File:PSM V54 D323 Two simple shapes creating optical illusions.png
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 04:06, 17 April 2013 | ![]() | 1,255 × 613 (30 KB) | commons>Ineuw | =={{int:filedesc}}== {{Information |description={{en|1=Two simple shapes creating optical illusions}} |date=1899 |source=[http://www.archive.org/details/popularsciencemo54newy Popular Science Monthly Volume 54] |author=Unknown |permission= |other_versi... |
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