What is the solar term under the heat?

After the heat, it is the Millennium. Fifteen days after the intense heat, the temperature dropped rapidly. At night, the water vapor in the air condenses into tiny water droplets, which attach to flowers and trees. The next day, it is crystal clear in the morning light, hence the name "Bailu".

It is the fifteenth of the twenty-four solar terms. In ancient China, the Millennium was divided into three stages: "The geese come and the birds return, and the birds are ashamed." In this solar term, geese, swallows and other migratory birds fly south to avoid the cold, and hundreds of birds begin to store dried fruits and grains for the winter. It can be seen that the Millennium is actually a symbol of cold weather.

"White Dew" is a festival that reflects the temperature changes in nature. From a meteorological point of view, at this point of the solar term, because the weather is getting colder and colder, the sun is still hot during the day, but when the sun goes down, the temperature drops quickly.