As if the Earth had no gravity

According to the law of gravitation, this is impossible!

If the earth disintegrates, humanity dies! Ha.

Don't think about it, wash and sleep!

With the continuous development of social economy, in our real life, many friends have a lot of questions, are very curious, especially some scientific questions, I believe that many friends should be very familiar with our living sun, but at the same time there is a big doubt, that is, if there is no sun, will there be gravity on our earth? In fact, according to the information of relevant experts, the gravitational pull of the earth may still exist.

First of all, we have to understand this problem, the rotation of the earth is the result of the gravitational effect of the sun, if the sun does not exist, then the gravitational force of the earth is very likely to exist, but in fact, if the sun does not exist, then there is no way for human beings on the earth to survive, in other words, if the sun disappears, then human beings must also disappear, because in the entire ecosystem, there is a circulation system between the sun, producers, and consumers, so it is impossible to go or lack one of them.

Of course, many people will think that this statement is very one-sided. In fact, according to Einstein's general theory of relativity, the existence of gravitational waves is also related**, the propagation speed of gravitational waves is the same as the speed of light, so many scholars believe that after the sun disappears, the earth will probably disappear after a few minutes with the sun's gravity, but the sun's gravitational force on the earth is considered to disappear, but in fact, the earth will continue to orbit according to the original orbit after that, at this time, the earth's gravitational force still exists, Until the Earth will follow the direction of constant speed and generate a new round of gravitational pull.

In response to this problem, it has been discussed by many scientists, and many netizens have also explained this, but we can also understand that if there is no sun, in fact, the earth will still have gravity, and according to the speed of the reflection, it will eventually be attracted by new celestial bodies and produce new gravity.

The rotation of the earth is attracted by the gravitational attraction of the sun, if the sun does not exist, the solar system does not exist, the earth may exist, but the spatial position of existence will definitely change; If the sun disappears, then human beings will definitely not exist, and the entire biosphere, the sun, producers, consumers, decomposers, and the inorganic environment are indispensable.

If there was no sun, the earth would not exist, let alone the gravitational pull of the earth, because all living beings on our earth need sunlight.

The reason for the occurrence of gravitational force (brief description): When the high-energy particles moving in the universe pass through matter (celestial bodies or particles), part of them are intercepted and absorbed to form a weak energy region (Einstein's space-time curvature), which is the gravitational range mv2=e=mv2 (the formula of the law of conservation of energy conversion). For more details, please see the forthcoming gravitational hypothesis, "Elemental Periods and the Causes of Gravitation".

If there is no sun, the earth will still have gravity, and the earth's gravitational pull is generated by the earth itself and has nothing to do with the sun.

Without gravity, it is very likely to be a catastrophe for human beings.

1. Everything that rises falls down.

If there is no gravity for a moment, it may be much safer for people to stay indoors, because when outside, many things will fall directly because of the lack of gravity. People on the ground or directly float in the sky, and fly straight into space, not only the ocean, everything that is not fixed on the ground, will start to drift in space like people. People who are indoors will be much safer because they will be firmly confined by the building, but that doesn't mean absolute safety.

2. Misalignment of human organs.

In the absence of gravity, the growth organs of the human body must be different from those of now, and because it is difficult to adapt to the absence of gravity, it is likely to lead to direct death of the human body. Just like astronauts who have been living on the space station for a long time, they will be found to have muscle weakness and bone loss, so these problems will be replicated in humans and become more severe.

3. Earth**.

As we all know, there is a mutual gravitational force between the earth and the sun, if the earth has no gravity, then the sun must be the same, so this result will lead to the ** of the two spheres, even if we do not die of no oxygen, no food, and finally die of this **. Therefore, in the absence of gravity, it is difficult to survive with understanding.

First of all, the first point we need to overcome is the problem of oxygen, no gravity means no oxygen, no oxygen, no plants, no plants, no animals. It will really be the end of the world. However, according to relevant research, this day will not come unless the earth is truly destroyed.

And without gravity, there would be nothing meaningful on Earth, and human extinction would be an absolute result, so this assumption is unrealistic, but still appalling.

Newton proposed gravitation very early on, and he believed that all celestial bodies in the universe are formed at a fixed distance by gravitational attraction to each other. The balance between the two is maintained, and if this balance is broken, it means that another celestial body will be destroyed. It's like if a planet hits our Earth and knocks us in the direction of the Sun, then the Earth will face a greater gravitational pull from the Sun.

So will it cause the earth to continue to fly towards the sun, and finally go to destruction?

If the earth loses its gravity, then everything on the earth will not exist, even the atmosphere, dust, etc. will not be bound by the earth, and will naturally fly into space.

The earth itself has a large mass of the earth, so it will also show gravitational pull on any object around the earth.

Gravity is not equal to the gravitational pull of the Earth on an object. Due to the rotation of the earth itself, except for the poles, objects in other places on the ground are moving in a uniform circular motion around the earth's axis along with the earth, which requires a centripetal force directed perpendicular to the earth's axis, which can only be provided by the gravitational force of the earth on the object.

Gravity: The force of mutual attraction between all objects with mass. This force exerted by the Earth on other objects is called gravity.

Summary. Outer space also has gravity, and what we think of as no gravity actually refers to a state of weightlessness, when the spacecraft orbits the earth at high speed, the centrifugal force and gravity cancel each other out, thus forming a weightless state.

Why is there no gravitational attraction in space, only on Earth?

Outer space also has gravity, and what we think of as no gravity actually refers to a state of weightlessness, when the spacecraft orbits the earth at high speed, the centrifugal force and gravity cancel each other out, thus forming a weightless state.

Excuse me: the gravitational force of the earth is downward direction, so in which direction is the gravitational force in space?

The direction of the gravitational force in space is towards the Earth.