What effect does the eclipse have on the earth?

During the solar eclipse, the sudden disappearance of sunlight will inevitably destroy the thermal balance of the atmosphere, leading to changes in meteorological factors such as temperature, pressure and wind speed in the troposphere near the surface. In addition, the sudden disappearance of solar ultraviolet radiation may also affect stratospheric ozone.

At present, there is no evidence that solar eclipse will affect people's health, but this natural phenomenon has a serious impact on people's psychology. For thousands of years, almost all civilizations on earth have regarded solar eclipses as a harbinger of disaster, and many solar eclipses in history have caused social unrest.

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Scientific explanation of solar eclipse

A solar eclipse is a typical example of light propagating in a straight line in the same homogeneous medium. When the moon moves between the sun and the earth, it is not always like this. When a lunar eclipse occurs, two conditions need to be met. First of all, the solar eclipse always happens on the first day of the lunar calendar. Not all eclipses will happen on the first day of the lunar calendar, because the orbit of the moon (ecliptic) and the orbit of the earth (ecliptic) are not on the same plane.

There is an included angle of 59 between the ecliptic plane and the ecliptic plane. Secondly, both the sun and the moon move near the intersection of the ecliptic and the ecliptic, and the sun forms a certain angle with the intersection (eclipse limit).

Because the orbits of the moon and the earth are not perfect circles, and the distance between the sun and the moon is near or far, the shadow formed by the sun being blocked by the moon can be divided into umbra, pseudo-umbra (formed when the moon is far away from the earth) and penumbra on the earth. The observer can see the total solar eclipse in the umbra; Annular eclipse can be seen in the range of pseudoumbra; Only a partial solar eclipse can be seen in the penumbra.