieter Harting claimed it to be a microscope, still attributed to Zacharias Janssen. Its actual function and creator has been disputed. Reproduction was made by John Mayall, London UK, in the 1890s and is presently in the collection of the National Museum of Health and Medicine in Silver Spring, MD. [1]
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Public domain This image is a work of the United States Department of Health and Human Services, taken or made as part of that person's official duties. As a work of the U.S. federal government, the image is in the public domain.

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The original description page was here. All following user names refer to en.wikipedia.
  • 2007-10-19 12:55 Alan.hawk 448×336× (13542 bytes) Reproduction of first compound microscope made by Hans and Zachias Janssen, circa 1590. (Reproduction by John Mayall in 1891) [Billings Microscope Collection, National Museum of Health and Medicine, AFIP, Washington, DC USA. M-030 27002.]
  1. ↑ Albert Van Helden, Sven Dupré, Rob Van Gent, Huib Zuidervaart, The Origins of the Telescope, pages 32-36

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Date/TimeThumbnailDimensionsUserComment
current16:15, 19 March 2009Thumbnail for version as of 16:15, 19 March 2009448 × 336 (13 KB)File Upload Bot (Magnus Manske) (talk | contribs) {{BotMoveToCommons|en.wikipedia|year={{subst:CURRENTYEAR}}|month={{subst:CURRENTMONTHNAME}}|day={{subst:CURRENTDAY}}}} {{Information |Description={{en|Reproduction of first compound microscope made by Hans and Zacharias Janssen, circa 1590. (Reproductio

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