Originally Posted By: Orac
If you google with the right name Bill you will get what you seek smile

It's called Schumann resonances first proposed by Nicola Tesla and named after Winfried Schumann.

http://en.wikipedia.org/wiki/Schumann_resonances

Actually it was Mike who was googling for the info on the resonances. And I was trying to clarify that I was looking at the radiation we are generating at power frequencies. I have done a little searching and haven't found anything about how much 50 and 60 Hz radiation the Earth is sending into space.

That is an interesting link though. I hadn't thought about that possibility. So, do the Shumann resonance frequencies radiate enought that we could use them to detect planets with atmospheres at interstellar distances?

Bill Gill

C is not the speed of light in a vacuum.
C is the universal speed limit.