File:Jaansen Microscope.jpg
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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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| Source | National Museum of Health and Medicine network. |
| Author | Alan Hawk, National Museum of Health and Medicine, Armed Forces Institute of Pathology, Department of Defense, U.S. Government |
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This work is in the public domain in the United States because it is a work prepared by an officer or employee of the United States Government as part of that person’s official duties under the terms of Title 17, Chapter 1, Section 105 of the US Code.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 21:36, 21 February 2013 | | 2,592 × 1,944 (896 KB) | Alan.hawk (talk | contribs) | Uploading a public-domain item using File Upload Wizard |
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