Tesla was working with resonant frequencies, having calculated the resonant frequency of the Earth, and using that in his transmission of working electricity. I’m not going to argue with what he said he was doing, he was way ahead of his time. He also was working with mechanical resonance, and he almost destroyed a building in NYC with a little hand-held vibrator. All in all, a very interesting man. And it is truly too bad that he had no interest in women.
Like Scotty said, we canna change the laws of physics. There couldn’t be one single electrical resonance for the earth, being the agglomeration of diverse materials it is, but any approximation to that would be in the infrasonic.
“He also was working with mechanical resonance, and he almost destroyed a building in NYC with a little hand-held vibrator. All in all”
I remember reading about that. He clamped it to a beam.