Pretty clearly, we're never going to learn anything about telepathy here. But the question of frequencies for radio waves has been brought up. According to Wikipedia, Extremely Low Frequency radio (used to chat with submarines) is in the range 3 to 30 Hz.
https://en.wikipedia.org/wiki/Extremely_low_frequency
So could someone explain a little more to be about whether there are radio waves at these very low frequencies...with the understanding that my knowledge of radio is only a little better than pushing the button on the radio to choose a channel. So simple explanations would be appreciated.
Jack by the Hedge's answer is correct, and he's pointed you to a reasonably good explanation of the electromagnetic spectrum. As wavelength and frequency change (reciprocally), the way electromagnetic waves affect other things in the natural world changes. That's the impetus for chopping up the spectrum into distinct bands, giving them different names, and for practical purposes talking about them like they were different phenomena.
Technically any frequency lower than infrared (another arbitrary slice of the spectrum) is "radio waves." But we chop up even that part of the spectrum and call it different names such as "microwaves." Microwaves are just radio waves, but at a frequency that -- among other things -- has a profound effect on water molecules.
The useful radio spectrum -- radio waves whose frequency-dependent properties make them useful for sending signals across long distances -- get chopped up into sections that have names you may have heard of: VHF, UHF, etc. Or also, the AM band, marine radio, etc. Frequencies measured in the kHz, MHz, and GHz are especially useful for terrestrial (and solar system) communications for various reasons all having to do with their physics.
Part of the physics is the ability of waves at different frequencies to penetrate objects of various densities. Visible light won't pass through human bone, but x-rays (higher frequency) will. But high-frequency radio doesn't go through water: the water absorbs it and gets hot, which is the microwave oven principle. There's a particular frequency of infrared to which human skin is especially transparent, and that's used for all kinds of medical purposes like communicating with subdermal implants. Another part of the physics is the electrical power needed to generate those waves in the appropriate materials. And a big part of the physics is the size of the antenna that's most efficient at producing and detecting those waves. The wavelength (the reciprocal of frequency) and the effective antenna length relate to each other.
So we circle back to the ELF radio used to talk to submarines. Low-frequency radio can propagate great distances through all kinds of materials. But the antenna required to produce that wave at a useful amplitude is basically the size of a county. So of course the U.S. military built some. The one you cited to was strung overhead as a wire. The one in Michigan was subterranean. You may recall the
Titanic's antenna for its Marconi wireless was strung between its two masts. (Not tecnnically ELF radio, but it illustrates the relationship among frequency, antenna size, amplitude, and efficiency.) Congruently, the submarine that wants to pick up ELF radio transmissions has to trail a long wire antenna out behind it.
And at 1-3 Hz, the waveform doesn't change very fast over time. So there's a limit to how much information you can modulate onto such a signal in a given space of time. The price for being able to talk to a submarine halfway across the globe, aside from the cumbersome size of the base station, is that you can't really say very much because you have to talk very slowly.
So when Michel says that 30-100 Hz is not radio waves, he's wrong in the physics sense. But we understand that what he means is that it's not among the frequencies of radio waves that are practically useful for conveying reasonably large amounts of information over reasonably long distances, using reasonable antenna sizes and reasonable input power requirements.
