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The Earth was formed about 4.5 billion years ago, and from the day it was formed, the Earth began to rotate and revolutionize. Until now, the earth has been turning. So, what is the power source for the rotation of the earth? Will the Earth stop turning in the future? Is the earth a perpetual motion machine?
To understand why the Earth is able to keep turning, we need to go back to the origin of the Earth and the entire solar system. The original solar system had no sun, no planets and no moons, only clouds of dust and gas floating in space. In the vicinity of the Solar Nebula, a massive star underwent a supernova explosion, and the shock wave it released caused the center of the nebula to collapse into the Sun.
During the formation of the Sun, its gravitational pull continuously absorbs the nebula, causing the nebula to turn faster and flatter and become more and more flattened. Eventually, most of the nebulae came together to form the Sun. The remaining nebulae continue to revolve around the Sun, forming a protoplanetary disk.
In the protoplanetary disk, dust and gas collide to form microplanets, which in turn gather under the action of gravity to form major celestial bodies, including the Earth.
According to the conservation of angular momentum, after the matter in the protoplanetary disk forms the earth, the earth will inherit the original angular momentum, so the earth will rotate and revolution. The Earth will not rotate unless the collision of matter completely cancels out the angular momentum of rotation at the time of its formation. But this is almost impossible to happen because with just some perturbations, the Earth's angular momentum of rotation will not be 0.
Because of this, all celestial bodies in the universe have a rotation. As for those tidally locked objects, such as the Moon, it does not mean that those objects do not rotate, but that their rotation and revolution are synchronized. In the same way, the earth will revolve, otherwise it would have fallen into the sun.
After the formation of the major bodies of the solar system, most of the primordial nebulae have been consumed. In the open space, the Earth's rotation and revolution are not affected by resistance, and the Earth's angular momentum is not consumed, so the Earth can continue to rotate for billions of years without stopping, and will continue to rotate in the future.
However, this does not mean that the earth is a perpetual motion machine. The first and second laws of thermodynamics have shown that perpetual motion machines cannot be manufactured. Although the earth has been rotating, the earth has not done work externally, so the earth is not a perpetual motion machine.
In addition, although there is no drag in space, the tidal forces of the Moon will make the Earth's rotation slower and slower. Currently, the Earth's rotation period is 4 times that of 4.5 billion years ago. In another 10 billion years, the Earth's rotation period will increase to 47 times the current one.
After that, the Earth is tidally locked and its rotation speed no longer slows down.
As long as the sun does not destroy the earth in the future, the rotation of the earth will not stop. But according to the general theory of relativity, the Earth's interaction with the Sun continuously radiates gravitational waves. Over a long period of time, the Earth's angular momentum is gradually dissipated, causing the Earth to eventually collide with the Sun, which has long since become a black dwarf.
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The power of the earth's rotation comes from the universe. At the time of the formation of the solar system, due to the large size of the universe, dust and gas had kinetic energy. According to the conservation of energy, the earth inherited these energies in the process of formation.
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Angular momentum, the earth will revolve and rotate, all the planets will rotate, the sun absorbs the angular momentum produced by nearby cloud maps or planets, making the earth revolve around the sun.
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is angular momentum. Angular momentum is also the energy that the solar system has since its formation.
The solar system started out as a cloud of gas with angular momentum. After the planet travels, it inherits this angular momentum because of the conservation of energy, which is why all planets revolve around the sun in the same direction.
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The Earth was formed about 4.5 billion years ago. From the day it was formed, the earth began to rotate and rotate. Until now, the earth is still spinning. So, what is the driving force behind the Earth's rotation? Will the earth stop rotating in the future? Is the earth a perpetual motion machine?
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"Tianxingjian", the earth and all other celestial bodies seem to be running day and night.
The earth's rotation around the sun is a day (year), which is called rotation, so it has four seasons of the year; The Earth makes one revolution around its axis of rotation for one day (23:56:4 seconds), so it has day and night; The Earth's rotation is from east to west, so it has the sun rising in the east and setting in the west.
The Earth's rotation 4 billion light-years ago was 6 hours, and after a spark-sized planet collided, the rate slowly weakened, producing today's about 24 hours, and the fragments of that planet's collision with the Earth gave rise to the current Moon nearly 100 million light-years later. Naturally, the moon also has a rotation.
Therefore, some people ask: where does the rotation drive of celestial bodies such as the Earth come from? Why do you keep turning?
The scientific study of this issue after the occurrence of civilized behavior has been carried out from the 17th century to the present: for example, angular momentum, solar propulsion, gravity, tidal forces of the moon, dark energy, etc
Angular momentum is conserved. The conservation of angular momentum is a formula calculated by Kepler's "Kepler's Law" clearly proposed by Kepler in 1609 to express the regularity of the movement of celestial bodies such as the Earth, which is caused by the initial star orbit of the solar system. Under this initial force, the stars will rotate at the beginning, and the relationship is:
l=m·δt;
Solar gravitational traction belt. The mass of the sun is that of the whole solar system, and its great mass of course produces a great gravitational pull, which is the gravitational attraction discovered by Copernicus in 1687, which causes the earth and other stars to orbit the sun. The earth suffers from the danger of rotation, and gradually begins to rotate.
But this should be primarily due to the rotation of the Earth;
Earth's gravity is not the same. The Earth is not a positive sphere, but an ellipsoid, and there is an error of 23 in its axis of rotation and the angle of view of the ecliptic plane of rotation, which makes its gravity different, so the gravity is biased to one side, so it produces rotation;
Multiple forces such as dark energy and the gravitational pull of the sun. The dark energy in the universe accounts for 69% of the quality of the universe, it is all over the universe, and it has always been a fitness exercise, and all the celestial bodies in the universe are suffering from its invisible interaction force. The Earth is propelled to rotate under a variety of interacting forces, such as dark energy and the gravitational pull of the sun.
The reason for the rotation of the earth is all physical conjecture, and everything in the universe is in constant motion, and each star or celestial body will be subjected to various forces in the universe, and each star has a different rotation or rotation in order to better balance.
Long-term observation by the National University Laboratory of the United Kingdom has found that the Earth's rotation rate has gradually accelerated since 1999, and the fundamental reason for the faster rate of the Earth is the spacecraft sent by people, because the spacecraft all use the Earth's rotation.
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We all know that the power of the earth's revolution is the gravitational force of the sun, and the power of rotation may come from the magnetic force of its own magnetic field at the north and south poles.
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There is no power, because this is the inertia of the earth, so the earth will rotate and the moon will rotate, which is a very simple natural phenomenon.
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The power source of the Earth's constant rotation is not only the kinetic energy of the Earth's original material, but also the gravitational pull of the Sun.
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Generally speaking, it is the Earth's axis, but the Earth's axis is not real.
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The main reason is that there will be a certain gravitational force in the Milky Way, which will cause the earth to not only be autobiographical, but also orbital, because there is gravity, so it does not stop.
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From the universe. Because all the planets in the universe are rotating, the earth will rotate, and the universe is very mysterious.
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The earth is not a perpetual motion machine. On the one hand, the rotation of the Earth is influenced by the gravitational pull of the Sun, and on the other hand, it is converted into kinetic energy by various material potential energies acquired at the beginning of the formation of the Earth. Under these two main factors, the Earth has been rotating for billions of years.
But there will come a time when the Sun's gravitational pull is not strong enough to affect the Earth, or the Earth experiences a moment that is sufficient to reduce its angular momentum. In any case, the rotation of the earth still follows the laws of thermodynamics, so the earth is not a perpetual motion machine.
<> it turns out that no matter what object is moving, there must be pressure, and the rotation of the earth is no exception. The first galaxies in the universe started with a big **. Experts from all over the world have found that the Earth's rotation is slowing down compared to previous phenomena.
Although the rate of slowing down is very slow, many people still worry that the Earth will one day stop spinning. Because when the rotation stops, half of the Earth is exposed to sunlight all day long, while the other half has no life without sunlight, which has a big impact on people.
The Earth's rotation slows down, mainly because the Sun tidally locks on the Earth. The gravitational pull of the sun on the earth, while pushing the earth to rotate, also creates a blocking force on the earth, a phenomenon known as tidal locking. If the sun is tidally locked on the earth, the earth will no longer have the power to rotate and the rotation of the earth will stop.
But because the Earth is so far from the Sun, the tidal locking is very weak, and it takes trillions of years for the Earth to stop spinning completely.
There are also many people who worry that tiny particles in the universe will create resistance to the rotation of the earth. As we all know, the universe is a vacuum, friction is almost zero, and the influence of tiny particles on the rotation of the earth weakens very slowly. After the formation of the Earth, the Earth was surrounded by asteroids and meteorites.
When the two interact, a meteorite or asteroid collides with the Earth. The collision between the two also promotes the rotation of the earth as kinetic energy is part of the energy used in the rotation of the earth.
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The power comes from the ability of the earth itself to move, but also from the ability of the earth to rotate, from the attraction of the universe to the earth, and from the mutual attraction between the earth and other planets.
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From space, because there is a very strong attraction in space, and through these attractions the earth will keep turning.
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Gravitational attraction, the earth is subject to the gravitational pull of the sun, so it will rotate around the sun.
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It is caused by the activities of biological life on the earth. Animals and plants all yearn for light, life activities have been chasing the sun, and the power of life has not changed for hundreds of millions of years, which is the driving force behind the earth's natural pursuit of rotation. The earth has been rotating for 4.5 billion years, and its power comes from the sun, if the sun is the center of the solar system, the earth will not rotate, and the earth will become a wanderer to the universe.
The earth is not a perpetual motion machine. The power of the planet's rotation comes from the conservation of angular momentum when the planet was formed, because there is almost no resistance to slow it down, so it can rotate all the time, in fact its rotation has been slowing down, but the change is very small.
First of all, it is wrong to measure the earth by weight, in the universe there is only the gravitational force between the planets and the mass of the planet itself, if we say weight, then there is a direction of force, and the target to which this direction refers has a gravitational source. I wonder how the "weight" of the earth is calculated?
The earth is like a powerful magnetic field, which rotates automatically, and without a magnetic field, it will disintegrate and disappear, and all matter will be formed, lived, and destroyed, even the universe will disappear, which is the law of nature.
The rotation of the earth has nothing to do with weight, the so-called 600 billion billion kg of the earth is measured under the existing gravitational datum of the earth itself, and the rotation of the earth is related to the large universe and the later collision of the planets: the gravitational moment, the impact moment and so on under the action of the angular momentum, so the earth began to rotate, and in the process of the earth's self-condensation stroke, it will also rotate due to the imbalance of angular momentum.
From the alternation of hot and cold between planets with magnetic fields. The gravitational pull of an alien planetary system on it. The power comes from the heat of the sun, one cold and one hot, which drives every planet on the earth that revolves around the sun. The rotational dynamics should come from the mutual gravitational pull between the celestial bodies.
If there is a life, his life is a few picoseconds. The bits of dust that we inadvertently raise when we sweep the floor make up its universe. He is tiny, so the dust where he is is his earth.
His life was extremely short, so he felt the movement of dust almost non-existently throughout his life. When the dust fell, his universe was compressed into a plane.
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It's the gravitational pull from the planets, so the earth will be very good, and the earth will have a high gravitational force, and the power will be very sufficient.
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It's an unknown secret, and scientists haven't explained it, and the Earth's power is relatively sufficient, and it's been working non-stop.
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It should be due to the gravitational pull between the celestial bodies, as well as the force between the sun and the planets. And this force is eternal.
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Because there is no air resistance in space, and the earth is bound by the attraction of the sun, it will continue to move along its original trajectory.
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The power of the earth is the sun, and like other celestial bodies in the solar system, it is locked by the huge gravitational pull of the sun. How far the Earth has traveled since its birth is a difficult data to calculate.
The reversal of the earth must be the reversal of the entire galaxy, the gravity on the earth disappears instantly, the centripetal force will be transformed into centrifugal force, then all the creatures on the earth will fly out of the earth at high speed, this is a devastating blow, of course, this phenomenon is impossible to produce, even if human beings have the ability to destroy the moon, in the end it can only bring a devastating blow to the earth's creatures, the entire galaxy will not cease to exist because of the loss of the moon, nor will the earth be reversed because of the destruction of the moon, At the same time as the destruction of the moon, another moon substitute will definitely be produced, what is even more ridiculous is that scientists have studied when the sun will "die", in a vain attempt to study the artificial sun, if the sun is "really dead", will the earth still exist, everything will be solved by nature, and the study of the laws of nature is the real science--- the conjecture of the fallen immortals.
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