Image:Ibn Sahl fig.jpg
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Reproduction of a page of Ibn Sahl's manuscript showing his discovery of the law of refraction (from Rashed, 1990). The original (ca. 984) is public domain. The reproduction is via fair use.
This image is in the public domain because its copyright has expired in the United States and those countries with a copyright term of life of the author plus 100 years or less.
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- (del) (cur) 10:52, 14 July 2005 . . Robert P. O'Shea (Talk | contribs) . . 1139×1471 (171,700 bytes) (Reproduction of a page of Ibn Sahl's manuscript showing his discovery of the law of refraction (from Rashed, 1990). The original (ca. 984) if public domain. The reproduction is via fair use.)
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