Did you know that the moon is moving away from the earth?

What you may not know is that the Moon is actually moving away from Earth, billions of years ago, when it was much closer than it is now. This phenomenon is because when Lao Mei landed on the moon in the 60s, a set of mirrors were placed on the moon, so that if you shoot a laser from the earth, you can reflect back from this mirror, and you can calculate the distance between the earth and the moon through the time difference. <>

This measurement shows that the Moon is actually moving away from the Earth at a rate of about three centimeters per year, why is that? It's because the universe is expanding. Hey, no, the reason behind this is tidal forces.

We know that the gravitational pull of the moon is everywhere on the earth, and the gravitational pull on the side near the moon is stronger, and the gravitational pull on the side away from the moon is weaker.

So in fact, the whole earth has a tendency to be stretched under the action of the moon, which also leads to a more obvious tidal phenomenon on the earth, so this gravitational difference is called tidal force t Luofu, that is, the moon feels the gravitational pull of the earth, and the overall effect should be to point to the place where the earth is raised. It should be noted here that the cycle of the Moon's revolution around the Earth is about a month. <>

That is to say, in the view of the moon, the earth is still spinning quite fast, that is, facing the protrusion of the moon that is pulled by the moon's gravity, this position has always been. Because the earth rotates so fast, this protrusion is not always aimed at the moon, but has an eccentricity. In this way, the gravitational pull of the moon feels the earth is not completely directed at the earth's stars, but is a little biased, and it doesn't matter.

As a result, the gravitational pull on the moon is not just a mirror force, but a small tangential force, and this tendency force will accelerate the rotation of the moon, and after the moon accelerates its orbital radius, it will gradually move away from the earth, but the moon will get farther and farther away until it leaves completely. Well, no, the Moon only faces the Earth because the tidal force of the Earth on the Moon makes the Moon tidal locked. <>

But in turn, the moon also has a tidal lock effect on the earth, but the earth is much larger than the moon, so the earth has not been completely locked until now. You must know that the earth was only about fourteen hours a day billions of years ago, until one day the earth was completely locked by the moon. In this way, the gravitational pull of the earth will not be eccentric, and it will always face the moon, so that the tangential force will not be lost, and the moon will not be accelerated, and it will not be far away.

There is still a long way to go, about 10 billion.

The moon is a satellite of the Earth and is slowly breaking away from the grip of the Earth's gravity. The universe is slowly expanding, many planets are gradually moving away from us, and with the current level of human technology, we cannot stop the moon from moving away.

In fact, everything in the universe is moving, so it is normal for the moon to move, but the recent trend is that it is getting farther and farther away from the earth, but this is a normal phenomenon, and there should be no need to worry.

I do know that the impact of this event on the planet is also very large.

Introduction: The moon is a satellite of the earth, and it is also familiar to many people, people know that the moon will revolve around the earth, and in this process can also reflect the corresponding changes, the moon will revolve around the earth, why does it appear?

The moon revolves around the Earth, or because of gravity. In fact, gravitational force exists in daily life, but because the mass between people and people is too small, the gravitational force is not strong, and it can be said that it is minimal. Any two objects with mass will have a gravitational force, and the gravitational force decreases as the distance increases and increases as the mass increases.

The Earth and the Moon are two planets, so the mass is very large, and in this case, the gravitational attraction between the two planets is relatively strong. Gravitation provides an effect, so that the Moon will rotate in a given orbit under the influence of gravity. In the process of rotation, a certain balance is maintained, so as to avoid the moon escaping, and it will not attract too close, so as to ensure a balance.

And it also has a gravitational pull on the moon like other apocalypsees in the solar system, but because of the distance, the force is relatively weak, and it does not attract the moon away, so the moon becomes a satellite of the earth.

In fact, the knowledge in books is also very useful in real life, and the knowledge in books can solve many scientific phenomena, if you can study it seriously in daily life. And by understanding the origin of this knowledge and the process of research and development, you will be able to better understand the thinking and thinking methods of those scientists, and you will be able to help your own understanding. In this process, I can better understand the relevant principles and apply these principles in my daily life, so as to help my own development.

Moreover, it can be used flexibly, so that it can better use previous knowledge to innovate.

The moon revolves around the earth because of gravity, and the pie-in-the-sky moon keeps moving around the earth because of the strong mass between them, which leads to an interactive gravitational pull. Because the mass difference between the Moon and the Earth is not particularly far, the center of mass of the Moon revolving around the Earth does not coincide with the Earth's geocentric, but deviates slightly from the geocentric.

Because there is an interaction between the moon and the earth, and there is a mutual attraction, there is also a corresponding orbit, so it will rotate around the earth.

Because of gravity, gravity exists in life, so there is such a phenomenon.

The moon is now moving farther and farther away from the Earth at a rate of 3-4 centimeters per year.

I heard that 3 billion light-years ago, the Moon was only half as far apart from the Earth as it is today! It is not difficult to see that the activity of the moon pushing away from the earth has long since faded for billions of years.

However, there is no need to worry that if the uniform rotation rate of the earth slows down to the same speed as the rotation speed of the moon around the earth, at this time, the spread of tidal floods over the deep sea will subside, and the factor that promotes the slow self-change of the earth will disappear, and the distance between the moon and the earth will no longer be easy to increase. Therefore, you don't have to worry about the moon escaping from the palm of the earth's hand, it will always accompany the earth, drawing its own little circle around the earth.

That is the last definition of the idea that the Sun could swell into a red giant 5 billion light-years from now, when the Sun will submerge the Earth and the Moon. It is thought that the Milky Way is approaching the orbit of the Andromeda Galaxy. The Milky Way is gradually getting closer to the Andromeda Galaxy, with a rate of about 400,000 kilometers per hour.

This means that in 50 to 6 billion light-years the galaxy will be dead. Transfiguration with the Andromeda Galaxy. That is, my solar system also needs to be digested and absorbed by the fairy system.

It has been established since birth that there are only 24 hours in a day, but why is there only 24 hours in a day? Wouldn't 25 hours, 26 hours, or even 27 hours? It's like the "100,000 whys" that a child asks his mother in a small guess sock?

Although people may not be able to answer it in ancient times, but now intelligent technology has already been very fast, such a simple problem, scientific research will tell you.

In fact, at this stage, people commonly use the form of time calculation divided into the lunar calendar and the Gregorian calendar, the Gregorian calendar refers to the earth around the sun and its own uniform rotation, caused by the time period to estimate, and the lunar calendar refers to the moon rotating around the earth at a uniform speed of time. If you take the earth, the moon and the sun as a relationship, you must love the sun for ten minutes, so it will always run through him, and the moon is like a silent guardian, always guarding the earth, and seeing it from afar.

In fact, it has always been the moon that actively moves away from the earth, because the earth judge has been rotating around the sun, and the huge gravitational pull of the sun has attracted the earth celery ball, while the moon has gradually moved away.

I think that the potato crack should be because the earth is actively moving away from the moon, otherwise the moon beam with an oak smile in his hand would not be so active around the earth, and the moon would not be so active, so the earth must take the initiative to stay away from the moon.

The Moon is moving away from the Earth, and this movement has been going on for a long time, and the slowdown of the Earth's rotation affects the tides.

It is the Moon that orbits the Earth, and then the Moon moves away from the Earth, and they are generally in their respective orbits as they move.

The moon is moving away from the Earth. The two rely on gravity to attract each other, and when gravity slowly weakens, they will move away.

There is a possibility that the Moon will be detached from the Earth's gravity in the future, and the Earth's gravity alone will not be enough to capture moon-sized satellites, and the Moon may well be a remnant of the Earth's impact.

With the movement of the Moon, it is possible that the future will break free from the gravitational pull of the Earth.

There will be such a possibility.

Because the Moon also has an orbit. Perhaps after thousands of years, we have all moved away from Earth to live on other planets.

It is impossible, because each planet has a fixed pattern and trajectory, so it will not depart from the earth, and will always run in its own orbit, and the speed will be faster and faster.

It is impossible to break away from the earth, because once it is separated from the earth, then the moon may shift, and it may cause planetary impacts, which will cause very serious harm.

Very early existing trends may be, because every year the moon is moving away from the Earth. Knowing that it is out of the gravitational range of the Earth, we will never see the moon again.

I don't think it will be possible for the moon to break away from the earth in the future, because the two are one.

The Moon is moving away from the Earth, and the formation of strange lunar moons is due to the presence of liquid water, a special substance on the surface of the Earth, which causes the Moon to move farther and farther away from the Earth.

In fact, the Earth was formed 4.5 billion years ago, and previous studies have shown that the Moon appeared only a little later than the Earth.

For the past three decades, the common explanation of the Moon's origins by scientists has been that the Moon was formed by the collision of two protoplanets, one of which was the newborn Earth.

The other is a Mars-sized rock called Tia, and the Moon was formed by the merger of debris from that collision.

Next, scientists plan to compare these impacts to those on the surface of the moon, hoping to provide clues to the evolution of the asteroid belt.

According to human scientific research, as early as 2.5 billion years ago, the moon was very close to the earth. The Moon, as a satellite of the Earth, will deviate over a long period of time.

The Moon is only smaller than the Earth, its diameter is 3476 km, which is a quarter of the Earth's size, and its volume is 1 49 of the Earth's, so the real situation is that the Moon is not small. So why does almost all of the moon feel like they can see the edge at close range? The reason for the small lander and the low framing height of the camera is that ants on the earth think that the earth is also very small, but they will never reach the end when they climb high and low.

However, both the Jade Rabbit rover and the Chang'e lunar lander are very limited in height, so the ** lunar horizon they photographed seems to be very close. Because it fell in the impact crater, the camera shot from a low place to a high place, so it was directly lined up to the mouth of the pit, and of course it looked like it was on the edge.

The depth of field is too small, and the field of view is very narrow, as if it was photographed on an asteroid with a diameter of several tens of meters. I've always wondered how this works, it doesn't make sense. Although the moon is much smaller than the earth, it is not so small to look ahead.

You know, if you stand on the ground and look forward in the plains of the earth, you can see forty or fifty kilometers. You should be able to see more than a dozen kilometers ahead from the moon. But you can only see more than ten meters ahead, which is incredible.

The planet is big, and the signal from the probe may not be true. The United States signals on Mars at 500 million kilometers. It is up to the earthlings to come up with the production **, which can be said to be hypothetical.

The Chinese have a super ability to imitate and put it in front of them.

If the Moon has been naturally close to the Earth, it means that the Earth's moment of inertia has been consumed and transferred by the Earth's tides and the Earth's common moment of inertia, and the Earth's and Moon's rotation is locked with each other. The process of the momentum of the Earth and the Moon rotating each other is consumed by time and space, which is the hypothetical reason why the Earth and the Moon move from farther away to closer, this process must be a process of steady development, and the changes of the earth are certain, but the monstrous waves caused by the tides may not occur.

No, because whether you can see the moon or not has nothing to do with the distance from the earth.

It's not that you won't see the moon, you can still see a small part of the moon, it's just that the moon will get smaller and smaller.

Yes, because if the Moon is far away from the Earth, the thick atmosphere will block the light that hits the Moon, so the Moon will not be visible.

Yes, if the distance between the two is very far, there is no way to see the moon from the earth, but this is generally not possible.