is one of the twenty-four solar terms. It's cold when it's cold, but we don't know much about it. Let's learn about it today! So what is the origin of the great cold? Is the great cold the last solar term? Next, let's follow the old yellow calendar of this issue and have a look!
you may be interested in: what soup does the great cold drink to replenish air and warm up? What is the origin of the great cold? The great cold is the last of the twenty-four solar terms. It is "great cold" when the sun reaches 300 ° of the yellow meridian around January 20 every year. Great cold means that the weather is extremely cold. According to the three rites and righteousness sect quoted in the general examination of timing · Tianshi: "the severe cold is the severe cold in the middle, which is shaped in the slight cold, so it is called great... The reverse pole of the cold is called severe cold." at this time, the cold wave moves South frequently, which is a cold period in most parts of China in a year. The wind is strong, the temperature is low, and the snow does not melt, showing a severe cold scene of ice, snow and cold. In ancient China, the great cold was divided into three periods: "one is chicken milk; the second is bird disease; the third is water and strong abdomen." that is, when it comes to the solar term of the great cold, you can hatch chickens; However, birds like hawks and falcons are in a state of strong predation ability. They hover in the air looking for food everywhere to supplement their body energy and resist the cold; In the last five days of the year, the ice in the water is frozen to the middle of the water, and it is the strongest and thickest.,
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the cold atmospheric circulation is stable, and the circulation adjustment cycle is about 20 days. During such circulation adjustment, there are often large-scale rain and snow weather and strong wind cooling. When there is a long wave ridge west of 80 degrees east longitude and a large coastal trough in East Asia, China will experience sustained low temperature under the control of northwest wind flow and the influence of continuously replenishing cold air.and
are the last solar terms: Yes, there are twenty-four solar terms, namely, spring: beginning of spring, rain, waking insects, spring equinox, Qingming and Gu Yu; Summer: beginning of summer, Xiaoman, grain in ear, summer solstice, slight heat and great heat; Autumn: beginning of autumn, summer, white dew, autumnal equinox, cold dew and frost; Winter: beginning of winter, light snow, heavy snow, winter solstice, light cold, heavy cold. Different festivals reflect different phenology. Great cold is the last of the twenty-four solar terms. It reflects the change of temperature. According to the book of three rites and righteousness, "great cold is the middle, and it is shaped in the light cold, so it is called great cold. Since the beginning of November 1, the Yin Qi goes out of the place, and the cold Qi is on the top, so it is called great cold."
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"On the day of the great cold, the sun reached 300 degrees of the Yellow meridian. At noon, the solar shadow was measured with a guibiao. The shadow length was one foot one foot eight minutes, which was equivalent to 2.74 meters today. Compared with the longest time of the winter solstice, it was much shorter, indicating that the sun had obviously shifted northward. At night, the handle of the Big Dipper pointed to the ugly position, that is, north by East. At this time, it is December of the lunar calendar, also known as the ugly month and the twelfth month. The twelve message hexagram is a temporary hexagram. The hexagram has four Yin and two Yang, indicating that the underground Yang Qi has picked up.and
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