I have a question, somewhat of a curious nature. Say you have an electrical generator that keeps running and running, producing an electrical current continuously. Where do the Electrons come from? I have just asked (in another thread) about Electrons having mass (which evidently they do). Given that, where do the electrons keep coming from that are produced by the Generator? Do they come from the windings of the generator, and if so, wouldn't the generator soon run out of electrons? If not, then where are they coming from? Any information would be appreciated, I am quite curious about this.