File:Reflecting Telescope (PSF).png

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English: a telescope in which the principal focusing element is a mirror
Date
Source Archives of Pearson Scott Foresman, donated to the Wikimedia Foundation
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: PSF R-760005.png
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Author Pearson Scott Foresman
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Public domain This work has been released into the public domain by its author, Pearson Scott Foresman. This applies worldwide.
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Pearson Scott Foresman grants anyone the right to use this work for any purpose, without any conditions, unless such conditions are required by law.

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current05:55, 10 April 2020Thumbnail for version as of 05:55, 10 April 20201,770 × 2,317 (350 KB)Encik Tekateki (talk | contribs)Uploaded a work by Pearson from https://commons.wikimedia.org/wiki/File:PSF_R-760005.png with UploadWizard

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