Ibn al-Haytham

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Ibn al-Haytham

(ĭb`ən äl-hīth-äm`) or

Alhazen

(ălhəzĕn`), 965–c.1040, Arab mathematician. Ibn al-Haytham was born in Basra, but made his career in Cairo, where he supported himself copying scientific manuscripts. Among his original works, only those on optics, astronomy, and mathematics survive. His Optics, which relied on experiment rather than on past authority, introduced the idea that light rays emanate in straight lines in all directions from every point on a luminous surface. Latin editions of the Optics, available from the 13th cent. on, influenced Kepler and Descartes. As a cosmologist, al-Haytham tried to find mechanisms by which the heavenly bodies might be shown to follow the paths determined by Ptolemaic mathematics. In mathematics, al-Haytham elucidated and extended Euclid's Elements and suggested a proof of the parallel postulate.
References in periodicals archive ?
The worst strike in Baghdad - a suicide car bombing - targeted an Iraqi army patrol outside an army base in the northern Baghdad neighbourhood of Azamiyah near the Ibn al-Haitham College, killing 10 and wounding 15, most of them Iraqi soldiers, police Lt.
The film, which is the actor's final performance, is a science fiction film featuring the inventions of Muslim scientist Al-Hassan Ibn Al-Haitham.
The film shows Ibn Al-Haitham's journey to understand human vision, and the principles of light and optical theories.