It is thus theoreticly possible for such a disk, of the perfect set of size and rpm's, at an unknown resonate frequency, to draw an incrediblely small amount of momentum from the relative motion of the Earth's field spinning inside of the Sun's, even while itself sitting on the face of the Earth and not in any real motion relative to that field from a macro viewpoint. This would be akin to those quantum level 'eddys' that plague researchers trying to develop room temp superconductors.
1. Lots of ifs and buts, not even a theoretical model, just a make-believe story about how the Sun's magnetic field can have higher intensities than our Earth's magnetic field at ground level. Allow me to smirk.
2. You seem to conveniently forget or knowingly exclude the magnetic field depletion from the "fuel" magnets that are constantly moving through powerful magnetic fields. These magnets will decay their power orders of magnitude faster than your perfectly aligned solar magnetosphere resonating positive feedback field increase. Do you understand this?
3. Supercooled materials, or even a supercooled machine of similar design COULD work at close to 100% efficiency, but certainly not over, again, same reasons as above. A non over-unity machine is useless, and maintaining supercooled temperatures requires significant power. It's useful if you want to transmit power over long distances, but this use scenario is not profitable.
Again, people seem to forget that "big magnet" can magnetize "small steel piece", but they never think that the big magnet is affected as well. And we're talking about a machine that uses all strong magnets. Nothing really vanishes, everything transforms.