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The Earth collides with the planets, and then the Earth is destroyed, and it doesn't turn.
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Under the action of a certain force, it rotates, but if it doesn't, you have to wait until it can't turn When the earth is old, when it is old, :-
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Motion is absolute, so matter is always in motion;But motion is relative, so for different frames of reference, it is possible to be stationary, and in your case, to drill to the very center of the earth and stand still, that is, to maintain the same angular velocity as the earth to rotate, and then you feel that the earth is not rotating (not even centrifugal force is there).
Of course, the above is only in terms of the rotation of the earth, if you talk about all kinds of revolutions, you have to stand at the center of the solar system, the center of the Milky Way, .......
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Determined by the initial state, the materials that initially made up the earth had angular momentum towards the earth, and the angular momentum was conserved during the aggregation process, forming the current situation. In order not to rotate, there must be an external moment (such as a star hitting the earth).
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If the nuclear ** of each country is detonated at the same time, it will not turn!
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Why does the earth rotate, because it is a ball, and it has to rotate if it is fine. In fact, whether to turn or not to turn is in the hearts of the people, and if you think that it will not turn, you will reach the realm. It doesn't turn around, it turns very much.
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It feels like the earth is spinning and turning!
There's no such thing as not turning!
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The earth is rotating around the sun at the same time, because of gravity, everything on the surface is rotating with the earth and the revolution feast, so you feel that only Feng Feng is not rotating, it is not that he does not rotate.
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You have to feel motion sickness to turn?
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The main reason is: the gravitational pull of matter and the absoluteness of motion.
At the beginning of the formation of the solar system, it may be a mass of interstellar matter rotating around its center, and in the process of motion, due to the gravitational effect, the larger particles in it will attract the smaller particles around it to form a larger mass of matter, then the mass of matter in the center will form the sun, and the mass of matter farther away from the center will form a planet. The Sun at the center has the most mass and the most gravitational pull, so why aren't the other planets attracted?This is the result of the balance between gravity and the inertial force of motion, that is, the planets have a tendency to move away from the sun, while the centripetal force formed by the sun's gravity restricts them from escaping, thus causing the phenomenon of planets including the earth revolving around the sun.
The planets orbit in a position where the centrifugal force and the centripetal force are in equilibrium with the sun.
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I've always wondered why the balloon spins and doesn't fall down
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Because in the interior of the earth, the liquid metal in the outer core flows at high speed, generating an electric current, which causes the earth to rotate.
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It's like why people drink water and why they eat.
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I've always wondered why the balloon spins and doesn't fall down
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Scientists believe that the primordial nebula was produced after the universe was large, and it was in the gravitational contraction of this nebula that the earth was born, and the direction of rotation of the nebula was from west to east, so the earth retained the inertia of rotation produced when contracting, so there was rotation and revolution.
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