Recent observations revealed one of the shortest days in recorded history occurred on July 9, at 1.3 milliseconds shorter than the average. Scientists forecast that subsequent days will be even shorter due to the moon's position, predicting reductions of 1.38 and 1.51 milliseconds on July 22 and August 5, respectively. This phenomenon is influenced by tidal dynamics and ongoing changes in Earth's rotation, which has unexpectedly accelerated in recent years, despite a historical trend of slowing down over centuries.
On July 9, the world experienced one of the shortest days in recorded history, at 1.3 milliseconds shorter than the average day.
Scientists predict that July 22 and August 5 will be even shorter than July 9, at 1.38 and 1.51 milliseconds shorter than average.
While scientists have suggested multiple theories from changes in the atmosphere to the weakening magnetic field, the exact reason for the acceleration remains a mystery.
On average, the Earth is actually slowing down by about two milliseconds per century, largely due to the pull of the moon in a process called tidal braking.
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