Examples from the Web for alhazen
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.
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.
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