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Old 11-02-2014, 05:11 PM
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alocky (Andrew lockwood)
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Join Date: Aug 2010
Location: perth australia
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You get similar audio frequency modulation of the geomagnetic field due to the interaction of the solar wind and the geomagnetic field. Any of us old enough to remember HF radio as a long-range communication method will remember the annoying idiot who used to get on air and whistle tunelessly around sunset...
Other solar interactions used to have names like 'lions roar', etc.
I remember the voyager team producing a similar recording to this in the 80s.
Cheers,
Andrew.
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