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Old 11-21-2012, 09:06 AM
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GSM GSM is offline
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Through the Earth ?????

Suppose the circa 12Hz Schumann frequency relates to circumferential Radiant energy from Solar-polar emanations;

f = ('c' x Pi/2) / (Pi x d) ?

Such calculation would need to take account of atmospheric ionisation height and layer angle at the polar regions.

Cheers ........... Graham.
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