The rotation of the Earth’s inner core slows down

The rotation of Earth’s inner core began slowing down more than a decade ago, changing the length of our days by fractions of a second.

Researchers from the University of Southern California (USC) have created designs for Movement of the inner nucleus Using seismic data recorded from various Earthquakes and nuclear tests, both of which send vibrations through the planet. By measuring the speed and interaction of seismic waves within the Earth’s layers, researchers can estimate the location and movement of the inner core.

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