Alhazen
Noun
Meaning
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)
Source: WordNetSynonyms
Examples
From the writings of Alhazen and these observations and experiments of Bacon together, it is not improbable that some monks gradually hit upon the construction of spectacles.
Alhazen's writings were more widely available in the Middle Ages than those of these earlier authors, and that probably explains why Alhazen received the credit.
Alhazen corrected a significant error of Ptolemy regarding binocular vision, but otherwise his account is very similar; Ptolemy also attempted to explain what is now called Hering's law.
Alhazen believed there was a "true configuration" of the planets that Ptolemy had failed to grasp.
Alhazen (965–1040): made significant improvements in optics, physical science, and the scientific method.
Alhazen argued against Ptolemy's refraction theory, and defined the problem in terms of perceived, rather than real, enlargement.