This is not a dictionary! - Search for "al-hasan ibn al-haytham" in The Danish Dictionary
February 26. 2016 from wordnet.princeton.edu
Al-Hasan ibn al-Haytham — noun — english
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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