In the natural science of ancient Greece, music formed the meeting place between numbers and perception; for the next two millennia, Pesic tells us in Music and the Making of Modern Science, "liberal education" connected music with arithmetic, geometry, and astronomy within a fourfold study, the qua[...]

Children ask, "Why is the sky blue?" but the question also puzzled Plato, Leonardo, and even Newton, who unlocked so many other secrets. The search for an answer continued for centuries; in 1862 Sir John Herschel listed the color and polarization of sky light as "the two great standing enigmas of me[...]