Talaksan:NewtonsTelescopeReplica.jpg

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English: A replica of Isaac Newton's second reflecting telescope of 1672.
This was a new design of telescope - the Newtonian reflector. Newton's work on optics and splitting white light, led him to believe that all refracting telescopes would suffer from chromatic aberration. His new design of reflecting telescope minimized this problem. However, due to problems with accurately grinding the mirror, Newton's telescope actually caused more image distortions than other contemporary telescope and more than a century passed before reflecting telescope became popular. Newton's first telescope had an objective concave primary mirror diameter of about 1.3 inches (33 mm) with a 6 inch (150mm) long focal length. It had the ability to magnify about 40 times, with a performance similar to a 6 foot (2m) long refracting telescope Newton compared it to (PBS/Nova: Newton's Dark Secrets). Newton presented a second version of his reflector to the Royal Society in 1672 (The History of the Telescope By Henry C. King, Page 74) and was admitted as a fellow of the society in the same year.

This replica of that second Royal Society reflector and is in the Whipple Museum of the History of Science in Cambridge.
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Pinanggalingan www.andrewdunnphoto.com
May-akda User:Solipsist (Andrew Dunn)

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Photograph © Andrew Dunn, 5 November 2004.
Website: http://www.andrewdunnphoto.com/
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Image history of en:Image:NewtonsTelescopeReplica.jpg:

  • (del) (rev) 00:32, 6 November 2004 . . Solipsist . . 1024×891 (119,970 bytes) (A replica of Isaac Newton's telescope of 1672.)

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Replica of Isaac Newton's second reflecting telescope of 1672.

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5 Nobyembre 2004

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ngayon14:52, 19 Abril 2019Thumbnail para sa bersyon noong 14:52, 19 Abril 20191,024 × 891 (376 KB)Fabian RRRRReverted to version as of 07:16, 10 January 2010 (UTC), more realisitc
18:43, 20 Mayo 2018Thumbnail para sa bersyon noong 18:43, 20 Mayo 20181,024 × 891 (516 KB)Till.niermannWhite balance
07:16, 10 Enero 2010Thumbnail para sa bersyon noong 07:16, 10 Enero 20101,024 × 891 (376 KB)DrJungedenoised, sharpened.
09:22, 23 Mayo 2009Thumbnail para sa bersyon noong 09:22, 23 Mayo 20091,024 × 891 (126 KB)Thomas Gunah, fair play
09:20, 23 Mayo 2009Thumbnail para sa bersyon noong 09:20, 23 Mayo 20091,024 × 891 (118 KB)Thomas Gunnot sure what was wrong with the colour before?
16:50, 16 Oktubre 2007Thumbnail para sa bersyon noong 16:50, 16 Oktubre 20071,024 × 891 (126 KB)Fabian CommonsWhite Balance
18:44, 1 Setyembre 2006Thumbnail para sa bersyon noong 18:44, 1 Setyembre 20061,024 × 891 (118 KB)Thuressonlarger
21:54, 14 Enero 2006Thumbnail para sa bersyon noong 21:54, 14 Enero 2006688 × 599 (71 KB)Xocoyote~commonswikiFrom wikipedi in english.

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