There's a saying that you don't thunder when you're scared?

"February festival, everything is surprised, surprised for thunder, so surprised for heaven and man. It is a stinger that runs away in fright. " Therefore, the solar term of shock refers to the temperature rising, the sky begins to thunder, and the insects hibernating underground are awakened by thunder, thus climbing out of the cave and starting to move.

Therefore, the solar term is a sign of rising temperature. It thunders because the temperature rises and the wet air on the ground rises. After encountering cold air at high altitude, it becomes a cumulonimbus cloud. After the clouds of different electrodes collide with each other, the instantaneous discharge phenomenon is lightning. Thunder and lightning occur at the same time, but lightning travels fast, which leads to seeing lightning first and then hearing thunder. People living in the plain have a saying: "sting first and then sting, people will eat dog food." That is to say, if you hear thunder before the day of fright, it means that this year is fierce, the harvest is not good, people are short of food, and even forced to compete with dogs for food. Another folk song "Before the thunder, the clouds can't open for forty-nine days" explains this, which means that if the thunder occurs before the thunder, it means that there may be abnormal weather that continues to be rainy and disastrous, which will not only delay the best time of spring sowing, but also lead to crop failure and people's life will be more difficult this year.