Alhazen

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By Michael Alan Prestwood

Wed 10 Apr 2024

Published 3 years ago.

Updated 6 months ago.

Alhazen

born 965

965 to 1040

42 Generations Ago

30 Phil, Chapter 17: Alhazen and the Senses
Alhazen was born in Basra around 965 CE, a city located in present-day Iraq. In his 30s, Alhazen faced the challenge of his life. He was “commissioned” to produce a solution for regulating the unpredictable and deadly flooding of the Nile. As he delved into the problem, it became clear the task was impossible. The “emission theory,” the prevalent theory before Alhazen, asserted that light originates from your eyes, hits objects, and is then reflected back. In “Book of Optics,” he explored aspects of vision and light, including reflection and refraction. He disproved the emission theory and proved the intromission theory.

Pictured: Artist impression.

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Michael Alan Prestwood
Author & Natural Philosopher

Prestwood writes on science-first philosophy, with particular attention to the convergence of disciplines. Drawing on his TST Framework, his work emphasizes rational inquiry grounded in empirical observation while engaging questions at the edges of established knowledge. With TouchstoneTruth positioned as a living touchstone, this work aims to contribute reliable, evolving analysis in an emerging AI era where the credibility of information is increasingly contested.