Earth's core rotation reverses direction, effects of this phenomenal change on the planet
economictimes.indiatimes.com
The Earth's inner core has suddenly slowed down and started its rotation along the reverse direction, researchers have found. This raises a few questions on the Earth's rapidly changing dynamics and how this reverse movement of the Earth's core can affect the world.
  • einkorn@discuss.tchncs.deEnglish
    6·
    5 months 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@lemmy.todayEnglish
      8·
      5 months ago

      It’s happened before.

      https://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).

  • Deestan@lemmy.worldEnglish
    5·
    5 months ago

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