Where better to ask about the resonant frequency of the earth. I first learned about the earth’s natural resonant frequency (if the earth were rung like a bell) on a spectrum chart at a university. The number was the lowest number on the chart, even below brain wave frequencies, was less than 1Hz (ELF- Extra Low Frequency), and was a fractional number. But since seeing that chart there’s never again been any place where the earth resonance can be found.
What is found now is a different phenomena called “Schumann Resonance,” which describes the natural resonance in the wave guide existing in atmosphere between the earth surface and the ionosphere, with a center frequency of 7.83Hz and a bandwidth of 3 – 69Hz.
After asking reference librarians and many online searches, we come now to the brain trust here at part15.us.
What is the resonant frequency of the earth?