Earth's inner core may have started spinning other way

Yappi

Go Buckeyes
The study's authors, Xiaodong Song and Yi Yang of China's Peking University, said they found that the inner core's rotation "came to near halt around 2009 and then turned in an opposite direction".

"We believe the inner core rotates, relative to the Earth's surface, back and forth, like a swing," they told AFP.

"One cycle of the swing is about seven decades", meaning it changes direction roughly every 35 years, they added.

They said it previously changed direction in the early 1970s, and predicted the next about-face would be in the mid-2040s.
 

EagleGuy

Well-known member
At the same time, the Earth itself started rotating the opposite direction, throwing the residents of Guam into a tither.
 
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