How light ‘smells’ all its possible paths from source to destination

"Now in the further development of science, we want more than just a formula. First we have an observation, then we have numbers that we measure, then we have a law which summarizes all the numbers. But the real glory of science is that we can find a way of thinking such that the law is evident." -Richard Feynman Quantum … Continue reading How light ‘smells’ all its possible paths from source to destination