This phenomenon is also recorded in ancient books such as Shang Shu Hong Fan and Sun Tzu's Art of War.
In addition, "Xiaoya. "At the turn of October" records: "At the turn of October, the bright moon is in the sky. It is ugly to have food every day. The moon is very small, and this day is also very small; Today, the people are also mourning. "
It means that from the end of September to the beginning of October, the first day of October is a new day. The sudden solar eclipse in the sky is really a scandal. The moon is dark and colorless, and the sun is bleak and streamer. Nowadays, all the people in the world are very sad.
The solar eclipse recorded in the poem took place on September 6, 776 BC. This is the earliest solar eclipse record in the world.
It can be seen from the singing of The Book of Songs that people at that time had a clear understanding of various weather phenomena.
North wind: "The north wind is cool, and the rain and snow are wet." "The north wind roared and the rain and snow fell." It means that the north wind is cold and the rain and snow are all over the sky; The north wind is fierce and the rain and snow are flying all over the sky.
Xiao Ya Xin Nan Shan: "The sky is the same as the clouds, and the rain and snow are like notes." It means that the sky is covered with thick clouds, and rain and snow will follow.
Xiaoya. April: "Summer stays in April, and summer stays in June." "Autumn is sad, flowers have flies." "In the severe winter, the wind is blowing hard." April is the beginning of a long summer, and June is a hot summer. The autumn wind is bleak When it comes, flowers and trees wither and leaves fall. It is very cold in winter, and the wind is biting.
"The wind. Wandering: "facing west, worshiping the rain." It means that rainbows hang in the early morning in the west, and it rains most of the time from morning to noon.
"Xiaoya Gu Feng": "Learn from Gu Feng, the mountains are verdant, no grass will die, no wood will die." It means that the scorching wind blowing from the valley is hot and dry, and there is no grass, no wood and no withering everywhere.
In these poems, many concepts of weather phenomena are correctly used, and the interrelated causes and processes of some weather phenomena are also expressed.