Information duly noted and passed along to my computerless friend..
Bob
Jerry W. Decker wrote:
>
> Hi Bob!
>
> You were asking how they actually detect the Schumann resonance....good
> question as any medium can be vibrated at essentially any frequency...I
> think I read in the search I did for Schumann resonances that they were
> picking up electrical dischages....there was even a picture of the
> detector and it was electrical....it is very hard to sense low frequency
> below about 15hz...