geomagnetic reversal

(redirected from Pole reversal)
Also found in: Encyclopedia.

geomagnetic reversal

n.
A change in the earth's magnetic field resulting in the switch in position of the earth's magnetic north and south poles. Also called magnetic reversal.
Mentioned in ?
References in periodicals archive ?
However, it's simply too early to say for certain whether this behavior will lead to a full pole reversal.
With the last magnetic pole reversal for Earth occurring over 780,000 years ago, but with knowing too that over the course of the last 20 million years the pattern of pole reversals has been at a steady 200,000-300,000 years, this MoD report concludes, it cannot be ruled out that these mysterious "atmospheric objects" recently ejected from Siberia may be some type of early warning system of a catastrophic event about to occur.
More worryingly he asserts, without evidence, that there will be a magnetic pole reversal in late December.
Washington, Dec 1(ANI): Magnetic pole reversal is a common phenomenon, which occurs on Earth, gradually over the millennia.
Bliss, the coming years will be characterized by, "a pole reversal, where those higher prices that used to translate into more revenue for insurers, become higher costs that the hospitals and insurers will have to bear.
The motors, designed as external rotor motors replace the traditional mechanical pole reversal by electronic commutation, which functions without wear, sparks or interference.
The rotating magnetic field in the stator is produced by electronic pole reversal, which also serves to adjust rotor speed.