"Energy from the Vacuum - Concepts & Principles"
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Much appreciated.

I never had the full secret of the activation (I know one person who probably does, but who will not work on that project). A French project I was connected with did get activation for up to 5 weeks, slowly decaying away during that period. But they never succeeded in getting the "stick" where it would hold and not deteriorate. Sweet's activation held unless the magnets were shocked, the circuit was shorted, or some other strong intervention occurred.

Very best wishes,

Tom Bearden

Please pass this by Tom at his convenience. 

 It just occurred to me that one of the issues with producing self resonance in PM materials has to do with the NMR frequency dependence on field strength.  My intuition suggests that with barium ferrite or similar materials the self resonance is achieved by a resonant coupling between the nuclear spin moments and the ferromagnetic moments of the paired electrons in the respective shells.  Following this notion then, conditioning the magnets will entail adjusting the field strength and uniformity to select for an NMR resonance that will couple constructively with the ferromagnetic domain oscillations.  Since these materials are also piezoelectric, then there is also a phononic component to the physical resonance.  This suggests to me a physical dimension parameter that selects a phononic resonance that interacts constructively with the other two such that the nuclear spin can extract energy from the vacuum and couple it to the electrons giving rise to physical as well as electromagnetic vibration at a characteristic frequency.  The alignments possible are determined by the thermal and magnetizing history of the barium ferrite pieces. Heating can both demagnetize the sample partially or completely if the curie point is exceeded and it can alter the crystal structure both its orientation and domain size.  So the properly treated material will have a special crystal size and orientation along with a field strength tuned to obtain electromagnetic resonance in concert with the physical resonance.  Power can then be extracted with an inductive coil and perhaps from the piezoelectric potential across the piece as well.  One might detect the  self resonance by slowly heating a piece of barium ferrite with a small coil hooked to a an oscilloscope and watching for the appearance of an AC signal.  The trick would then be to demagnetize the piece just enough at a higher temperature so that when it cools down to room temperature the field strength comes into the resonant regime. The long term stability will relate to the robustness of the crystal domain size and orientation.  The ceramic processing used to make the piece becomes important here.  Since Tom is fond of nonlinear effects, it may well be that the field wants to be nonlinear in some particular way again adding to the difficulty in obtaining and sustaining resonance. I may be way off, but perhaps these ideas will be helpful.  I as yet don't have a way to do these kind of experiments, but I am moving in that direction.

Best of health to you and Tom and families.

Cheers,

John R