-
Anonymous users2024-02-11The Earth is a piece of material thrown by the ancient sun, and the huge throwing force causes it to rotate as fast as other planets (this force is very large, but it is gradually decreasing), and at the same time, the gravitational pull of the sun makes it impossible for the earth to fly farther, so the earth has an revolution (when the sun is gone).
If it does not rotate and revolutionize, then the earth will be in a semi-static state, floating aimlessly in the universe, and there will be no more day, night, or season.
-
Anonymous users2024-02-10The earth is affected by the gravitational pull of the sun and will crash towards the sun.
Without rotation, there would be no diurnal variation, and most of the current creatures will perish (one day and night a year, as in the North and South poles).
Revolution is due to the centripetal force provided by the sun, the earth has an initial velocity, and autobiography is a remnant of the initial velocity of the convergence period, which will become slower and slower.
-
Anonymous users2024-02-09It is caused by gravitational force, because gravity causes the celestial body to move into an elliptical orbit with a double circle, because one of the centers of the orbit is inside the celestial body, so this celestial body autobiographies, and the celestial body that is in this orbit with him revolves around him. (This is a question that is studied in Chapter 67 of Physics in Senior 1).
-
Anonymous users2024-02-08In addition to the absence of life, the unjust rotation will also cause the absence of four seasons, and the absence of autobiography will be day and night.
The revolution is based on the gravitational pull of the Sun and some other stars. In fact, the rotation is determined when the stars are first formed.
-
Anonymous users2024-02-07Without rotation, there is no day or night!
If there is no rotation, there will be no four seasons!
Rotation and revolution are formed by gravity! ~
-
Anonymous users2024-02-06Beginning Newton explained it as "God's first impulse" (somewhat ridiculous). The theory of the big ** explains that the universe ** billion years ago expanded the universe, so that objects have kinetic energy, and the solar system in which we are located is also a stable system formed later.
-
Anonymous users2024-02-05Gravitational force. Unjust turning?? No humans. Not spinning? No sunrise...
-
Anonymous users2024-02-04A quote from Stephen Hawking's A Brief History of Time can tell you that the universe we see is the way it is, because if it weren't for that, you wouldn't be able to observe it here. (I'm not kidding, that's what he really said).
-
Anonymous users2024-02-03Movement is eternal
Stillness is relative
Movement is absolute!
wo ding !!
-
Anonymous users2024-02-02Movement is eternal
Stillness is relative
Movement is absolute!
-
Anonymous users2024-02-01Well, it's crooked. Universal gravitation...
Ask Newton specifically ...
-
Anonymous users2024-01-31Ask the Earth and see what it has to say!
-
Anonymous users2024-01-30Universal gravitation... It seems so.
Scientists don't know exactly what to say.
-
Anonymous users2024-01-29The Earth is in orbit, revolving around the Sun, and every ball is like that, maybe it's gravitational or something.
-
Anonymous users2024-01-28The centrifugal force of the revolution is balanced with the gravitational force of the sun, so that the earth will not fall on the sun and burn up. Due to the effect of the sun's gravitational field and rotation, the rotation of the earth also has its own laws.
This is related to the formation of celestial bodies. The Earth rotates from west to east on its axis of rotation, rotating counterclockwise from the North Pole and clockwise from the South Pole. The Earth's axis of rotation is angled to the ecliptic plane, perpendicular to the equatorial plane.
-
Anonymous users2024-01-27The rotation of the earth produces the diurnal variation on the earth, and the rotation of the earth causes the alternation of the seasons.
The sun rises in the east and sets in the west, the alternation of day and night, and the changing of the seasons, these familiar natural phenomena are all caused by the movement of the earth. There are two main forms of earth's motion: rotation and revolution.
The Earth's constant rotation from west to east around its axis is called rotation; The rotation of the earth around the sun from west to east is called revolution.
Characteristics of the Earth's Revolution:
1. The rotation of the earth is centered on the sun and rotates from west to east;
2. The angle between the earth's orbit and the equator is 23°26;
3. The time of the revolution of the earth is days;
4. The rotation of the earth produces the four seasons in the northern and southern hemispheres.
Yes, frictionless motion does not require force to maintain, so the revolution of the earth has nothing to do with the sun. Assuming that the gravitational pull of the Sun could cause the Earth to accelerate from a standstill, the Earth would have to continue to accelerate, not as it does now. If it really all started at rest, there would be only the sun left in the solar system, because everything fell into it. >>>More
It is to generate a geostrophic deflection force, with the northern hemisphere shifting to the right and the southern hemisphere shifting to the left. In addition, the geostrophic deflection force is not a force, but has the effect of changing direction.
We know that almost all celestial bodies in the solar system, including asteroids, rotate according to the law of the right-hand rule, and the rotation of all or most celestial bodies is also the right-hand rule. Why? The predecessor of the solar system was a dense cloud, driven by a certain force that attracted each other, and this accretion process made the density gradually larger, which accelerated the accretion process. >>>More
Rotation and revolution.
In 1543, Copernicus first put forward the concept of the earth's rotation and revolution in its book "On the Motion of the Heavenly Bodies". Since then, numerous observations and experiments have proved that the Earth rotates from west to east while revolving around the Sun. In 1851, the French physicist Foucault successfully conducted a famous experiment (Foucault's pendulum test) in Paris to prove the rotation of the Earth. >>>More
We know that almost all celestial bodies in the solar system, including asteroids, rotate according to the law of the right-hand rule, and the rotation of all or most celestial bodies is also the right-hand rule. Why? The predecessor of the solar system was a dense cloud, driven by a certain force that attracted each other, and this accretion process made the density gradually larger, which accelerated the accretion process. >>>More