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System of orbits
the sun
There are two phenomena:-polar wanderingmagnetic reversals
Time periods between Earth's magnetic pole reversals are varied. There are geologic periods where multiple reversals have occurred and periods of no activity. In the last 3.6 million years, there have been at least nine reversals, the last occurring 730,000 years ago.
Yes, in the history of Earth, it has happened a handful of times. When it switches we experience what we call a pole reversal. Right now Earth is currently in the process of a pole reversal (the South Pole is moving northwards).
The sun's pole reversal is tied to the sunspot cycle.
The sun's pole reversal is tied to the sunspot cycle.
System of orbits
System of orbits
pole reversals seafloor spreading
System of orbits
pole reversals
The sun
the sun
The sun
some horses will have to be tied to more than one pole, e.g. 6 to first pole, plus 1 tied to first and second, 6 tied to second pole, plus 1 tied to second and third, 6 tied to third pole, plus 1 tied to third and forth, 6 tied to forth pole, plus 1 tied to forth and fifth, 6 tied to fifth pole, plus 1 tied to fifth and sixth, 6 tied to sixth pole, plus 9 tied to the last pole =50.
The north pole becomes the south pole and vice versa. Also any rocks cooling in the reversed field will trap the magnetic polarity prevalent at their time of cooling. This means we can can trace the history of past magnetic reversals.