Category:Optical variables measurement

From ETHW
Revision as of 21:15, 23 January 2013 by Administrator1 (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
The printable version is no longer supported and may have rendering errors. Please update your browser bookmarks and please use the default browser print function instead.

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

The measurement of visual signals

Media in category "Optical variables measurement"

This category contains only the following file.

Retrieved from "https://ethw.org/w/index.php?title=Category:Optical_variables_measurement&oldid=84451"

Powered by MediaWiki
Powered by Semantic MediaWiki