What are the nicknames and nicknames of heaven?

Yu Tian, Tianyu, Yuyu, Tian, Tian, Tian, Tian, Tian, Tian, Tian, Tian, Tian, Cangmin, Canghao, Taixu, Dayu, etc.

Tiān, the first-class Chinese characters (commonly used words) are pronounced as tiā n. Indications (if you say pictographic characters, you say cognitive characters). First seen in Oracle Bone Inscriptions, it looks like a "man" standing in front with his head protruding from a box. It means the same as "overhead". The original meaning of the word "creation" is human head, and it also refers to the boundless sky above human head, which extends the meaning of sky and space, as opposed to the word "earth".

The color of the sky

In terms of color, the sky has also changed a lot. At the end of the Eastern Han Dynasty, the slogan of the Yellow Scarf Army led by the three brothers Zhang Jiao of Taiping Road was: "Heaven dies, the yellow sky should stand, the year is in Jiazi, and the world is peaceful." People think that the sky only refers to the Han army dressed in blue. In fact, the sky has two colors, one is blue and the other is light blue. One is gray desolation.

When the weather is good, there are no clouds in Wan Li, and the sky is blue, but it turns gray when it is about to rain, so the sky refers to both sunny and cloudy days.