I realize that this is routinely trivialized, rationalized away and ignored; nonetheless, those who do so are merely dancing around the real question here! "Why are em fields perpendicular (when one is inducing the other, purely speaking?)" This is a fascinating question, especially because these two fields are perhaps the only things in nature wherein a force in one direction causes an "An equal and perpendicular reaction!" The other mystery about all of this is that this question probably holds the secret to the underlying nature of a photon: why does this oscillating em field traverse space at the speed of light, and without the dispersion of individual photons. Even if you hold that the waveform travels ahead of the "particle aspect" of the photon, this is just a superpositional state of possible outcomes, but all of those outcomes still result in a single "particle aspect" traversing one path, and arriving as one particle. Scott
