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What can change the length of days on Earth?
According to researchers, small changes in the Earth's core affect the planet's rotation.
On Earth, the day-night cycle is clearly defined, because each day ends 24 hours before the next one begins. Therefore, this is a kind of standard by which people live, observing the clockwork, writes science alert.
At the same time, the planet itself is not so accurate, because its rotation does not strictly adhere to a 24-hour time interval.
“Many fluctuations in the length of the Earth's day have known causes. But on scales of decades to millennia, scientists have noticed minor fluctuations in the length of the day, which are a little more difficult to determine,” they say in the material.
Thus…
