Definitions for al-hasan ibn al-haytham
Alhazen, Alhacen, al-Haytham, Ibn al-Haytham, Al-Hasan ibn al-Haytham(noun)
an Egyptian polymath (born in Iraq) whose research in geometry and optics was influential into the 17th century; established experiments as the norm of proof in physics (died in 1040)
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