What would the earth be like if the earth had eternal day on one side and night on the other? How will humanity be?
From ancient times to the present, the normal life of people is to work at sunrise and rest at sunset, and this living state is also formed by the law of the earth's rotation around the sun, but in the universe, not all planets are rotating, some After the planet revolving around the earth is tidally locked, a day on this planet is the same as the time it takes to revolve around the earth. For example, the moon is tidally locked by the earth, which is exactly the same, so we can only see side of the moon.
The so-called tidal locking is the phenomenon that the planet loses its rotation directly due to being locked by gravity. If the earth is tidally locked by the sun, the earth will not be able to complete its autonomous rotation, and the rotation time will be the same as the revolution time, directly caused by The phenomenon is like the moon. One side of the earth is always facing the sun, and the other side is always facing away from the sun. Then the earth will have the phenomenon of eternal night and day.
If the earth is not rotating, and the day and night are not changing, then the earth will have a phenomenon of ice and fire. On the one hand, due to the constant irradiation of the sun, the species on the earth cannot survive, and the central area will be exposed to the sun. The temperature of the side facing away from the sun for a long time will be greatly reduced, and even freezing will occur. It is also impossible to survive, and the place between the two is the best choice for species survival.
However, since then, all species on the earth will fight for habitat again, facing the problem of survival and destruction. After all, the area where human beings can live is very limited, and because of the slow flow of atmospheric circulation on the earth, As a result, some of the original natural phenomena will also be reduced, such as wind, rain, etc., and continuous exposure to the sun and continuous low temperature will lead to the extinction of many species on the earth. At that time, it can be said that it will be the end of the earth's species.
The main reason for the phenomenon of tidal locking is due to the constant collisions between the planets. The initial rotation of the earth can be said to be quite fast, but due to the gravity of the moon, the rotation speed of the earth gradually slows down from the first 10 hours. It is now 24 hours, and after that, the earth will rotate slower and slower under the common gravitational force of the moon and the sun, but it is still very long to reach the state of being locked by the gravity of the sun. development, will also solve these problems