GeoGeoGeoGeo t1_j5somzg wrote
Reply to comment by seamus1982 in Earth's inner core seems to be slowing its spin according to new research published in Nature Geoscience. The study authors suggest this might be part of an approximately 70-year cycle where the core speeds up and slows down relative to the rest of the planet. by shiruken
None, and these findings are quite speculative. The following article discusses why: https://news.yahoo.com/earths-inner-core-may-started-161117849.html?soc_src=social-sh&soc_trk=tw&tsrc=twtr
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