The moon only faces the Earth, so what happens if the Earth is locked in by the Sun?

If the Earth is locked by the Sun, then only half of the Earth should have the Sun, and it will be eternal daylight and eternal darkness on the other side.

If the earth is locked by the sun, then in this case, the earth will exist forever day and night, and there will be no alternation of day and night.

Only one side of the Moon is facing the Earth, but if the Earth is locked by the Sun, it will be a situation where one side will be white all day, and then the other side will be dark all day.

It is no coincidence that the fixed side of the moon is always facing the earth, but due to the rotation of the moon and the synchronization of the rotation of the earth, the rotation period of the moon is days, and the rotation period of the earth is also days, so if you look at the moon on the earth, you will always only see one side of the moon.

As the only satellite of the earth, the moon has been a symbol of beauty since ancient times, has been carrying the dream of mankind, there are beautiful records about the moon in ancient times, in ancient China, the moon is imagined to be the place where there is a heavenly palace above, and there are even a lot of mythical stories about the moon, there are jade rabbits who keep pounding medicine, Wu Gang who cut laurel trees, and there is a fairy Chang'e, and the moon is a fairyland in the mouths of many poets, but with the development of modern science and technology, human beings can rely on their own strength to land on the moon, People found that there was no Guanghan Palace on the moon, and there were no dancing fairies, some were just dead silence, and people were surprised to find that the moon was always fixed on the side facing the earth, that is to say, no matter how advanced the means of observation on the earth, it was impossible to see the far side of the moon.

What is on the far side of the moon, the more unknown it is, the easier it is to cause people's fear, many science fiction ** or film directors have created a lot of works about the far side of the moon, some think that there are alien bases on the far side of the moon, and some even think that the back side of the moon hides the German army of World War II, but these rumors have been self-defeating with the entry of humans into the far side of the moon.

The reason why the moon is always facing the earth is because of a special natural phenomenon, that is, the moon is tidally locked by the earth, this phenomenon can also be called synchronous rotation, the tidally locked celestial body rotates for the same time as its companion celestial body orbits for one time, so only one side of the moon will always be seen on the earth.

This is not a coincidence, but an inertia and natural law formed in the replacement and continuous development of the universe, so as to ensure that the moon and the earth coexist and will not be affected by each other, but according to the current trend of scientific and technological development, this phenomenon can not be fully revealed.

In fact, this is not too much of a coincidence, but they form a line of the Earth, the Moon, the Solar System, and they are all in a straight line, and they are all floating in the air.

I don't think it's a coincidence, this phenomenon has a technical term called tidal locking, which refers to the way in which a celestial body orbits another celestial body and gradually locks in with the long-term profit of the other celestial body, facing the other celestial body on one side.

Because Li Yan is tidal locked, it is a common way for a celestial body to rotate and synchronize with its revolution under the gravitational pull of another celestial body. For ease of understanding, a small white dot is marked on the Moon in the direction of the Earth, and this point is always facing the Earth during its orbit around the Earth, which is characteristic of the Moon's revolution under tidal locking.

Information about the tide-locked Moon

Usually at any given time, only the moon will be tidally locked by the larger celestial body around it, but if the physical properties and mass of the two celestial bodies are not very different, each will be tidal locked by the other's tide, as in the case of Pluto and Charon, and this effect is used for the stabilization of some artificial satellites.

The reason why we can't see the back side of the moon on the earth is because the earth and the moon have achieved tidal locking, which is like an attraction between me and you, but the attraction on my front chest is different from the attraction on my back, which will lead to the fact that every day it seems that someone is pulling me, and slowly my rotation and revolution are synchronized, and we can only see the front side of the moon but not the back side of the moon.

This kind of tidal locking is actually more in the celestial bodies of the solar system, for example, between planets and moons, and between other stars and planets outside the solar system, there will be such tidal locking phenomenon, the gravitational pull of the moon will cause two high tides and two low tides on the earth every day, which we call tides.

The Moon is always facing the Earth because of the period of its rotation which is equal to the period of revolution, i.e. the time required for each revolution is exactly equal to the time of rotation. This phenomenon is known as "synchronous rotation", or simply "synchronization". Since the Moon's rotation speed is much slower than its revolution, one of its axes is always pointing towards the Earth and remains relatively stationary in the other directions of the pin base.

This means that we can only see one side of the Moon from the Earth, and the other side is always facing away from the Earth.

Reason: Under the long-term action of the Earth's gravitational pull, the Moon's center of mass is no longer the geometric center, but the side close to the Earth, so the gravitational potential energy of the Moon relative to the Earth becomes minimal.

During the rotation of the Moon around the Earth, the center of mass of the Moon is always facing the side of the Earth, just as the Earth ties the Moon with a rope. The same goes for other moons in the solar system, so it's not accidental that the rotation period of a satellite is equal to that of a satellite, but there are intrinsic factors.

For example, first stretch out your left hand, open your palm, remember a dot in the center of your palm, and slowly draw a circle with any finger of your right hand on the left palm with this point as the center, starting below the middle finger of your left palm.

Because of the phenomenon of tidal locking, only one side of the Moon faces the Earth. At the beginning of the formation of the Moon, the Moon's rotation speed was very fast, which caused them to rotate several times around the Earth in one circle. However, due to the inconsistency of rotation and revolution speed, the moon is constantly deforming in the process of rotation, which will consume the kinetic energy of the moon, causing the moon's rotation speed to become slower and slower, until the moon's rotation speed is consistent with the revolution speed, and then only one side faces the earth.

When the Moon is tidally locked, the Moon faces the Earth in the same way, standing on the Earth, and the far side of the Moon is no longer visible. In fact, not only does the Earth have a tidal force on the Moon, but the Moon can also tidally lock the Earth, and most of the tidal changes we see in the Earth's oceans are caused by the Moon.

Because the Earth is massive and the Moon is small, we know that the gravitational pull is related to the mass of the celestial body, so the gravitational pull of the Moon is smaller, and it takes longer to tidally lock the Earth.

At present, the moon has slowed down the earth's rotation speed, at the beginning of the formation of the earth took 8 hours to rotate the earth, a while ago scientists found that the age of dinosaurs was only one hour a day, and today the earth's rotation speed is 24 hours. If the Earth's history is long enough, it may take a month for the Earth to make one rotation in the future, which means that the Earth is tidally locked by the Moon.