Okay? one of the famous discoveries in electricity magnets and that we'll talk about later is that changing a current creates an electric field, this was discovered by accident because a guy happened to actually pay close attention to his measuring device that was, was measuring the voltage when he turned the current on and off, and he saw that he was actually getting an a measurement briefly as it was going on and off, which some people might have mistaken, oh, it's just kind of a noise or something. 