Difference between revisions of "Category:Optical variables measurement"

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[[Image:Optical Variables Measurements Yerkes 40 inch Refractor Telescope 1897.jpg|thumb|right| A 1897 photo of The 40 inch refractor telescope at the Yerkes Observatory]]
  
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Revision as of 16:30, 14 March 2012

IEEE GHN Category

A 1897 photo of The 40 inch refractor telescope at the Yerkes Observatory

Media in category "Optical variables measurement"

This category contains only the following file.