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Al-Farisi, Kamal al-Din Hasan ibn Ali ibn Hasan, Fig. 1 |

Al-Farisi, Kamal al-Din Hasan ibn Ali ibn Hasan, Fig. 1

From: Al-Farisi, Kamal al-Din Hasan ibn Ali ibn Hasan

Al-Farisi, Kamal al-Din Hasan ibn Ali ibn Hasan, Fig. 1Al-Farisi, Kamal al-Din Hasan ibn Ali ibn Hasan, Fig. 1

Double refraction and single reflection in a raindrop. Simultaneously with Theodoric of Freiberg, al-Farisi was the first to give the correct explanation of the rainbow in his Tanqih al-Manazir (©Library of the Masjid Sepahsalar, Tehran)

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