Category:Optical variables measurement: Difference between revisions
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[[Image:Optical Variables Measurements Yerkes 40 inch Refractor Telescope 1897.jpg|thumb|right| A 1897 photo of | [[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]] | ||
[[Category:Measurement|{{PAGENAME}}]] | [[Category:Measurement|{{PAGENAME}}]] |
Revision as of 16:30, 14 March 2012
Media in category "Optical variables measurement"
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