Hi all, first off I just want to say how exciting I am finding the ideas discussed in these forums. Thank you to all the EU folk for the information, knowledge and wisdom(!) Ive encountered in here. Im glad to say that a lot of books/articles/announcements in astronoy/cosmology that Ive read since discovering EU seem embarrasingly silly!
This particular Thunderbog article left me with one or two niggling questions which I'd like to see dispelled. Michael Gmirkin often uses the term 'byproduct' when referring to magnetic fields arising as a result of electric current flowing. I was under the impression that magnetic fields and electric currents are in fact one indivisible 'entity'. (Which underscores the point of the original article I suppose.) Is this usage a semantic convention or does EU maintain that electricity and magnetism are two separate and distinct yet causally related components?
Furthermore I was under the impression that Universe is filled with magnetic fields and that any that arise due to current flow merely distort or integrate into existing ones. Am I incorrect in this view?
Finally, do magnetic fields propogate at a finite speed outward from their source current-flow? I presume the speed of light to be the limit since light is EM? I know that the intensity increases with increased current flow (this seems to be a bit of a 'chicken and egg' affair...) but does the area in which the magnetic field is measurable increase too? I assume it would.
Excuse what may be hopelessly naive questions!
P.s. I thought Id posted this earlier but I never saw it appear in the thread so Im posting again, apologies if it becomes a double post... (first timer