Scientists have noticed that the Earth's spin is accelerating. But why, and what, if any, implications could there be?
That may still be the case over longer lengths of time, i.e., the Earth's rotation may still be generally slowing down.
Scientists note that 2020 had the 28 shortest days since 1960. The shortest day in 2021 was longer than it was in 2020, reversing the trend from the previous year. The Earth rotated in 1.4602 milliseconds less than 24 hours on July 19, 2020, breaking the previous record for the shortest revolution.Increasing speed of Earth's spin could prove problematic for certain technologies.Some have postulated that less weight on the poles results from the melting of the glaciers.Yet others surmise that the movement of Earth's geographic poles across its surface -- known as the "Chandler wobble.
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