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Post by bluemingidiot on Jan 13, 2019 7:08:41 GMT
"Shifting north magnetic pole forces unprecedented navigation fix" The north magnetic pole, is moving at about 50 km (30 miles) a year. It didn’t move much between 1900 and 1980 but has accelerated in the past 40 years. news.trust.org//item/20190111153455-9u077/Be interesting to see if this affects any wildlife migrations.
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Post by oxankle on Jan 21, 2019 2:08:52 GMT
This has happened before. I seem to recall that the evidence showed the shift/reversal accelerated and completed in a very short time by archeological standards.
Just looked it up; The last pole reversal took less than 100 years. However, the poles can "wander around" for centuries before deciding to reverse.
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Post by bluemingidiot on Jan 22, 2019 4:54:33 GMT
Magnetic pole shifting is distinct from magnetic pole reversal.
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Post by oxankle2 on Feb 21, 2019 0:23:43 GMT
Yes, shifting and reversal are not the same; however, reversal starts with a period of shifting, and no one knows when "shifting" becomes reversal. Be interesting to watch when it happens. I am sure that somewhere, someone has studied this and can tell us how many times the archeological evidence can show reversal.
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Post by bluemingidiot on Feb 21, 2019 8:03:28 GMT
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