Science
965 to 1040, Basra and Cairo
Optics and the founding of the scientific method.
Start learning Ibn →Ibn al-Haytham overturned a thousand years of Greek theory by proving that we see because light enters the eye - not because the eye reaches out.
Ibn al-Haytham insisted that nature be questioned by controlled experiment and mathematics, not settled by the authority of the ancients - and some call him the first true scientist.
With a darkened room and a tiny hole, Ibn al-Haytham proved how light moves - and turned optics into exact geometry.
Ibn al-Haytham turned his skepticism on the greatest authority in astronomy, exposing that Ptolemy’s celestial machine could not physically exist.
Ibn al-Haytham argued that perception is not passive reception but active inference - the mind builds what we see, a thousand years before cognitive science.
More in Science
Isaac NewtonGalileo GalileiCharles DarwinMarie CurieJohannes KeplerNicolaus CopernicusJames Clerk MaxwellGregor Mendelepoché — a humanities education that remembers you.