I've been thinking a lot lately about how wireless electricity works and how resonance works in general.

I was thinking about how a tuning fork when rung can make another tuning fork vibrate because its in resonance with the other one and how that relates to wireless electricity.

My thought is, could it be possible to create a similar resonance between the earths natural resonance frequencies and then like the second tuning fork build a circuit that resonates with earths natural frequency to generate electricity from earths natural frequencies.

Sort of how a wireless electricity receiver works but tuned into the earths natural frequency's.

To my knowledge the natural frequency of this small planet is 7.83 Hz, so should you ever get busy building and in fact succeed in generating that which you are aspiring to achieve with regards to generating (free) electricity using Earths natural frequencies this way then please share your findings here, lord knows they're much needed :-)

yup this is a huge area for advancement. there's the schumann resonance around ~8hz like lynx said, I believe somewhat variable with nearby thunderstorms etc. They sell on aliexpress cheap spiral-coil-pcb schumann resonators which are dubiously marketed to enhance a room's audio clarity or whatever, and of course improve sleep relieve stress vague stuff :) (yeah I got one).

But then in the end of N.Tesla's "The Disturbing Influence of Solar Radiation on the Wireless Transmission of Energy", when he's talking about the dayside water evaporation, regarding it as frequency-dependent loss of power due to diurnal evaporation of water, for earth electrostatic pressure-wave propagation/resonance or thereabouts, he's like "With waves 300 meters in length (1MHz) economic transmission of energy is out of the question, the loss being too great. When using wave-lengths of 6,000 meters (50 kHz) it is still noticeable though not a serious drawback. With wave-lengths of 12,000 meters (25 kHz) it becomes quite insignificant and on this fortunate fact rests the future of wireless transmission of energy."

And so I'm all like: "tentatively, I guess 50 kHz is the target; 25 kHz is barely ultrasonic, thats a big ass coil". I got a spherical mylar foil (conductive) balloon, and I think 64ft of conductive string (made for 'wearables' circuits), and a tiny helium tank made for kiddy parties (helium air mix doh). Balloon = Sphere 1, oscillating fork, Earth = Sphere 2, corresponding big reservoir, incompressible electrically so as to shake well when thumped electrically?

Anyway I'm still early in my efforts to learn/imagine how "AC Capacitance of 2 conductive spheres" works, but I recall Tesla talking about "the capacitance of two spheres, of __cm diameter and __cm apart", and elsewhere referring to the earth as behaving like a "polished metal sphere", like a hint lol but maybe thats just me reaching.

BUT, with a loud enough (let's say 3kV, which is what evostars' "tesla oscillator circuit" i got can do) AC sine wave impressed upon the earth from a conductive balloon in the sky, I believe the earth (sphere 1) and the balloon (sphere 2) may somehow behave like point charges, analogous to 2 capacitor plates (AC), so that the ground point may form a resonant AC capacitor with the balloon point, perhaps somehow to bear electrical loads elsewhere with tuned receiver = generator, as a slick-a.f. form of solar energy reception? Supposing that earth's charge is sympathetic to the Sun's, which is to the Milky Way's, up the chain? What now? Thunderbolts Project folk say so :)

My favorite is N.Tesla's line in a patent about "transmission of electrical energy" [(645,576; page 3 (1900)], that an elevated spherical "capacity" or terminal/antenna be: "...of large surface, formed or maintained by such means as a balloon", which reassures me that this is not at all my own idea, it's from Tesla upstairs, thank heavens. In that patent he's also mentioning spiral coils on the ground (bifilar, I suspect), oscillating the elevated Terminal, and there's a quarterwave/length of wire relationship... but I'm still wrapping my head around that aspect.

I got a few things posted on my setup so far on workbench here, peep & teach/learn anytime, glad to see other ppl feeling the impulse :)

Yeah I think its possible but I'm no electrician and what I do know about circuitry is pretty much just simple stuff. I figured there has to be a way to tap into this somehow, I barely understand how wireless electricity really works. From my understanding its an AC current going through a coil at a frequency which creates an alternating magnetic field which is then picked up by a receiving coil that is somehow tuned to the transmission coil so the nearby alternating magnetic field inducts a current into the receiving coil. If you have any good reads on how the coil gets tuned I'd be interested in reading that because I don't really understand how you tune a coil to another coil. I figured I'd post the idea of using earth frequency to somehow tune something to it because I haven't much of a clue of how to do it, just seemed like a good idea. Imagine if we could literally just connect a special circuit that receives a current from earths natural frequencies to power anything we wanted. For instance just make one of these circuits somehow throw it inside a Tesla and plug the tesla straight into it lol it'd be so cool if it worked.

Then again I have no idea how big it would have to be in the first place. I wish there was more solid information on wireless electricity, everything I read on it never really fully explains how it works or I'm just not comprehending it.

I just thought of something didn't someone accidentally shatter their magnetic torus core by winding a coil a certain way a while back. They said they pulsed DC current through it I think and if the magnetic fields resonated and it would create a feed back loop like 2 tuning forks vibrating off one another so the magnetic field just grew stronger when he got the current spike until the cores shattered.

So couldn't one build 2 circuits in tune with one another to endlessly feedback a inserted current that amplified itself infinitely provided the circuit never broke. Although I suppose adding a load to such a circuit would change the frequency interrupting the feedback loop. You'd literally need to tune it to every load you were to put on it so the feedback loop would still work.

Was wondering if anyone knows if its possible to create a tuning fork or tuned object that resonates with the earths natural frequencies so it always vibrated.

Then what if you were to magnetize it, then it would always be vibrating and it would be a magnetic field in flux from that natural vibration that could induce a current in surrounding coils to generate voltage and current?.

Feel ya, i got petroleum engineering degree but am learning about electricity & electronics totally "on the fly", it's thoroughly intimidating but also magical. We might have an advantage in that we're not indoctrinated to the 'present understanding' of the field, which may be faulty.

These guys did a similar study called 'Electrical excitation of the local earth for resonant, wireless energy transfer', with pretty good description of setup, and they even use 25kHz as one of their test frequencies:
https://www.cambridge.org/core/journals/wireless-power-transfer/article/electrical-excitation-of-the-local-earth-for-resonant-wireless-energy-transfer/3A7C08866CC904885D03E3E32578F7D4#

here's the last few lines of the 'conclusion' of their report:

"The transfer distances and efficiencies reported here were for an un-optimized, proof of concept, system. The 80% efficiency at 1.5 m is comparable with many near-field WPT techniques. However, the theoretical transfer distance that can be achieved with this method is not limited or based on field coupling physics, and instead relies on the redistribution of time varying charges along the surface to excite the receiver. Theoretical scaling shows promising results as the estimated transfer distance may be extendable to much greater distances than what is possible using other methodologies. This technique may have immediate applications in powering distributed monitoring devices such as military and agricultural sensors. While the power levels measured here are at a capacity to operate low energy devices, continuing research on this method to expand the distance, improve efficiency, reduce receiver size, and increase power could one day offer revolutionary and possibly disruptive technological impacts for society."

This guy claims to have achieved something very similar to that study, but at much greater distances but I think his designs a little different and larger. https://www.youtube.com/watch?v=VBQndAH3hWQ https://www.youtube.com/watch?v=BwfzWl-6MmU https://www.youtube.com/watch?v=43m4qIEg4j8 I actually found him on tiktok of all places, seems like he understands a lot about wireless electricity. Basically he does the same thing but uses earths resonance to achieve greater distances. Its basically a recreation of Tesla's Warden Clyffe tower, but smaller.

So far I think he claimed somewhere in one of his videos to successfully transmit electricity about 50 ft or so...

He's quite an interesting character if you look at his youtube channel. Seems like he knows what he's talking about too. So far his video explaining how to tune a receiving coil is like the only one I've actually kind of understood. Except I don't have an oscilloscope or a signal transmitter. Supposedly it can be done with a multimeter but I haven't a clue how to do that...

Of course the transmission of power wirelessly is one thing, the generation of the power itself is another. What I was thinking is what if we skipped the transmitter and somehow tune a circuit to the earths natural frequencies to simply receive electricity from the earth itself.

I think the Answer is in the tesla drawing for the ladder of  frequency Tesla was Smart 
lucky he did try to leave clues. right to left

did anybody mention hendershot? his device is like a radio receiver tuned to the earths resonance https://the-hendershot-generator.weebly.com/

Interesting I've not heard of hendershot till now, but thats more of less the idea, somehow create a circuit that provides power from earths magnetic fields natural resonance.

Little update on this concept for yah if anyone's even interested in this.

Anyway I was thinking about how one would make a circuit that could interface with earths natural "Shuman Frequencies" to create electricity. So I randomly did a thought experiment in my head where one takes a Steel Tuning Fork and puts a strong magnetic field through it using a strong magnet attached to it. Then you put a coil or inductor around the base of the tuning fork, then strike the tuning fork to see what sort of current could be generated by it if any because the tuning fork in theory would modulate the magnetic field creating magnetic flux through the coil.

So my tuning fork I ordered came in the mail today and I did a small experiment the same as I outlined above and hooked up my multimeter and upon striking the tuning fork I did manage to get some AC micro amperes out of it. Nothing special but I figured I'd share this with you guys incase anyone else could make anything of it. No volts but at least I got some kind of result.

Even more interesting would be if I could tune the inductor to the same frequency of the tuning fork to see what results I'd get then, but I don't really know how to tune inductors, and I don't have an oscilloscope.

What I was imagining is using high frequency sound waves to transfer electricity via sound waves. Probably not very efficient but oh well.

Tell me what you think.

https://www.youtube.com/watch?v=rieJef500nU Thought this was an interesting perspective on vibration and energy.