When is the Great Cold? What's the point?
The arrival of the Great Cold season is also the coldest time. So when is the Great Cold? What's the point? Let’s take a look at the following content!When is the Great Cold?Solar term: Wednesday, January 20, 2021 Time: January 20-21 of the Gregorian calendar Climate characteristics: Dahan is the coldest time of the year.During the Great Cold, the sun's ecliptic longitude is 300°. Great Cold means that the weather is extremely cold. The period around the Great Cold is the coldest season of the year. The Great Cold occurs just after the 39th day of winter and at the beginning of the 49th day of winter. As the saying goes: "In the 39th and 49th days of winter, walk on the ice." What's the point?Dahan is a solar term that reflects the process and degree of temperature rise and fall.Originally, during the winter solstice, the sun is directly above the Tropic of Capricorn. my country, which is located in the northern hemisphere, has the shortest day and the longest night. The ground receives the least light and heat, and the weather should be the coldest. However, it is actually the coldest during the Lesser Cold and Greater Cold festivals after the winter solstice, which is the so-called "Coldest in the 39th day". This is because, during the Great Cold Festival, although the days are slightly longer than those during the Winter Solstice, they are still short and the nights are long. The heat radiated by the sun to the ground is less than the heat emitted by the ground into the air, so the temperature continues to drop. In addition, at this time, cold waves from the Polar Regions, Siberia, and the Mongolian Plateau frequently move southward, constantly invading large areas of my country, promoting the lowest temperature of the year. What fruits are good to eat during the Great Cold1. PearIn winter, dry lips, thirst and dry skin are most likely to occur. Chinese medicine believes that pears are slightly cold in nature and sweet in taste, and can produce fluid to quench thirst, moisten dryness and resolve phlegm, and moisten the intestines and promote bowel movements. Now is the season for eating pears. Pears are known as the "king of fruits" and their pear juice has a unique therapeutic effect on autumn and winter dryness. It is especially suitable for people who suffer from internal heat in winter. 2. Persimmon The vitamins and minerals in persimmons are beneficial to beauty. The vitamin C content in persimmons is 10 times that of apples, which can prevent colds. They are also rich in vitamin A, which can prevent various eye diseases. Secondly, tomatoes are rich in carotene. Every 100 grams of tomatoes contains 139 mg of carotene, which is 13 times that of peaches and 2 times that of melons. Carotene can prevent aging and fight cancer. |
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