When I start describing the magnetic field moving through space, I speak of the E- and B- fields and wave my arms and you may imagine that I can see them. I’ll tell you what I see. I see some kind of vague, shadowy, wiggling lines ... and perhaps some of the lines have arrows on them—an arrow here or there which disappears when I look too closely.... I have a terrible confusion between the symbols I use to describe the objects and the objects themselves.
