5.7 - The Islamic Science System
from The Long Way Back to Ourselves
This episode follows scholar Ibn al-Haytham, who in 11th-century Cairo used a darkened room with a pinhole and oil lamps to show light travels from objects into the eye, not the reverse, arguing a truth-seeker must distrust his convictions. It traces how the translation movement centered on Baghdad, carried out largely by Christian, Jewish, and Persian scholars as protected minorities, produced correction of Greek texts, not mere copying. You get the astronomical models at the Maragha observatory, which resemble, sometimes numerically, the models Copernicus later published; historian George Saliba argues for transmission, which is unproven. It shows the popular explanation blaming theologian al-Ghazali for later decline is chronologically impossible, since Maragha was founded 150 years after his death.
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