Ibn al-Haytham

Born in Basra, Iraq, during the Islamic Golden Age, Ibn al-Haytham was a true Renaissance man before the Renaissance even knew what hit it. He dabbled in everything from physics and mathematics to astronomy and medicine, proving that specialization is for the weak, or at least for those without a truly colossal brain. His work on optics, however, was where he truly shone, literally. He correctly deduced that light enters the eye, rather than rays shooting out of the eye to "see" things, which, let's be honest, sounds like something a toddler would think. Ancient Greeks, we're looking at you. He's essentially the guy who invented the scientific method before it was cool, emphasizing experimentation and empirical evidence over pure philosophical conjecture. If only more people had listened, we might have had functional eyeglasses a few centuries sooner. Despite his brilliance, Ibn al-Haytham spent a good chunk of his career in self-imposed house arrest, faking madness to avoid the wrath of an Egyptian caliph he'd promised to regulate the Nile for. He then used his "madness" to write some of his most influential works. Talk about making lemonade out of lemons, or in his case, making groundbreaking science out of a very awkward professional fib.