Over in the thread about Algebra II, many people working in scientific/technical fields have demonstrated how mathematics - even abstract concepts like imaginary/complex numbers - is used in their professions. Now it's my turn to pose a question. In high school physics, I was told that light is both a wave and a particle. When dealing with light, theories and calculations for both waves and particles are used. But how can it be both? After all, a wave is a form of energy moving through a medium (which is itself composed of matter); a particle is a tiny piece of matter (a molecule, an atom, or a subatomic particle). So does that imply that light is both matter and energy? How is this possible? Or is that a discovery that a future Nobel Prize winner will have to make???