Alhazen

[ ăl-hăz′ən ]

See Ibn al-Haytham.

QUIZZES

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Question 1 of 7

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Like the measurements of Aristarchus and Eratosthenes, this calculation of Alhazen is simple enough in theory.
A History of Science, Volume 2(of 5)|Henry Smith Williams
A later edition was published, together with a translation of Alhazen, by F. Risner in 1572.
Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 1|Various
The course of investigation, as regards light, was resumed in 1100 by an Arabian philosopher named Alhazen.
Six Lectures on Light|John Tyndall
Pre-eminent among Arabian scientists is Alhazen, who flourished in the 11th century.
Encyclopaedia Britannica, 11th Edition, Volume 16, Slice 5|Various

Alhazen discovered atmospheric refraction, and showed that we see the sun and the moon after they have set.
Fragments of science, V. 1-2|John Tyndall