Image: LaNature1873 coupe telescope foucault
LaNature1873_coupe_telescope_foucault.png (499 × 129 pixels, file size: 4 KB, MIME type: image/png)
Description: Coupe du télescope Foucault pour La Nature, revue des sciences, n° 24, page 371.
Title: LaNature1873 coupe telescope foucault
Credit: http://cnum.cnam.fr/CGI/page.cgi?4KY28.1/379/100/p.371
Author: Unknown authorUnknown author
Permission: This image is in the public domain because its copyright has expired.
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