What is the law of lunar phase change?

What is the law of lunar phase change?


According to my understanding of the lunar phase, I summed up two points: 1. The moon and the sun rise and set at the same time on the new moon, and then rise 50 minutes later every day, about 29 days and a half a cycle. 2. The bright side of the moon always faces the sun, and the farther away it is from the sun, the bigger the bright side is



The change of lunar phase is formed by (), and the change is regular


Lunar phase change is formed in the process of the moon's revolution around the earth



How does the eclipse of the sun and the moon form


The formation of solar and lunar eclipses is due to the linear propagation of light
The causes are as follows
Solar eclipse is in the same straight line between the sun, the moon and the earth. The moon blocks the sunlight, so that some parts of the earth, even in the daytime, can not see the sun or only see the incomplete sun. The sun is completely covered, which is called total solar eclipse, and the covered part is called partial solar eclipse
And the eclipse, is in the same straight line of the earth to block the sun, resulting in a clear night sky, the moon has become black, the same eclipse is also divided into total eclipse and partial eclipse
In ancient China, because people did not understand the cause of the formation of the eclipse, superstitious thought that the occurrence of the eclipse is going to have a major disaster, so in ancient times people called the eclipse "dog eat the moon", now we know that the solar eclipse and the lunar eclipse are a natural phenomenon of the law of linear transmission of light