Quote ="Kosh"Simples. It's a quantum of electromagnetic radiation, innit.'"
That doesn't tell you much though. Maybe it's a moving two-dimensional field, alternately a free standing electrical field and then a free standing magnetic field, each mutually generated by each other?
Quote ="Kosh"What's to say that the expansion of the early Universe didn't create goblins and werewolves? ..'"
Can I phone a friend?