You could easily construct a small coil for physical measurements.
Agree, a few minutes of work.. I was surprised they had not tried anything.
Suspect all coils have a Self Resonance, as they all have Inductance and Capacitance, this is not unique to Patent 512,340 coil. When the inductive reactance cancels the capacitive reactance you have resonance.
Nothing like stating the obvious.
Stacking a pair of flat identical spirals should increase the overall inductance of a single isolated flat spiral and if they are closely coupled (one on top the other) the current flows in the same direction on the top and bottom spirals. Then one would suspect that the result would yield ~ 4 times that of a single flat spiral, thinking of this a a Two Turn (N=2) Solenoid equivalent where a Turn in this case is the flat spiral.
Agree, 4X for Tesla patent, or we could make a non-inductive coil if the two are connected at the same end. I've never seen a non-inductive WW resistor made that way but, maybe we could get some free energy from it... Again, just stating the obvious.
Seems like it would be easy enough to work the math and build up a coil. Measure it with the cheap VNA and RLC meter. I may spend a few minutes tonight and see if they will award me some of that warp drive grant money for my efforts.
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Forgot to say, I was impressed you actually got him to drop the delusional BS and somewhat focus on something real for a change. Good job with that!