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The reason why we can survive on the earth is because there is water, oxygen, gravity, and the earth has arranged everything, and the disappearance of any one of them would be a great disaster for us human beings, if there is no gravity,Can human beings achieve heaven? Without gravity, of course, humans would float in the sky, but the oxygen in the high places is so thin that it is not suitable for human life.
From ancient times to the present human beings want to understand the mystery of the sky, fly freely like a bird, in ancient China, there was a person called Wanhu who used fireworks to send himself to the sky, the result is that he is really "in the sky", because of the effect of gravity, we can touch the ground, when one day gravity disappears, the world will be chaotic, all buildings will float, animals and plants will hover in the air, the same is true for human beings, so that the sky is indeed realized, but the oxygen in the sky is very thin, The air pressure is very high, plants have no nutrients from the soil, they will gradually die, animals have no supply of plants, and they will gradually disappear, human beings have no plants and animals, and it is also a disaster of extinction, so without gravity, all life on the earth will disappear close to ninety percent, and only those microorganisms can survive.
In the decades of scientific and technological progress, we have made great progress in aerospace, landed on the moon, achieved space exploration, where there is no gravity, astronauts will float in space, if there is no reinforcement of safety ropes, they will slowly drift in the universe, and because there is no oxygen, so microorganisms can not survive, so they can only become mummies, forming a mystery for future generations of creatures, becoming space junk, so you can imagine how important gravity is to us.
Life is very fragile, if there is no water, life will die, if there is no oxygen, life will die, if there is no food, life will die, so we have to protect everything now, so that human civilization can go further, without all these blessings, we will have nothing.
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Heaven can be realized, and if there is no gravity, there is no gravity, and humans can go directly to the sky.
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Even without gravity, humans would be in the atmosphere at most, and would not go into space, because flying out of the atmosphere to reach low orbit would have to reach at least the first cosmic velocity.
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Without gravity, humans can go to heaven. Because there is no gravity, we will be floating in the air.
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According to physical knowledge, everything on Earth depends on gravity to stay on the ground. Without gravity, all objects would be weightless and floating in the air. Of course, there will be no rivers either.
Rivers turn into small droplets, suspended in air and dust. Astronauts are also weightless in space. Everything in the spaceship is suspended if it is not fixed.
A person can fly into space with a slight jump, and there is no gravity and no return, and I am afraid that people will have to tie a rope or go through an underground tunnel when they go out. The air on Earth does not stay, it spreads out into space, and then there is no air for people to breathe. And also...
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Humans have become accustomed to gravity on Earth. If the gravitational pull of the earth is lost, the human cardiovascular and cerebrovascular system and immune system will be affected. The risk of cancer will also be greatly increased. It can be seen how important gravity is to human beings, which we usually don't care about.
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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.
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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.
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Humans are affected by gravity, mainly because gravity is a gravitational force that attracts objects on the earth's surface to the force generated by the action of the earth's center. When an object is subjected to gravity, it falls in the direction of the center of the earth, which is where gravity acts.
The magnitude of gravity is directly proportional to the mass of the object, and the laughing height is inversely proportional to the distance of the object from the center of the earth. Thus, near the earth's surface, the magnitude of gravity is directly proportional to the mass of the object and inversely proportional to the square of the object's distance from the center of the earth. This means that near the Earth's surface, the gravity of the sock ruler decreases as the object's distance from the Earth's center increases.
Human beings are affected by gravity, mainly in the following ways:
Gravity: Human beings, like other objects, are affected by gravity, causing the human body to fall in the direction of the center of the earth, resulting in gravity.
Weightlessness: In space, due to the absence of gravity, the human body is in a state of complete weightlessness, in this state, various physiological reactions of the human body will become different, such as inability to breathe, slow blood flow, etc.
State of motion: In the vicinity of the earth's surface, the magnitude of gravity is directly proportional to the mass of the object and inversely proportional to the object's distance from the center of the earth. Thus, near the earth's surface, gravity decreases as the object's distance from the center of the earth increases, which allows the human body to be in a state of equilibrium and not fall downward.
However, in space, due to the absence of gravity, the human body is in a state of complete weightlessness, and in this state, various physiological reactions of the human body will become different, such as the inability to breathe, slow blood flow, etc.
Earth's rotation and revolution**The Earth's rotation and revolution produce inertial centrifugal force, which is one of the reasons why gravity near the Earth's surface decreases as the object's distance from the Earth's center increases.
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Humans are affected by gravity because the earth is massive and has a strong gravitational pull. All objects produce a gravitational pull that is directly proportional to their mass and inversely proportional to the square of the distance. Therefore, all objects on Earth are subject to gravity, including humans.
Even though the mass of human beings is relatively small, if they are close enough to Earth, the Earth's central blindness will still have a significant impact on humans.
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According to Newton's law of gravitation, the earth is attractive to people, and the direction of gravity is the center of mass, so human beings are affected by gravity;
Einstein's theory of relativity is used to explain that the Earth's Finch, as a large imitation of the mass of the earth, bends the space around Beiming, and the objects on the surface of the earth have a tendency to fall towards the center of the earth.
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