I thought this is a good backgrounder on Space Weather. For instance at ~9 minutes I learned about the Current Ring I'd been hearing about. The local effect of a CME depends on the rocks underfoot, and N-S power lines are more vulnerable than E-W.
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.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
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.Impossible is just something we haven't done yet. -- Langley Outdoors Academy
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