What happens when the earth slowly stops rotating and when the earth suddenly stops spinning?

Before discussing this topic, we must admit that the probability of such an event in the next few billion years is almost zero.

Of course, in order to have an opportunity for our interest in science, it is necessary to discuss some extreme cases to deepen our impression of these mysterious phenomena, and in fact, there are most people who are quite curious about them. However, we will discuss two scenarios when the earth stops rotating.

The first scenario: the earth suddenly stops spinning!

If the Earth suddenly stops rotating, the atmosphere will still move at the Earth's original 1,100 miles per hour at the equator. All the plots will be washed away without anything attached to the bedrock, so the objects will continue to move forward due to inertia. This means that rocks, topsoil, trees, buildings, your pet dog, and so on, can all be swept into the atmosphere.

The same is true for the oceans, which will sweep the world by inertia and the land will be submerged by the oceans.

The second scenario: the earth gradually stops spinning!

If this process had occurred gradually over a period of billions of years, the situation would have been very different, of course this is much more realistic than the previous case, and it is also the most likely, if the rotation cycle slows down to one rotation every 365 days, this situation is called "solar synchronization", and every location on the Earth has a fixed day or night throughout the year, similar to the tidal effect, the Earth always faces the Sun on one side. This is similar to the situation on the Moon.

If it stops spinning completely, we get 1 2 years of daytime and 1 2 years of night. We're going to endure 6 months of daylight and the surface temperature will depend on your latitude, now the temperature at the equator is much warmer than at the poles, where the light is more biased and the heating efficiency is lower. This long-term temperature gradient will alter the atmospheric wind circulation pattern, moving air from the equator to the poles, rather than in a wind system parallel to the equator, as is the case now.

The position of the Sun in the sky changes from year to year, and now it is only due to the Earth's orbit and its axial tilt that the Sun moves seasonally up and down in the sky to the south. As you move along a constant line of the Earth's latitude, you will see the height of the Sun increase or decrease in the sky, just as we see the height of the Sun changing due to the daily rotation of the Earth.

For example, if you are at +24 degrees north latitude in the summer and the sun is exactly at the longitude overhead, the vertical angle of the sun will gradually slide towards the horizon as autumn approaches. Then as we approach winter, we will be on the dark side of the Earth and will have to move 180 degrees around the Earth in longitude to see the sun rise to 1 2 degrees in the sky.

There is also an effect on the Earth's magnetic field, which we know is generated by a dynamo effect that involves the rotation of the Earth. If the Earth stops rotating, its magnetic field will no longer regenerate, without which the Earth will not be able to withstand the solar wind, and our protection against cosmic rays and other energetic particles may disappear. This is a major biohazard.

To use an analogy, if people suddenly stop in the case of fast running, and slowly stop in the process of running, if the earth's rotation suddenly stops, then everything on the earth will still work forward at the speed of the diamond, you will see the effect of high-rise buildings rising from the ground in an instant, on the contrary, if you stop slowly, at least there will be no such a spectacular phenomenon of 10,000 high-rise buildings rising from the ground, and people will not fly out at the speed of the earth's rotation.

Slowly stop rotating, mass at the equator will flow to the poles, seawater, magma will erupt, and the entire surface of the earth will still have a huge catastrophe, causing life to gradually die. If it stops suddenly, all the buildings, the sea, the mountains, etc., will maintain their rotational speed, and it will still lead to a great disaster, but it will be immediate.

If it slowly stops rotating, the life on the earth will not be threatened, but there will be a lack of sunlight, and it will stop suddenly, and all the matter on the earth will be thrown back from the earth due to inertia.

If the Earth stops turning due to the atmosphere.

It has the property of inertia and remains in motion even after the Earth suddenly stops rotating. All objects on Earth that are originally stationary will be thrown off due to inertia. At that time, the earth will blow a hurricane that is 12 times larger than a Category 12 typhoon.

Under such strong winds, not to mention ordinary humans, animals and plants, many human buildings will also be blown away by the wind. Under this phenomenon, human civilization will be extinct in an instant.

If the Earth suddenly stops rotating, the atmosphere is still in motion, at the previous linear velocity of equatorial rotation.

1670 kilometers per hour, when there will be a horrific phenomenon of human death, the state of motion of things in the polar regions will change significantly, the human body will become a centimeter caliber bullet, once the search cong comes into contact with the strong wind, the human body will become a "supersonic tumbleweed, strong wind can also destroy any object in its path."