Steven Marks secret

[nix85]

Nevermind.

[Raycathode]

you would need a lot of them or get one of those road tiles and a large bank of solenoids
but would the loses be greater than the gain is the question.

[Bob Smith]

https://www.youtube.com/watch?v=YO8cwG7MtM8

He has not found an investor for several years. Now he travels around India with this device. There is a video on YT.

It appears he's heterodyning the 5 frequencies. Probably harvesting the standing wave.
It also appears to me that it's load-driven, rather than source driven
It also appears to me that it's an open circuit, as opposed to a closed loop system; this enables the device to utilize the infinite reservoir of ambient charge to power devices hooked up to it.

[nix85]

I read today that Faraday said, i paraphrase, "what a coil is to magnetism, so is capacitor to gravity". I don't know the source, or whether he really said it, i read it in Cramp's book on antigravity, but in either case it's true.

[r2fpl]

It appears he's heterodyning the 5 frequencies. Probably harvesting the standing wave.
It also appears to me that it's load-driven, rather than source driven
It also appears to me that it's an open circuit, as opposed to a closed loop system; this enables the device to utilize the infinite reservoir of ambient charge to power devices hooked up to it.

I agree  -  harvesting

That is why there is no patent and investors. There are many solutions but the first is from Tesla. Coils and antenna design are noteworthy.