Why does it rain on Tanabata?

The phenomenon of rain on Tanabata can be explained to some extent as the natural change of the weather system.

In the traditional meteorology of China, Tanabata is called "Tanabata Rain". This is because Tanabata is in summer, with high temperature and humidity and frequent weather system activities, which is easy to form convective clouds and showers.

Besides the change of weather system, the rain on Qixi also has a certain relationship with natural phenomena. On Tanabata, when the sun passes through Tianhe, it will be blocked by Tianhe, and the light will be blocked to a certain extent. This shading will cause the ground temperature to drop, forming a cooler climate, and also promote the condensation of water vapor, thus forming rainfall.

The rain on Tanabata is also related to the rotation of the earth. The rotation of the earth makes the air flow on the ground change to some extent, and this change will also affect the formation of rainfall. On Tanabata, the earth rotates faster and the airflow is more intense, which provides certain conditions for rainfall.

folk custom

1, Xiangqiao Club: In Yixing, Jiangsu, there is the custom of Xiangqiao Club on Qixi. Every year on Tanabata, someone will participate and build a fragrant bridge. The so-called incense bridge is a bridge with a length of four or five meters and a width of about half a meter, which is made of all kinds of thick and long incense-wrapped paper. It is equipped with railings and decorated with flowers made of five-color lines.

At night, people offered sacrifices to the binary star, prayed for good luck, and then burned the incense bridge, symbolizing that the binary star had crossed the incense bridge and met happily. This fragrant bridge originated from the legendary magpie bridge legend.

2. Receiving dew: In rural Zhejiang, the custom of receiving dew with washbasin is popular. Legend has it that the dew on Tanabata is the tears when cowherd and weaver girl meet. If you put it in your eyes and hands, it can make people agile.

3. Greeting the fairy: The begging festival in Guangzhou, Guangdong Province is unique. Before the festival comes, the girls prepare colorful paper, medulla tetrapanacis, rope and so on. Advance, and make up all kinds of fancy gadgets. They also put seeds and mung beans in a small box and soaked them in water to germinate them. Buds grow to more than two inches and are used to worship the gods, which are called "worshipping the immortals" and "worshipping the gods".

From the sixth night to the seventh night, the girls put on new clothes and jewelry for two nights in a row. After all the arrangements are made, they burn incense and light candles and bow down to the stars, which is called "welcoming the immortals". From the third night to the fifth watch, they will worship seven times in a row.