By Maxwell's equations, electromagnetic waves seem to come about by means of magnetic fields generating electric fields and in turn electric fields generating magnetic fields (the loop continues.) But how is this not perpetual in the context that energy is not conserved? It seems as if a magnetic field is decreasing, the electric field that is generated should not in turn be able to "out weigh" the magnetic field that generated it in the first place giving rise to a, again, maximized magnetic field and thus a continued rhythm, if you will. If it was a simple conversion of energy, maybe, but they are supposedly in phase? They hit both maximum and minimum at the same instant, supposedly. Also, if these are the attributes of electromagnetic waves, (this continuous "re-induction"), does the same apply with conductors? That is, take two solenoids, one within the other. If a change in current in the outer exists, then there exists a change in magnetic flux through the inner solenoid. This in turn induces a current within it, which then again, creates a change in flux though the outer solenoid bring about re-induction of its coils. Does that make sense? Nevertheless, it seems like a never ending loop, and possibly a logic fallacy (on my part) that I cant seem to straighten out.