the core stopped spinning and might be in the process of changing the spinning direction.
It hides an ancient secret 1996 study in Nature revealed that the travel times of seismic waves that traverse the Earth's inner core show a small but systematic variation over the past three decades.
They Said:
"We hope our study can motivate some researchers to build and test models which treat the whole Earth as an integrated dynamic system,"
adding that so far there is no evidence to suggest that the change in the spinning could affect people living on the surface of the planet.