OrionWorks wrote: >>From Mike Carrell > > My comments spaced between Mike's > >> 1) Alnico will not discharge or decay except by strong heating >> [to the Curie point] or a very strong magnetic field, neither of >> which exist in the Mylow setup. It takes a very strong magnetic >> field to magnetize the alloy, as with ferrite or neodymium. >> These typically relax some after the magentizing field is >> removed, but thereafter are very difficult to demagnetize. > > And there lies the rub. According to Mylow the Alnico magnets > gradually weaken in strength, particularly after only several hours of > operational use. What phenomenon could be causing the gradual > degradation of their strength? Terry is right to point out that the > fact that the Lorentz force (which I had eluded to) would seem to > hinder the disk's rotational speed, making it stop dead in its tracks. > I brought up Lorentz Force simply because I was at a lost to come up > with a better speculative explanation as to what kind of "physics" > might be involved. > > Again, I repeat, what seems to be glossed over here is how much energy > must be expended to remagnetize the alnico magnets. My suspicion is > that if one took that operational cost into consideration there may > actually be no OU, since in order to "close the loop" one would have > to use the energy derived from the rotating disk to remagnetize the > magnets. From what I gather the rotational speed of the Mylow disk is > woefully inadequate to the task. Therefore, no real OU exists here.
If he's really found a way to turn the stored energy in a permanent magnet into kinetic energy, I think that's pretty fascinating, whether or not it's OU. I've never heard of anything that would do that and off the top of my head I can't imagine how the mechanical coupling of the system could work. The system would need to take advantage of the tiny difference in strength as the magnets weaken just a little on each rotation (otherwise "better" magnets that never demagnetized would work just as well without expending any energy). I really have a hard time seeing how that could work, and I'd love to see an explanation (something like "A pushes on B which results in a torque at C", *not* something along the lines of "The ZPE energy maintains the balance so that's why it's all really OK even if you can't understand where the torque is coming from"). > >> 2) Mylow reports the stator magnet getting cold during operation. >> This has been reported before. > > This does suggest an entirely different kind of physics may be > involved, something that is yet to be officially recognized or even > acknowledged by the scientific community. Fascinating stuff. Magnets getting cold to drive the motor is in a totally different category from a motor which gobbles up the "charge" in the magnet. The magnet that gets cold as its heat is converted to mechanical motion is a straightup second law violation. And, of course, it also is very hard to imagine how one might link the thermal energy in the magnet to torque on the disk! > >> 3) The disc accelerates during the demonstration. The >> protruding rotor magnets will provide an aerodynamic drag. This >> is not a pedulum. Jones reports that certain gongs can grow louder >> before dying away; ths is a mattor of complex modes of vibration >> and human hearing, not rotation of a disc. >> >> 4) One could hypothesize a large, strong rotating magnet or >> magnetic field under the floor which could accelerate the disc as >> an induction motor. One would like to see the demonstration moved >> an *arbitrary* point on pavement or a earthen field. > > But that would involve a conspiracy of sorts! Right. Anybody who puts an experiment on a glass table to show there's nothing hidden underneath and then puts up a U-tube video of it doing something theoretically impossible is already acting an awful lot like a stage magician. "Nothing up my sleeves!" That's not the sort of disclaimer you see in most normal science papers. > ;-) Also, such a > hypothesis would not seem to need a stator PM configuration at all. I > would think the rotor configuration would rotate all on its own. > Incidentally, I recall Mylow stating that he reversed the position of > the stator magnet 180 degrees. This, in turn, caused the disk to > rotate in the opposite direction. > > Personally, I wish someone would construct a disk made of a > non-magnetic/ferrite material like Derlin to see if it would continue > rotating. My uneducated bet is that once the alnico magnets are > repositioned on a Derlin constructed disk, along with the stator PM, > the entire assembly will not rotate. My suspicion is that the aluminum > disk is an essential component of the physics involved. > > But again, this is all speculation on my part. > > Regards > Steven Vincent Johnson > www.OrionWorks.com > www.zazzle.com/orionworks >
