[Rock Hornbuckle]

As it is with all new discoveries, theory takes much convincing for it to become generally accepted. In the beginning we thought that all things physical must be positive, therefor Franklin labeled Lighting as Pos. and the ground (earth) as Neg. It wasn't until atomic theory was able to isolate the outer most electron on an atom (the valance ring electron) as negative charged and then realized that it was attracted to an atom that need an extra electron that we were able to show that the flow was neg. to pos.