The universe has no gravity, how does the earth levitate in the air and move regularly? Why wasn t i

Space is a vacuum, and everything has no mass (weight) in a vacuum, so it can float in space. The Earth's rotation is not hindered by frictional forces, so it can rotate forever. The rotation power comes from two sources:

1.Inertial force in large space, 2The Earth's interior is a magma fireball, powered by tumbling.

Although there is no gravity in the universe, there is a gravitational force between each planet, so it can operate very regularly. Because the gravitational pull between each planet and the planet is very large, in order to keep them moving, so that they will not be sucked by the sun.

This is because the earth has gravity, and then it can also be suspended in the air, this is because the volume of the earth is relatively large, and it will also be controlled by gravity, plus the distance from the sun is also relatively far.

That's because the earth has a gravitational force, and secondly, it will have a certain influence when the universe is moving, and there will also be a balanced force, resulting in the earth and other planets are in a fixed motion.

What does levitation mean? In layman's terms, it is floating in the air, and if an object on the earth is not on the ground but floating in the air, then it must be balanced by other forces and gravity. On the earth, due to the gravitational force, there are directions up and down, left and right, and the lower in our consciousness refers to the direction of the center of the earth.

But if you go to the universe, there is really no concept of direction.

The earth is suspended in cosmic space and has no support, why doesn't it fall? If the orientation of the earth in the universe is defined in the same way as the orientation of the earth is defined, then the direction of the sun-earth line pointing to the sun is the "down" of the earth in the universe.

There is no gravity in space, but there is another unique force that we call traction.

Verifying the existence of this power is also very simple. We can do a very simple experiment by turning something in a circle in our hand and then throwing it at a certain point, and you will find that it seems to be thrown much farther than we normally would. This is mainly due to the effect of the so-called traction force, which is what allows our Earth to levitate throughout space and rotate around the sun, which is constantly repelling the Earth.

Of course, there is also the so-called gravitational force in the universe, and it is the existence of this force that will cause the two planets to rotate continuously, otherwise they will always be stationary in one place, and the ecosystem and living conditions on this planet will not change in any way. Then our earth is constantly moving, otherwise we would not be able to have 24 hours a day, day and night.

If our earth also exists in this form, then we will no longer see these things in our daily life, because without gravity, our buildings cannot be built on the ground, and without species, our crops cannot be planted on the ground, and it is the existence of gravity that allows us to enjoy these ordinary pleasures. Therefore, in a certain sense, the reason why we human beings can have such a rapid development of the earth, or the reason why the earth can develop so rapidly, is precisely because of the existence of gravity.

This is because outer space is a vacuum environment and is severely affected, so it can be suspended in the universe because of the balance of forces.

It's because of the attraction. No, because in the universe, all the planets are attracted, and these gravitational pulls make the Earth float in the air.

Because the earth revolves around the sun, there is an attraction between the earth and the sun. That is true.

It is not too accurate to say that the earth is suspended in the universe, it can be said that the holding is a "stalemate", and the earth is not immune to perturbation, but it is affected by gravity, although its trajectory can be changed by people, but it will still follow a specific trajectory after the change. The Earth is affected by itself and other celestial bodies in the universe, forming a stalemate and existing in the universe.

They are affected by the gravitational pull of the sparrow sun and will move on their own, but it is difficult for us to see it with the naked eye, and the socks move them more slowly; It is different from their essence of the same celestial body to rotate, and there is a great gravitational pull, so it will lead to this phenomenon.

This statement is wrong, the ground teaser will also move in space, but it has a predetermined trajectory under the influence of gravity; The reason why it can be suspended forever is because of the law of conservation of energy, and there is a lot of sensitive gravitational force in the universe.

There is no boundary between the universe and the open sky, so there is no center, and there can be a center, but the earth is moving by the gravitational pull of the sun, and the sun is moving by the gravitational pull of the Milky Way.

The earth is floating in the universe and constantly rotating, so everyone knows that the earth is not stationary, but human beings do not feel that the earth is rotating, mainly because human beings are relatively small. If we use the earth as a reference, then human beings are just a very small point in the earth, so they don't feel this movement.

Everyone also knows that the earth rotates, and if the earth does not move, then there will be no difference between night and day in the world, and there will be no division of spring, summer, autumn and winter in a year. But we humans don't feel that the earth is rotating, because human beings are very small, and we have always regarded the earth as a reference system, so the earth is moving, but human beings are relatively stationary, but in fact the earth is always rotating. It's just that because humans are a frame of reference, humans don't feel the earth spinning at this time.

But the earth is moving every day, so we humans are constantly moving.

Therefore, you must go to the Internet to check some relevant information, so that you can understand the principle of the earth's rotation, and you can also understand everything around us, and some people are very interested in these things, so you must pay more attention to these environmental changes in your daily life. The earth is rotating, and the earth revolves around the sun, so these issues are necessary to attract everyone's attention, and you can also check some information on the Internet.

Some people may not feel that they are moving, so they will feel that the earth is stationary. However, the earth is always rotating, so there is a situation of day and night, so I also think that nature is very magical, and we must observe these factors more in our daily life, and we must also understand the knowledge.

Because there is no reference, human beings cannot see the reference object of the earth in the universe, and everything in the earth is rotating with the earth, so it is impossible to feel the rotation of the earth.

This is because the speed of the Earth's rotation is very slow, and the Earth is also very stable, so humans cannot feel the movement of the Earth.

Because the earth and humans are in synchronous motion, relatively stationary, so humans can't feel it.

Yes. Because there are so many planets in space. Each planet has its own trajectory. From a macro point of view, the Earth is also suspended in space.

I don't think there is an absolute direction in the universe. There is no upper or lower. Celestial bodies are distributed in the universe and there is no absolute frame of reference, so the orientation of celestial bodies is relative.

We can think of the earth as below the sun and we can also think of the sun as below the earth. Because there are so many planets in space. Each planet has its own trajectory.

From a macro perspective, the Earth is suspended in space.

Yes, because the entire universe is a force field, and different forces play a role in the universe, so that the earth is in a suspended state in the universe.

First of all, there will be an attractive force between the objects that have mass. On Earth we have a very familiar impression that apples are always falling. Newton's research through his research is that there is gravitational force, which on Earth we call gravity.

The heavier the object, the easier it is to fall, and we know that the Earth is heavy, about billions of billions of kilograms. So what is the force that "drags" the earth from falling?

The direction of the earth: On the earth, we take ourselves as a reference, the head is up, the feet are down, and if a heavy object loses its restraint, then it will fall under its feet. Now that we look at it differently and we all know that the Earth is elliptical and that humans inhabit various parts of this little wrecking ball, we will find that the definition of "up and down" is not so accurate. All the "down" points to the center of the earth, and we are in a relationship with the earth, and we are also in a relationship with the people in the other hemisphere.

Therefore, the choice of frame of reference determines our cognition.

If we say that the sun is used as a reference system, if we say that the sun is used as a reference system, we can also say that the earth and the sun are in a relationship with each other. Then the subject question becomes: why hasn't the earth been pulled by the sun?

High school physics knowledge quickly solves this problem. Imagine that a cannon is mounted on the surface of the earth, and now it is fired one at a time, first at a smaller speed, and the cannon will fall in a semi-parabola. Later, the firing speed increases, and the flight distance of this shell will become farther and farther.

When it reaches a certain velocity, the shell will fly around the Earth and eventually become a satellite of the Earth. This velocity, called the first cosmic velocity, is approximately: kilometers and seconds.

In the same way, the Earth orbits the Sun at high speed, so the Earth does not fall into the Sun. The Earth revolves around the Sun at a speed of about 30 kilometers per second, which is fast enough to save the Earth from falling into the Sun. The Earth's orbital velocity comes from the microasteroids in the protoplanetary disk 4.6 billion years ago, and because of the conservation of angular momentum and the fact that space is almost vacuum, the Earth is able to constantly revolve around the Sun.

The Milky Way Frame of Reference vividly shows the relationship between the Sun and the Milky Way, and the Sun will not fall into the center of the Milky Way, also because the Sun travels rapidly through interstellar space at an orbital speed of 220 kilometers per second. The trajectory of the earth has also become spiraling. At this point, the subject's problem is solved, and the universe is really wonderful.

Summing up and quoting the words of netizens: The earth also wants to fall, but he is so anxious that he can't find where it is below. This truth is vividly illustrated.

Weightlessness. Because space is a weightless environment and there is no influence of gravity, it is the weightless force that controls the earth to suspend in space.

It is the gravitational and repulsive forces that control the earth, because the earth is subjected to various gravitational and repulsive forces, so it is suspended in space.

Space itself is nothing, there is no gravity, and there is no concept of going up and down the sky, so the earth can hang in space.

Originally, the vast cosmic space was indistinguishable from top to bottom.

When I was a child, looking up at the stars in the night sky always made people have many beautiful reveries and questions, such as, why don't the sun, moon and stars in the sky fall? Isn't it uncomfortable for Americans to live on the earth at our feet, hanging upside down with their heads down? And so on ridiculous questions.

At that time, I always felt how beautiful life in heaven was.

But as I grew older, my experience and knowledge increased, and I gradually understood that in fact, there is no so-called distinction between up and down, left and right in the vast and infinite universe. The reason for this illusion is simply that our reference points are different, and the feelings we get will be different. The so-called up and down is just an illusion generated by people.

For example, we human beings say that we live on the earth, but in fact we also live in the sky, and when you stand on the moon or other celestial bodies and observe the earth, you will find that the earth is floating in the sky like the sun and the moon. Further, when you stand on a celestial body, you will feel which celestial body is lower (also known as "earth"), and leaving that celestial body is up. When astronauts are on the space station, they will feel that the earth is in the sky, and because of weightlessness, they basically lose the concept of up and down, and no matter how you stay, you will not feel uncomfortable. Since there is no such thing as a distinction between the top and the bottom, the fear that the stars will fall is a joke.

Therefore, it doesn't matter if the top and bottom, the left and the right are all the same in the universe.

As can be seen from the above, the so-called up and down are based on the earth. That is to say, no matter where you are on the earth, you are under the earth, and leaving the earth is up. Therefore, there is no question of falling from the earth or headfirst down.

This also proves that there is no upper or lower in the universe.

We used to think that heaven was good, but now we understand that we ourselves are actually in heaven. When we envy how happy aliens are in the sky, aliens are also envious of us earthlings living in the sky so happily, haha!

From this point of view, we are the gods in the sky, we are gods, please cherish and enjoy our "fairy" life!