Earth's core slows down rotation and reverses direction, effects of this phenomenal change on the planet

Deestan, 13 days ago

Vague and does not cite sources meaningfully. The words that appear to link to sources, just link to other articles on the site.

einkorn, 13 days ago

Isn’t it a long-standing theory that at some point the whole magnetic field of earth might flip polarity, just like the sun’s does?

tal, 13 days ago

It’s happened before.

en.wikipedia.org/wiki/Geomagnetic_reversal

The Earth’s magnetic field has alternated between periods of normal polarity, in which the predominant direction of the field was the same as the present direction, and reverse polarity, in which it was the opposite. These periods are called chrons.

Reversal occurrences are statistically random. There have been at least 183 reversals over the last 83 million years (on average once every ~450,000 years).