Bai Lu | Lu from Tonight Bai, the autumn wind is cool to this

Today is the 7th year of the 7th year of the sky with you

Bai Lu is the fifteenth day of the "twenty -four solar terms", the third festival in the autumn, the end of the Shenyue and the beginning of the moon and the beginning of the moon. Dou refers to Gui; the sun is 165 degrees; "Bai Lu" is an important solar term that reflects the growth of cold in nature. As the weather gradually turned cold, the sun was hot during the day, but the temperature fell quickly after the evening, and the temperature difference between day and night was large.

When it comes to Bailu, the summer wind is gradually replaced by the winter wind. The cold air turns into an attack. In addition, the direct sunlight point moves south. The sunshine time of the northern hemisphere has become shorter, the light intensity weakens, and the ground radiation heat dissipation is fast. Essence Bai Lu basically ended the sweltering heat in the summer, the weather gradually turned cold, and the cold was dew. The ancients were equipped with five elements, autumn, gold, gold and white, and described autumn dew in white, hence the name "Bai Lu".

According to the observation of nature, the ancient Chinese divided the white dew into three years: "One waiting for Hongyan, the two of the black bird returned, and the three birds were ashamed." This means that this solar term, Hongyan and Swallow and other migratory birds to avoid the cold , Hundred Birds began to store dry fruits to prepare for winter. At this moment, farmers are also busy harvesting crops. The folk customs of Bai Lu during the period of Bai Lu mainly sacrificed Dayu, brewed grain wine, and drinking Bailu tea.

Bai Lu is a symbol of the cool day, and it also evokes the romantic feelings of literati. The Tang Dynasty Li Bai wrote an infatuated "jade steps, Bai Lu, and the Luo socks in the middle of the night"; the Tang Dynasty Du Fu groaned the nostalgic "dew from tonight white, the moon is the home of the hometown"; "With a long time, Jin Bo gradually turned, and white dew dot."

Production: Hu Zhenkai Gu Jinyu

Produced: Li Zibo

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