What is the principle of the earth's rotation?

Various theories or hypotheses about the earth's rotation. Considering that the reason of the earth's rotation should be combined with the earth's revolution, there is no absolutely stationary object in the universe, and the massive celestial bodies subjected to various external forces must rely on rotation to maintain their balance in order to maintain their own movement.

There is ether in the universe. Because the existence scope of the ether is infinite and it is always in motion, the earth and the sun are both in the ether, and both the earth and the sun will be subjected to the force of the ether.

Under the action of this force, it began to move in the direction of the ether, and the earth was attracted by the sun when it was acted on by the ether. Under the action of these two decisive forces, the earth began to rotate.

Extended data:

origin

The protoplanetary disk imagined by the artist.

Theoretically, the formation of the earth is part of the birth of the solar system: at first it was just a lot of rotating dust, rocks and gases, and finally it formed the solar system. Its chemical elements are hydrogen and helium produced by the Big Bang and heavy elements released by supernovae.

This interstellar dust is not uniform, and any asymmetry in the process of gravitational accretion will lead to the final formation of planetary angular momentum. The current rotation period is the result of initial rotation influenced by other factors, including tidal force and Theia collision hypothesis.

Evidence of the Earth's Rotation

In the reference frame of the earth's rotation, the trajectory of a freely moving object will deviate from the fixed reference frame. Due to the influence of Coriolis force, the falling body will deviate eastward from the vertical line perpendicular to the launching point, and the trajectory of the northern hemisphere will deviate rightward from its launching direction (the southern hemisphere will deviate leftward).

The influence of Coriolis force has many manifestations, especially in meteorology, the cyclones in the southern hemisphere and the northern hemisphere have different rotation directions. Hook dropped a ball from a height of 8.2 meters according to Newton's suggestion in 1679, and predicted that it would shift eastward by half a millimeter, but the experiment failed.

At the end of 18 and the beginning of 19, Polonia's Giovanni Battista Guglielmini, Hamburg's Johann Friedrich Benzenberg and Fraiberg's Ferdinand Reich carefully released the mass with towers, thus obtaining the results.

Baidu Encyclopedia-Earth Rotation