The earth has been changing so fast that there are less than 24 hours in a day

Time is equal for everyone. There are 24 hours a day for anyone.​

For a long time, both statements were incredibly true. However, as the accuracy of scientific measurements improved, especially in understanding the basic conditions of the Earth, scientists began to see that the rotation rate of the Earth was not constant, but had been changing since its birth.

When the Earth was born 4.5 billion years ago, it only took six hours to make one rotation. Then, as the moon's gravity slowed the Earth's rotation, the days began to get longer and longer, from six hours to eight hours to ten hours, until today's 23 hours, 56 minutes and four seconds.

Inferred from the common sense, as the earth's affected by the moon's gravity continues, rocket away the earth's rotation and human energy, earth's rotation is in the future will be more and more long, that is to say, the time of day will increase gradually from 24 hours to 25 hours or more, in extreme cases as long as the time is long enough, will be the sun, the earth gravity tidal locking, So that one side completely becomes day, the other completely becomes night 39bet-đua chó-game giải trí -đá gà-đá gà trực tuyến-đánh bài.

However, when everyone thinks that the earth's rotation speed will only get slower and slower, so the time of the day will only get longer and longer, the scientists in charge of time on earth tell us by using a cesium atomic clock that the earth's rotation speed will suddenly accelerate, and the day will already be less than 24 hours, or even less.

Of course, the magnitude of this transition is very, very small, on the order of milliseconds. For example, July 19, 2020, is the shortest day in recent memory, because the Earth completed its rotation 1.4602 millimeters earlier on this day.

574f6c412c58cd23de61eba5b74964d8Variations in the rotation of this level really affected part of the equipment, the orbit of the satellite and the ground time synchronization happens do not match, but because they have active correction systems system, so we are on the ground of vehicle navigation will not be affected, daily life will not be affected.

But what would happen if the Earth's rotation continued to accelerate, even at a rate that could be felt by humans? What would happen to human life?

According to scientists, the acceleration of the Earth's rotation will cause gravity, or "centripetal force," to weaken. Everything on Earth will become prone to floating, and the average person will be able to rise several meters in a single leap.

In addition to humans, the Earth's oceans will also become very active due to the rotation of the Earth. In the case of tidal fluctuations imposed by the moon's gravity, the overactive Earth's oceans will lead to frequent tsunamis, which will become very dangerous near the coastlines of every continent, and the living space of human civilization will be compressed to the inland areas.

According to the supercomputer simulation, if the Earth spins 20 times faster than the Earth, the "centrifugal force" generated by the high rotation speed will scatter the materials that make up the earth, spreading the earth into space like a pepper, and human civilization will disappear.

Do not think that these terrible scenes are imaginary, because astronomy has indeed found this kind of celestial object in the universe rotates hundreds of times per second, the equatorial speed is close to 50% of the speed of light, it is a pulsar.

These subjects, which are tiny but dense enough to be billions of tons per cubic centimeter, are the eternal beacons of the universe. Born when the core regions of intermediate-mass stars collapse in their later years, they are the densest objects in the universe except for black holes and quark stars, which is why they spin so fast.

At super fast speeds, the peaks of pulsars can only grow up to a millimeter high, and then crumble under their own gravity, flattening them back down.

On the whole

Now, 4.5 billion years after the birth of the Earth and the stability of the solar system, the rotation rate of the Earth itself will not change much, and humans will continue to keep a 24-hour schedule without the impact of a large asteroid.

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