Hello John, Glad I brought out a fellow lurker!
>I'm more a lurker here too, but would you mind clarifying the geometry of your >question? For the purposes of the thought experiment, just think of a free floating toriodal magnetic field - don't worry yet about what is generating it - but we can talk about that too if you want. The angular velocity would be measured by an outside observer. I do realize here the issues with the frame of reference. Rotating objects and fields do present a special problem when considering this... >Anyway at a simplistic level I think the fields would tend to become >disconnected, they could be thrown off as radiation as fields disconnect from >the near field. Yes, I have thought of that. Perhaps others could comment, but I see no reason this should be true. My understanding is as long as the field is not expanding or collapsing it should not radiate EM, but I could be wrong. I believe what we are talking about is a standing, or scalar wave. My thoughts are that a magnetic line of force is torsional in nature, that is to say it is a twisting of space. This is along the line of the Cartan-Evans theory. As such, as the lines of force rotate they would "pull" on space-time or stretch it, either pulling it to the center of the field or pushing it outward. In relativistic terms, it is like trying to accelerate an object to the speed of light. The closer you get to the limit, the more energy it takes to accelerate it further. Why should the "mass" of a magnetic field be any different? Just as the object accelerated to reletivistic speed experiences time dilation, why wouldn't the magnetic field? So as we try and accelerate the field, it would keep taking more and more energy to accelerate the field any further. This would be because the energy being expended is being used to curve space/dilate time. The more the space becomes curved, the harder it becomes to accelerate the field. That is my conclusion at least... >But if you are talking about a geometry such as that of the N-machine AKA >Homopolar generator then the question would be "how do we know the field is >even rotating?" I should have added in my descriptions - relative to an outside observer - but I do understand your point. I have actually thought about this in detail, but I think I would have to develop this further before giving you my full explaination for that one. But, I will try anyway. All of matter is made up of relativistic EM fields already. So any attempt to move a mass will resist - push back. We call that interial mass. So rotating any object will cause some time dilation - although I call it a change in delta-t, a change in the rate that time goes forward. Without getting into to many details, this should always induce an E-field that can create a current even if the conductor is not moving relative to the rotating mass. So in the case of a homeopolar generator I dont think it is necessary for the conductor to be crossing field lines to induce a current - the current is generated by the curvature of space-time itself. If you are familiar with the work of Bruce De Palma, you should also consider his experiments with dropping spinning balls. The results of his experiments are hard to explain withoutgoing beyond special relativity... >It is also worth noting that special relativity is wrong but that's another >subject... Yes, but how is it wrong? That is the important question. On Mon, Jun 8, 2009 at 3:47 PM, Michael Crosiar <[email protected]> wrote: Hello vortexians, Before I begin, I want to thank all of you. I have been lurking here for years. I have seen the trolls come and go. They amuse for a while, then they get old. But those of you who are of a true vortexian spirit always find new and exciting food for the mind to try out. I don't have the math or science background that you have, and yes, I am jealous. But obviously I do have the interest or I would have gone away a long time ago. I don't post much, guess I'm afraid I'll get shot down - and I know I wouldn't have had the time to follow and respond to my own threads - and that would suck for all of us. But circumstances change and I suddenly find I have much more time than I would like. I've grown a little older and am not so scared to raise my hand in class. So agian, thank you for sharing and thank you for putting up with my incessant lurking :) And if I go astray, please let me know, I have gained a deep respect for all of you. I will not be offended. I have a simple thought experiment I would like your comments on. We create a torroidal magnetic field and rotate it at relativistic velosities, such that the inside of the torroid would be rotating at near the speed of light. The outside of the field would extand outwards and would have an agular velocity that would be greater, proportional to the increase in circumference. First, is that correct? Clearly nothing can go faster than the speed of light, but as we increase the speed of the rotation, the energy must go somewhere, yes? Would this cause the mass of the field to change? In other words, would it bend space-time inside the field? And could the curvature be negative or positive depending on the direction of rotation relative to the N/S pole? Would time run at a different rate inside the field versus outside the field? If we were to place a radioactive isotope inside the field, could we cause it to decay faster or slower? I'll be anxiously awaiting your insights, C. Michael Crosiar
