Birdwatch Note Rating
2023-01-27 06:47:25 UTC - NOT_HELPFUL
Rated by Participant: D7B083F60EF42A3C134591D56F839A52E96B549AE8C21D267385BFA8112F571F
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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.nature.com/articles/s41561-022-01112-z https://www.washingtonpost.com/science/2023/01/23/earth-core-slowing/
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