6 trillion billion tons of Earth, non-stop rotation for 4.5 billion years, where does the power come from

The Earth rotates in two ways, one is rotation and the other is revolution. The Earth rotates for one week, which is what we feel is the alternation of day and night. And the Earth rotates for one week, which is the year of alternating spring, summer, autumn, and winter.

From the moment the Earth is born, it will never stop rotating until the end of life, and the rotation of the Earth is one of the necessary conditions for the birth of life on Earth.

Research evidence shows that due to the friction of the Earth's rotation, the liquid core and mantle form the Earth's magnetic field. The presence of this magnetic field blocked most cosmic rays and solar storms for humans, allowing early fragile life to evolve into everything that emerged on Earth in a safe environment.

It is estimated that the Earth weighs 6 trillion tons and rotates at a speed of about 466 m/s (near the equator), which means that this speed is equivalent to Mach 1.37. Currently, this speed can only be reached by fighter jets, and fighter jets that want to reach this speed need to consume a lot of fuel to support their flight.

And the Earth, which weighs 6 trillion tons, has been rotating non-stop for 4.5 billion years. So what kind of energy is supporting the earth, so that it has continued to rotate for so long?

The original power of the Earth comes from the great collision between heaven and earth. 4.5 billion years ago, when the solar system was just formed, countless cosmic dust converged into tiny meteorites, which collided and fused to become an asteroid, and then the asteroids collided and fused to form the original planets of the solar system. At that time, the earth was just a humble one.

The process of solar system formation, like some scenes in mini-games, often starts with the most striking one small. The more you eat, the bigger you get and become the dominant player in the game. Whether those mini-games draw on the process of solar system formation or not, there are scenes of solar system formation in those mini-games.

It was in these impacts that the primitive energy of the early Earth was formed, but the speed of the Earth's rotation was related to another big event.

The famous big event was the violent impact of a planet called Theia on Earth. That impact not only caused Theia to merge with Earth to become a larger planet but also created a byproduct, the moon. During that impact, debris was scattered everywhere, and the largest of them slowly gathered the debris around it and became the moon that people can see today.

That impact gave the Earth a huge amount of energy and accelerated its rotation.

In other words, the main source of energy for the Earth's rotation is the early impact, but the reason why it is still rotating now is caused by inertia. This process is like the process of playing with a gyroscope. The gyroscope can stop quickly because of the presence of air resistance and the Earth is in a near vacuum, so it can keep spinning for so long.

And it will continue to spin for a long time to come, so will the Earth keep spinning forever?

The answer is no because the so-called vacuum environment is not an absolute vacuum. In the universe, there are nebulae. These nebulae are scattered with a large number of atoms, with a density of about 0.26 atoms/cm3. Although the number of atoms is scarce, the atoms in the entire volume of the Earth are negligible for a 6 trillion-ton Earth. But it is undeniable that they form a weak resistance, though insignificant.

With the addition of time, there is also a certain impact on the Earth, and this impact is negligible on the human time scale because the time of day has changed little since the birth of man.

But if there is a star behemoth whose time is 100 million years, looking down on the Earth, it is like humans observing a gyroscope.

The Earth experiences a single impact, a few hours a day, and rotates arguably very fast. Even 500 million years ago, there were only 21 hours in a day on Earth. A few hundred million years later, the Earth is 3 hours slower.

That is, there is a weak frictional force and the Earth as a whole tends to slow down, but it will take a very long time to slow the Earth down. As long as humans are living on Earth, humans will not see it.