Birdwatch Note Rating
2023-01-24 11:07:36 UTC - NOT_HELPFUL
Rated by Participant: A60FF67389B532582E048A8E8AC655213D1855A80D83C04156C65D0DEDF815F1
Participant Details
Original Note:
The inner core rotates in the same direction as the rest of Earth, but cycles between going slightly faster or slower (<1° difference/yr) every ~35 years. This natural cycle is only known through precise geophysical study; it does not cause noticeable changes at the surface. https://www.washingtonpost.com/science/2023/01/23/earth-core-slowing/ https://www.nature.com/articles/s41561-022-01112-z
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