What does the goddess who mended the sky have to do with it?

Nu Wa's smelting five-color stones to fill the sky implies the great achievements of ancient astronomy, indicating that Nu Wa discovered five planets in the solar system, and determined their operating rules, specific positions and their influence on the earth's climate change. The practice shows that Nu Wa not only made achievements in astronomy, but also initiated the pottery and smelting industry in China.

Nu Wa's broken claws are enough to erect four poles, that is, four big pillars supporting the sky. It is difficult to describe the running state of Heaven. Time is the key to determine the running state of Heaven, which is the "four pillars" used by fortune tellers in modern China-year, month, day and time. Time is fixed, that is, the sky is fixed.