Propeller Head Plaza

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RE: Oh, dear

Posted by unclestu on April 30, 2015 at 17:19:48:
"In normal mode descriptions", ....

It doesn't say that it is the only mode. The fundamental mode is always the lowest frequency, QED.
The passage quoted totally ignores other possible pathways for the source of the Schumann disturbances.

Oh Yeah, 60 hz as the 8th partial is certainly way beyond the percentages you were quoting.