We know that during the spring and autumnal equinoxes, the length of daylight is equal to the length of night. Do the days start to get longer after the winter solstice? Here’s some basic knowledge about the solar terms! The eleventh month of the lunar calendar is the first month of winter every year, which means the arrival of winter. Come to Mr. Shui Mo's website to learn about the relevant content of the eleventh month of the lunar calendar in 2019!Do the days start to get longer after the winter solstice?——Yes, after the winter solstice: the daytime hours begin to gradually get longer.《1》The winter solstice is around December 22 every year. At this time, the sun is at 270 degrees of ecliptic longitude and the sunlight almost directly hits the Tropic of Capricorn. After the winter solstice, the point of direct sunlight begins to move towards the northern hemisphere, the days gradually become longer, and the nights gradually become shorter. 《2》After the winter solstice, although the days gradually become longer and the nights shorter, in the short term the days are still short and the nights are long. The heat absorbed by the ground every day is still less than the heat lost, so the temperature does not rise immediately. 《3》People are used to counting the nine days starting from the winter solstice, with every nine days being a "nine". Around the 39th day of the coldest winter, the ground stores the least heat and the weather is the coldest, so it is said that “the coldest day of the coldest winter”. ——Winter Solstice Taboos: In Hangzhou, Zhejiang, it is taboo to sweep the floor on the winter solstice. Locals will sweep the floor inside and outside the house on the night before the winter solstice, which is called "sweeping the floor of the previous year". The elderly and children in Huzhou have to go to bed early. It is said that the night of the winter solstice is when the yin energy is the heaviest, while the elderly and children lack yang energy and must avoid it, otherwise it will be unfavorable. Basic knowledge about solar terms!——Twenty-four solar terms:Beginning of Spring, Rain Water, Waking of Insects, Vernal Equinox, Qingming Festival, Grain Rain, Beginning of Summer, Grain Full, Grain in Ear, Summer Solstice, Lesser Heat, Greater Heat, Beginning of Autumn, End of Heat, White Dew, Autumnal Equinox, Cold Dew, Frost Descent, Beginning of Winter, Light Snow, Heavy Snow, Winter Solstice, Lesser Cold, Greater Cold. ——Meaning explanation: The "Twenty-Four Solar Terms" guide traditional agricultural production and daily life, and are an important part of China's traditional calendar system and its related practical activities. In the international meteorological community, this time cognition system is known as "China's fifth invention." ——Division of solar terms: The division of the 24 solar terms fully takes into account the changes in natural phenomena such as seasons, climate, and phenology. 》For example, the beginning of spring, beginning of summer, beginning of autumn, and beginning of winter reflect the seasons; for example, the spring equinox, autumnal equinox, summer solstice, and winter solstice reflect the altitude of the sun 》The winter solstice is the day when the sun is the lowest in the year, while the summer solstice is the day when the sun is the highest. In addition, the day is the longest and the night is the shortest on the summer solstice. On the contrary, the day and night are equal on the spring and autumn equinoxes. The Great Heat, Lesser Heat, Great Cold and Lesser Cold reflect the degree of heat, etc. |
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