Quote by Euclid

"The Greeks elaborated several theories of vision. According to the Pythagoreans, Democritus, and others vision is caused by the projection of particles from the object seen, into the pupil of the eye. On the other hand Empedocles, the Platonists, and Euclid held the strange doctrine of ocular beams, according to which the eye itself sends out something which causes sight as soon as it meets something else emanated by the object."

— Euclid

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Mathematicians from Greece People from Alexandria

Original Language: English

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Sources

Florian Cajori, A History of Physics in its Elementary Branches (1899)

https://en.wikiquote.org/wiki/Euclid

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Euclid

Euclid (Greek: Εὐκλείδης), also known as Euclid of Alexandria, was a Greek mathematician, often referred to as the "founder of geometry" or the "father of geometry". He was active in Alexandria during the reign of Ptolemy I (323–283 BC). His Elements is one of the most influential works in the history of mathematics, serving as the main textbook for teaching mathematics (especially geometry) from the time of its publication until the late 19th or early 20th century. In the Elements, Euclid deduc

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