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Summary
| Description |
Français : Huygens, Traité de la lumière, 1690. — Fig. 49 et 50 : Plans de clivage dans un cristal de spath d'Islande.
English: Huygens, Traité de la lumière (Treatise on Light), 1690. — Fig. 49 and 50 : Cleavage planes in a crystal of Iceland spar.
Español: Huygens, Traité de la lumière (Tratado de la luz), 1690. — Fig. 49 y 50 : Planos de exfoliación en un cristal de espato de Islandia. |
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| Source | Huygens, Traité de la lumière, 1690. | ||||||||||||||||||||||||||
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Licensing
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The author died in 1695, so this work is in the public domain in its country of origin and other countries and areas where the copyright term is the author's life plus 100 years or fewer.  You must also include a United States public domain tag to indicate why this work is in the public domain in the United States. |
| This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights. | |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 13:24, 28 July 2020 | | 750 × 600 (539 KB) | ElioPrrl | Uploaded a work by {{creator:Christiaan Huygens}} (SVG drawing by ElioPrrl) from Huygens, ''Traité de la lumière'', 1690. with UploadWizard |
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