Stunning! Scientists say the Earth’s rotation is getting faster in 2020, what is the impact on humans? – All Pages

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Understanding Earth’s Rotation and Its Impact

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GridHot.ID – Remember the school lesson about rotation earth?

Citing Wikipedia pages, rotation earth refers to the rotating motion of a planet Earth on the axis.

As a result of the movement on its axis, each district in Earth experience day and night.

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Although the length of day and night can vary in different places.

However, apparently, recently scientists discovered surprising things about the rotation of the earth. What’s wrong?

Quoted GridHot from Kontan.co.id, scientists made a surprising discovery. In 2020, scientists discovered that Planet Earth is moving faster. Even in 2020, Earth set a record for the fastest rotation in the last 50 years.

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This can be seen from the fact that it was found that the 28 shortest days all occurred in 2020.

So far, scientists have defined the time of one day as 86,400 seconds or the equivalent of 24 hours, the time it takes the Earth to rotate once.

Although in its history, the Earth did not rotate perfectly and uniformly as it was at that time.

The Earth’s rotation actually slowed so that the average day length increased by about 1.8 milliseconds per century.

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With these calculations, scientists concluded that about 600 million years ago, the Earth took only 21 hours to make one rotation. This means that a day on Earth is only 21 hours.

Launching Science Focus, Wednesday (2/6/2021), variations in day length are caused by several factors, including tidal effects of the Moon and Sun, core-mantle coupling within Earth, and the overall mass distribution on the planet.

Then, seismic activity, glaciation, weather, oceans, and the Earth’s magnetic field can also affect the length of the day.

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But in 2020, scientists get the Earth spinning faster.

Until now, scientists weren’t entirely sure what caused this increase in Earth’s rotational rate, but some have suggested it could be due to melting glaciers during the 20th century, or the accumulation of large amounts of water in northern hemisphere reservoirs.

However, experts predict that this accelerated rotation of the Earth is only temporary and the Earth will begin to slow down again in the future.

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But, for now, should we worry? While it won’t have an effect on our daily lives, it could have serious implications for technologies such as GPS satellites, smartphones, computers, and communication networks, all of which rely on highly accurate time systems.

But such problems can eventually be solved, perhaps by simply subtracting one leap second instead of adding one.

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So no, we don’t have to worry, unless the shortening of the day is caused by human activity.

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