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Robert Winner

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Geomagnetic reversal

A geomagnetic reversal is a change in the Earth's magnetic field such that the positions of magnetic north and magnetic south are interchanged.

This happens about every million yeas the last one 780,000 years ago. Since there is not set schedule this could occur any time.

What consequences could we expect .... How would you prepare ....

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    Dec 11 2012: Our biggest problem will be at the magnetic minimum. Cosmic rays that normally gather to form the Van Allen belts will penetrate the atmosphere producing effects similar to after a solar flare. Interfering with RF communication etc. If a large solar flare occured at the same time you could get disruption of electrical systems similar to that produced by an EMP weapon or nuclear explosion.
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      Dec 11 2012: Peter this aligns with what I have read. Only one person stated a time factor of about two or three days until realignment is complete. Some have stated that the current "direction" has weakened and when the shift occures that the new direction will be stronger.

      Is there any validity to those assumptions.

      Thanks for the reply. Bob.
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        Dec 12 2012: Geological evidence suggests the realignment wil take many years. There are also records in rock strata of the field becoming chaotic for a few hundred years and the re-establishing in the same orientation. It's these chaotic periods that are really the problem for us.

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