Introduction to the origin of the vernal equinox How did the vernal equinox solar terms come from?
Brief introduction to the origin of vernal equinox
Every year on March 20th of the Gregorian calendar, when the sun is located at 0 (vernal equinox), it is the vernal equinox. On this day, the sun shines almost directly on the equator of the earth, and the whole world is almost as long as day and night.
The vernal equinox was also called "Japan-China", "Day and Night Equinox" and "Midspring Moon" in ancient times. "Li Mingshi Yi" said: "The dividing line, the turn of Huang Chi, the sun stops here, and the day and night are equally divided." Therefore, the significance of the vernal equinox, first, refers to the equal division of day and night, each of which is 12 hours; Second, in ancient times, it was spring from beginning of spring to long summer, and the vernal equinox happened to be in the three months of spring, and spring was equally divided.
In ancient China, the vernal equinox was divided into three periods: "First, waiting for the arrival of birds; Second, wait for Lei Nai to make a sound; Third, wait for electricity. " In other words, after the vernal equinox, swallows will fly from the south, and when it rains, the sky will thunder and lightning. The vernal equinox is recorded in the ancient calendar of China: "Three days before the vernal equinox, the sun entered the equator".
How did the vernal equinox solar terms come from?
The vernal equinox is a festival and a ceremony. The ancient emperors had a system of offering sacrifices to the sun in spring and the moon in autumn. The ritual of the Zhou Dynasty was to offer sacrifices on the altar. Book of Rites: "Altar." Ying Da Shu by Confucius: "Also called vernal equinox". In the Qing Dynasty, Pan Rongbi wrote "Ji Sheng at the age of Emperor Jingdi": "The vernal equinox and autumn are divided into national gifts, and scholars should not worship them.
Folk activities are generally considered as the official start of an outing. Activities include: flying kites, women and children flying kites. And write a blessing on the kite, hoping that the gods in the sky can see it. Second, drink flowers: men, women and children should spend. Picking wild vegetables in the wild: Zhu's "Ten Miscellaneous Books in Spring: Writing and Playing the Piano" unintentionally inserted willows. In terms of diet, there are spring vegetables, spring soup and spring wine.
What are the three stages of the vernal equinox?
The vernal equinox has three stages. On the vernal equinox, the mysterious bird came. On the fifth day, Lei Nai made a sound. On the fifth day, he generated electricity. That is to say, there is a wait every five days, and the vernal equinox time is from March 20th to 2 1 day in the solar calendar every year, so we can add five days to this time to calculate the time of each of the three vernal equinox cycles.
After a while, the mysterious bird came: Yan Lai came, too.
Secondly, Lei Nai made a sound: the voice of Lei Naiyang, which could not go out in the shade, was excited by Lei Nai.
Third, the first electricity: electricity is the light of the yang, the light is invisible when the yang is weak, and the yang is restrained in the yin. Its light is hair, so it begins to lightning.
Is it warm in the vernal equinox?
With the arrival of the vernal equinox, the temperature begins to rise, and the weather is no longer cold, but we should guard against the occurrence of "late spring cold".
The spring equinox solar terms, after the shocking solar terms, mean that the weather is no longer cold, and most areas are in bright spring. At this time, day and night are equal, but they can't completely relax, and there is still the possibility of cold spring.
During the vernal equinox, the daily average temperature in all parts of China rose steadily to above 0℃ except the alpine mountain area and the area north of 45 north latitude. At this time, the cold has passed and the temperature has risen rapidly, especially in North China and Huanghuai Plain. The daily average temperature rises to above 10℃ almost at the same time as the rainy areas along the Yangtze River and the south of the Yangtze River, entering a bright spring. On the vast land, on the bank of willow green, the grass grows in Fei Ying, the wheat is jointing, the rape blossoms are fragrant, the peach blossoms are red, and Li Bai is coming in spring. South China is a scene of late spring.
Around the vernal equinox, the temperature will rise sharply. Take the north as an example, the temperature will hover around 10 degrees, but there is an accident this year, which is the El Niñ o phenomenon. This year's temperature will be 1 to 2 degrees higher than in previous years, especially in the northeast, so the temperature is still relatively warm around the vernal equinox, but sometimes it suddenly turns cold in spring.
How to keep healthy in the vernal equinox and solar terms
1, it is not advisable to reduce clothes too early at the vernal equinox.
At the vernal equinox, the snow and ice melt and the vegetation recovers. Whether in the north or in the south, it is a good time for spring. The average temperature in China is stable at 65438 00℃. However, during the vernal equinox, the temperature difference between day and night is still large, and there are cold currents from time to time. Therefore, the public should not cut down on clothes too early to avoid catching a cold.
In addition, meteorological data show that during the vernal equinox, there are often low-pressure activities and cyclone development, low-pressure movements guide cold air south, and there is strong wind and sand blowing weather in the north. Astronomical experts reminded that at this time, the northern region should do a good job in dust prevention, properly arrange outdoor items susceptible to strong winds, cover building materials, and do a good job in sealing precision instruments. At the same time, the public should also prepare for wind and sand prevention when going out, close doors and windows in time, and wear dust-proof articles such as masks and scarves to avoid dust damage to eyes and respiratory tract.
2, the spring equinox diet should be sour and sweet to nourish the temper.
It is reported that there are many folklore about spring food, and Chinese medicine also pays attention to it, commonly known as eating "spring". Experts suggest that in this season, you can eat more sweets that tonify the spleen, such as red dates, honey, leeks and spinach, and eat less hot and sour food. In addition, nut foods such as walnuts, peanuts, almonds and peach kernels. It should be supplemented at least three times a week, which is helpful for refreshing and drying and eliminating itching. In daily lunch, it is also suitable to supplement stews, such as carrot sparerib soup, ginkgo black-bone chicken soup and so on. , can not only supplement the water needed by the human body in the seasonal change, but also increase the intake of protein, which helps to enhance the body's resistance.
3, vernal equinox disease from the details of prevention.
Traditional Chinese medicine believes that the unstable weather at the vernal equinox and the low temperature in the morning and evening will not only easily induce diseases among the elderly, the weak, the sick and the disabled, but also pay attention to the "sub-healthy people" who have been in a state of high-intensity work and high pressure for a long time, and suggest that citizens pay attention to adjusting their living habits in the future. If you go to crowded places as little as possible, you can use your living environment for simple fitness exercises, such as climbing stairs and skipping rope. It is not easy to exercise too early. You can rinse your mouth with light salt water when you wash in the morning. It is not easy to open the window too early for ventilation every day, and it is more suitable after 9 o'clock.