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 the 40 inch refractor telescope at the Yerkes Observatory]] | [[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]] | ||
The measurement of visual signals | |||
[[Category:Measurement|{{PAGENAME}}]] | [[Category:Measurement|{{PAGENAME}}]] | ||
Latest revision as of 21:15, 23 January 2013
The measurement of visual signals
Media in category "Optical variables measurement"
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