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)
एक मिस्र के पालीमाथ (इराक में पैदा हुआ) जिसका शोध ज्यामितीय और ऑप्टिक्स में 17 वीं सदी में प्रभावशाली था