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Muslim Scholars of Medicine and Mathematics
Ibn Haytham's writings reveal his fine development of the experimental faculty. His tables of corresponding angles of incidence and refraction of light passing from one medium to another show how closely he had approached discovering the law of constancy of ratio of sines, later attributed to Snell. He accounted correctly for twilight as due to atmospheric refraction This article titled, Muslim Scholars of Medicine and Mathematics, gives us a glimpse of that great history.