We can't fight more. If we fight more, we will be militarized and our country will be destroyed. But if there is no war, there will be a military parade. "Zhouyi" said: "wear frost, ice to. As the frost has fallen, it will soon freeze. Think of danger in safety. Military parade is not only a means of "intimidating" but also a way of reminding ourselves not to be lazy.
So, the folk had such a custom again - on the night before the frost, people would put some peeled chestnuts beside the pillows, and then they would eat them immediately when the cannon rang the next morning. It is said that eating chestnuts at this time will become more powerful.
The origin of frost seasonWith such a custom of waiting for the day and preparing for the future, people have solemnly passed the last solar term of autumn.
Frost is one of the twenty-four solar terms. On October 23 of the Gregorian calendar every year, it means that the weather is getting colder and the first frost appears. Since it's autumn, why is frost falling? How did the frost come? Let's talk about the general knowledge of frost.
Every year around October 23 of the solar calendar, when the sun reaches 210 degrees of the Yellow longitude, it is the frost in the 24 solar terms. Frost is the last solar term in autumn and the transitional solar term from autumn to winter. In the late autumn, there is a lot of heat dissipation on the ground, and the temperature suddenly drops below 0 ℃. The water vapor in the air condenses directly on the ground or plants to form fine ice needles, some of which become hexagonal frost flowers, white in color and loose in structure.
"The moon makes seventy-two waiting for the solution" said about Frost: in September, the air is solemn and condensed, and the dew knot is frost. "Frost" means that the weather is getting colder and the dew condenses into frost. In ancient China, frost fall was divided into three periods: first, jackals were sacrificed to animals; second, plants and trees were yellow; third, stingers and insects were salty. The jackals began to capture prey, sacrifice animals, sacrifice animals to heaven, and offer sacrifices to autumn gold. The leaves on the earth were withered and yellow, and all the jellyfish were still in the cave, hanging their heads to enter.
Frost is formed by water. How can water form frost? Lu benzhong, a poet of the Southern Song Dynasty, wrote in "nangezi Lvsi" that "Posthouse invades the slanting moon, and Xiqiao spends the night frost." Lu you wrote in "frost moon" that "withered grass, frost and white flowers, new shadow of the cold window and moon." It shows that frost appears on a clear moon night in autumn. There is no cloud in autumn evening. The ground is like uncovering quilt. There is a lot of heat dissipation, and the temperature suddenly drops below 0 ℃. A little water vapor on the ground will condense on the stream, bridge, leaves and soil, forming fine ice needles, and some will become hexagonal frost flowers. Frost can only be formed on a sunny day. People say that "strong frost and fierce sun" is the truth.