The purpose of social practice in modern history

The coldest solar term in a year is the great cold.

The Great Cold is the last of the twenty-four solar terms, and it is called "Great Cold" when the sun reaches 300 degrees of the yellow meridian around 65438+1October 20th every year. Great cold refers to extremely cold weather. Time-sharing, time-sharing, time-sharing and time-sharing quote three ritual meanings: "Great cold is the middle, and the upper form is slight cold, so it is called great cold ... extremely cold, so it is called great cold."

At this time, the cold wave frequently goes south, which is the cold period of the year in most parts of China. The wind is strong, the temperature is low, and the snow on the ground does not melt, showing a cold scene of ice and snow.

Extended data:

Solar terms in winter

Beginning of winter: the war refers to the northwest; The meridian of the sun is 225 degrees. The beginning of winter. Gregorian calendar165438+1October 7-8.

Xiaoxue: Fighting refers to yourself; The meridian of the sun is 240 degrees. This means it's starting to snow. Gregorian calendar165438+1October 22-23.

Heavy snow: fighting fingers; The meridian of the sun is 255 degrees. As the snowfall increases, there may be snow on the ground. Gregorian calendar 65438+February 6-8.

Solstice of winter: fighting fingers; The meridian of the sun is 270 degrees. The cold winter is coming. Gregorian calendar 65438+February 2 1-23.

Slight cold: fighting fingers; The meridian of the sun is 285 degrees. The climate began to get cold. Gregorian calendar 65438+1October 5-7.

Great cold: fighting refers to ugliness; The longitude of the sun is 300 degrees. The coldest time of the year. Gregorian calendar 65438+1October 20th -2 1.