In a wire coil, an electric current consists of a slow movement of electrons, the electric field from these charges though not detectable due to the presence of the electric field from the protons, never the less fills space both near and very very far from the wire. But owing to the (slow) movement of the electrons through the wire a Lorentz contraction takes place which changing the strength and shape of the electric field, it is now no longer neatly countered by the static proton field and what we term a magnetic field is born.
John Berry you are on two a very good train of thought, that Relativistic properties are due to the phase angle of the magnetic field. I worked on a similar idea some years ago. http://www.gsjournal.net/Science-Journals/Essays/View/3900 I was going to send this paper to the next SPAIF conference for consideration. Even though I have been invited back, I don't want to bother with all of the editing that will gut the paper and make it useless. I did this once with The Control of the Natural Forces I don't feel like suffering through the process again. I can put the publication fee to better use. Frank Znidarsic
