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500 years before the Scientific Revolution, the mathematician Al-Hassan Ibn al-Haytham spent hours in a dark room studying the light that filtered in. Not only did he revolutionize how we literally see the world, he pioneered the scientific method that is now the backbone of modern science.
0:41 What is a camera obscura?
1:48 The mathematician who tried to dam the Nile
3:08 The origin of optics
3:56 Ancient ways of knowing
6:39 The birth of modern science
7:38 From hypothesis to experiment
8:44 How al-Haytham changed science history