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The reason why the earth did not fall is because of the existence of the earth's gravity, and the sun's gravitational pull on the earth, which firmly binds the earth.
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Because the universe is vacuum, and the earth has gravity, things will fall down by gravity, and the universe has no gravity, so the earth is not affected by gravity in the universe, so it will not fall.
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Because space is a weightless environment and there is no force to act, the earth can be suspended in the universe without falling.
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Earth is a planet in the vast universe. Originally, there was nothing special. But because human beings were born on earth.
It stimulates human curiosity and desire to explore the earth. Since mankind successfully stepped into outer space and continuously launched satellites over the earth to monitor the universe and every move on the earth, mankind has finally determined that the earth is not a flat planet, and has also understood how mysterious the universe is.
For example, why is the Earth suspended in space? Isn't the earth going to fall? Newton once proposed the law of gravitation, saying that any kind of object on the earth will be affected by its own gravity, so in the universe, in fact, the law of gravitation also exists, but in addition to the gravity of the earth itself, there are other planets in the solar system to attract the gravitational attraction of the earth.
For example, the largest gravitational pull on the earth is naturally the gravitational pull of the sun on the earth. This is also the reason why the earth revolves around the sun all the time, but at the same time, there are many planets such as the moon and Mars around the earth, which will also affect the shape of the earth, the direction and angle of the orbit and so on. The mutual restraint of these different forces has caused the earth to appear in the universe in a suspended state.
As for why the earth does not fall, in fact, there is no difference between high and low, left and right in the universe. These directions originate from the positioning of the earth by human beings, so that the earth has a distinction between left and right, front and back, so the earth will not fall into the ground at all, because the celestial universe does not go up and down at all. In this way, the idea that the Earth is suspended in the universe is actually a misunderstanding.
No object in the universe is at rest, and the earth and the sun are moving in the universe all the time, because of the constraints of different forces, these celestial bodies do not collide with each other. We think of space as planets suspended in it, but in reality the universe is an environment filled with dark matter. As a simple example, an iron ball is placed in a sponge.
You can see that the iron ball is stationary, but in fact the iron ball is not stationary. Sponges create a wave of energy, and the universe is like a sponge.
What would happen if the earth did fall? In fact, there will be no violent collision between celestial bodies, after all, the earth is probably affected by some kind of external force, such as a violent impact, but the earth will soon be driven by a greater force. This planet can be the Sun or other massive stars and planets.
After all, if the sun hits the earth, then does the earth still have a chance to fall? Wasn't it directly destroyed?
After reading it, can you understand why the earth is suspended in space and why it will not fall?
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First"No object will naturally move in a certain direction (free fall) without external force".
Nothing falls naturally downwards, and the reason why we find things around us in our daily lives falls is because of the gravitational pull of the earth.
Of course, there is no such thing as going up or down or left right when it comes to space.
However, due to the gravitational pull of the sun, the earth will actually fall to the sun, but because the earth originally has a certain velocity, it will just revolve around the sun, just as the reason why the moon does not fall to the earth is because of its original speed, if there is no attraction of any other celestial body, the earth will still float in the universe, and any object will always remain stationary or move in a straight line at a uniform speed without the attraction of other objects or other forces.
To sum it up
Any object will remain in a uniform linear motion or stationary without being affected by external forces.
The force on the Earth is generally the gravitational pull of the Sun, so the Earth revolves around the Sun.
It is not the norm for objects to fall, it is the norm for objects to remain stationary or float without being affected by external forces.
Therefore, the earth, without being affected by its cautious forces, generally remains stationary or moves in a straight line at a uniform speed, and it can be considered that it is floating in the universe from the perspective of wide hail disturbances.
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Because you live on Earth and have the power of the front, you will have the concept of "falling".
Instead of floating in space, the Earth is "constrained" by the Sun, revolving around the Sun under gravitational attraction, and moving with the Sun around the center of the Milky Way.
There will be no "falling" as the case is called, unless there is a silver seepage near the Earth's orbit that is larger than the Sun.
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First of all, there is no absolute direction in the universe, and there is no such thing as above and below. Celestial bodies are distributed in the space of the Celestial Universe, and there is no absolute frame of reference, so the orientation of the celestial bodies is relative. We can think of the Earth as "below" the Sun, or the other way around, as the Sun "below" the Earth.
Although the gravitational pull of the Sun continues to exert itself on the Earth, the Earth Ball will not be attracted to it, as the Earth is constantly rotating around the Sun, which counteracts the gravitational pull. This principle can be illustrated with the "Newtonian cannon".
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Because although the earth is particularly heavy, in the entire universe, it is like a belt of rock dust attacking it, and it is attracted and repelled by many celestial bodies, so it is said to float in the universe.
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The earth is so heavy. It can still float in the universe without falling because of the attraction of the sun.
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This is a particularly magical thing, you are afraid that there are not too many celestial bodies in the universe that are sunk by the earth.
However, in fact, all the objects in the universe do not insist on standing still, but are constantly rotating or changing.
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The earth is so heavy, why can it still float in the universe Sentence 2 Well, some of the planets larger than the earth are floating here, and everything is in a floating state, but we feel that Sun Zhong is not dismantled. then the mountain.
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Why can the Earth be suspended in space and not fall into the depths of the universe because of its massive mass? What mysterious force controls him? What's beneath the earth?
This also starts in the 17th century, one day in 1666, an apple happened to hit a man's head, and then inspired him, and many years later proposed the law of universal gravitation, he is the originator of physics, Newton.
The law of gravitation tells us that everything in the universe is attracted to each other, and as long as there is mass, there is gravity, and the greater the mass, the greater the gravitational force. The mass of the sun is far greater than that of the earth, and the strong gravitational pull attracts the earth all the time, so we can think that the direction of the sun's gravity is below the earth, whether we usually drive or take an airplane, we can clearly feel that these vehicles are moving, the same is moving, the earth is flying in the universe, why can't we feel it at all? In fact, this is related to the gravitational force mentioned earlier, you must know that the earth weighs about 60 trillion tons, so everything on the earth will be firmly attracted by traction, anywhere on the earth, whether it is the South Pole or the North Pole, whether it is a plain or a mountain, gravity is towards the center of the earth, which is why we can feel the direction on the earth.
When astronauts leave the earth and stay in space, it is because there is no gravity, for them it is a state of complete weightlessness, which causes them to only float in space without any direction to speak of, at this time some people may be curious, since the eight planets, including the earth, revolve around the sun. Isn't the sun stationary, but in fact, the sun has been orbiting the Milky Way. The Milky Way above the solar system is also revolving around the Virgo Supercluster, and one day in the future humans will find that the universe is also revolving around a larger universe, so that everything is firmly controlled, layer by layer.
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Why is the Earth, which weighs 60 trillion tons, suspended in the universe? Is there some force dragging it?
More than 300 years ago, after discovering gravity, the scientist Newton once again put forward an astonishing guess "Newton's cannon", simply put, if we fire a cannonball on the earth towards a distance, as long as the cannonball flies fast enough, then the cannonball will no longer fall to the ground, but will always fly on the earth. According to calculations, when the velocity of the shell reaches kilometers per second, then the shell will overcome the gravitational pull of the earth and move in eternal synchronization with the earth.
Then, in the 20th century, Einstein put forward a subversive theory of "space-time distortion", which simply means that the celestial body will have a certain space distortion externally, and if the mass of other stars is not enough, it will fall towards the massive celestial body.
In the solar system, the mass of the sun occupies and has completely surpassed other celestial bodies, and it was later discovered that the way the solar system operates further shows that the reason why the earth can be suspended in space is precisely because it has a certain velocity, just like Newton's cannon.
According to scientists' estimates, if the earth's flight speed can reach kilometers per second, then the earth will completely get rid of the sun's control, and if the earth's speed is greatly reduced, it will continue to fall towards the sun because of the sun's spatial distortion, and finally be ruthlessly swallowed by the sun, then the temperature on the earth will skyrocket to 3000 degrees, and human civilization will disappear into the universe.
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