Tesla's Earthquake Machine...
(www.forbes.com)
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That wasn't what I was saying... The "earthquake" machine was actually a device he wanted to use to harness the free electricity in the air... Cheers fren...
It was basically a jackhammer.
https://en.wikipedia.org/wiki/Tesla%27s_oscillator
An oscillator isn't the same as a jackhammer... The oscillator used sound harmonics if I remember correctly...
A jackhammer is a pneumatic oscillator.
Tesla used an impact at each stoke, more like a square wave, instead of a crank with a sine wave output.
A square wave has plenty of harmonics.
My understanding of this --- it's half of a mechanical multivibrator. Old tube radios in cars used multivibrators to up the voltage for the vacuum tubes.
Ahhh got ya... I've admired Tesla most of my 61 almost 62 years... He was beyond brilliant... It's a shame what our "government" has done to his legacy...
There are strong rumours that he did build it, he spoke of terrible weapons he had designed. Its seems as if the 1906 Tsunguska meteor strike in Sibera was Tesla trying it out, but this is rumour