Vernal equinox handwritten newspaper content
The content of the spring equinox handwritten newspaper is 1 vernal equinox, which is the midpoint of 90 days in spring. One of the 24 solar terms, around March 20 of the Gregorian calendar every year, when the sun is located at 0 (vernal equinox) of the yellow meridian. On the vernal equinox, the sun shines directly at the equator of the earth, and the seasons in the northern and southern hemispheres are opposite. The northern hemisphere is the vernal equinox and the southern hemisphere is the autumnal equinox. The vernal equinox is a new year in Iran, Turkey, Afghanistan, Uzbekistan and other countries, with a history of 3,000 years.
Twenty-four solar terms: "in mid-February, half a minute, that is, half of 90 days, so it is called minutes." Autumn is synonymous. " "Spring and Autumn Stories Yin and Yang in and out" said: "The vernal equinox, Yin and Yang are also half-phase, so it is cold and summer day and night."
The vernal equinox is also a festival and ritual celebration. 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:
(1) Flying kites, women and children flying kites. And write a blessing on the kite, hoping that the gods in the sky can see it.
(2) Drinking with flowers: men, women and children wear flowers.
(3) Picking wild vegetables in the wild: Zhu's "Ten Miscellaneous Books in Spring": I am not in the mood to pick wild vegetables when writing and playing the piano. In terms of diet, there are spring vegetables, spring soup and spring wine.
Definition:
The vernal equinox usually refers to the moment when the sun's ecliptic is at 0, which is around February 15 of the lunar calendar every year (March 20-2 1 of the Gregorian calendar).
In the time period, it also refers to the position of the sun between 0 and 15, that is, from the vernal equinox to Tomb-Sweeping Day, and the Gregorian calendar is between March 20th and April 5th.
Astronomical phenomena:
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 (regardless of the refraction of sunlight by the atmosphere and the shadow in the morning). After the vernal equinox, the direct point of the sun continued to move from the equator to the northern hemisphere, and the northern hemisphere began to have long days and short nights (long days and short nights), while the southern hemisphere began to have short days and short nights (short days and short nights). Therefore, the vernal equinox is also called the ascending equinox.
At the North Pole and the South Pole, at the vernal equinox, the sun is on the horizon all day. After that, as the direct point of the sun continued to move northward, a six-month polar day began near the North Pole, and the scope gradually expanded; A six-month polar night began near the Antarctic, and the scope gradually expanded.
It is worth noting that the days in the northern hemisphere become longer and longer from the winter solstice, but from the vernal equinox, the days are longer than the nights. From the summer solstice, the days become shorter and shorter, but from the autumn equinox, the days are shorter than the nights.
The reason is that from winter to the sun, the sun shines directly on the Tropic of Capricorn, and the daytime is the shortest in all parts of the northern hemisphere. Then the point of direct sunlight began to move northward, and the days in the northern hemisphere became longer and longer. After the vernal equinox, the direct point of the sun moved to the northern hemisphere, and the phenomenon that the day is longer than the night began to appear in the northern hemisphere. From summer solstice, the sun shines directly on the Tropic of Cancer, and the days are the longest in all parts of the northern hemisphere. Then the direct point of the sun began to move south, and the days in all parts of the northern hemisphere became shorter and shorter. After the autumnal equinox, the direct point of the sun moved to the southern hemisphere, and the phenomenon that the day was shorter than the night began to appear in the northern hemisphere.
Calculation:
[Y*D+C]—L
Interpretation of the formula: the last two digits of the year are multiplied by 0.2422 plus 20.646, and the leap year is subtracted from the integer, and the c value of 2 1 century vernal equinox is 20.646.
For example, the date of 1992 vernal equinox = [92× 0.2422+20.646]-[92/4] = 42-23 = 19, and March19 is the vernal equinox.
Exception: calculation result in 2084 plus 1 day.
Content 2 Every year on the vernal equinox, tens of millions of people all over the world are doing "vertical egg" experiments. How this toy, called "China Customization", became a "world game" is still difficult to verify. However, the game is simple and interesting: choose a smooth and symmetrical fresh egg that has just been born for four or five days, gently stand it up and put it on the table. Although there are many losers, there are also many winners. The vernal equinox has become the best time for vertical egg games, so there is a saying that when the vernal equinox arrives, the eggs will be beautiful. The eggs that stand up are very beautiful.
The mystery of vertical eggs
Why do eggs stand easily at the vernal equinox? Although there are many sayings, there are many scientific reasons. First of all, the vernal equinox is a day with the same length of day and night in the northern and southern hemispheres. The inclination of the earth's axis is 66.5 degrees, which is in a relatively balanced state with the earth's orbital plane around the sun, which is beneficial to vertical eggs. Secondly, the vernal equinox is in the middle of spring, which is lukewarm, colorful, comfortable, quick-thinking, agile and easy to succeed in laying eggs. More importantly, the surface of the egg is uneven and there are many protruding "hills". The height of "mountain" is about 0.03mm, and the distance between peaks is 0.5-0.8mm. According to the principle that three points form a triangle and a plane is determined, as long as three "mountains" and the triangle formed by these three "mountains" are found and the center of gravity of the egg passes through this triangle, the egg can stand upright. In addition, it is best to choose eggs 4-5 days after birth, because at this time, the yolk of the egg is slack, the yolk sinks, and the center of gravity of the egg drops, which is conducive to the erection of the egg.
Vertical egg not only has many scientific principles, but also contains many rich and profound philosophical thoughts. Columbus, a famous Italian navigator, crossed the vast Atlantic Ocean and discovered the new American continent. Some people think that his discovery is "purely accidental". At a celebration meeting, Columbus suggested that the ladies and gentlemen attending the party try to stand the eggs on the table, but none of them succeeded. Columbus said, watch me perform. He knocked down the egg, the shell broke and the egg stood up. Then he said, I found this. This is really easy, but why don't you?
The well-balanced and smooth curve of an egg is the reason why it is difficult to stand up, and it is also its charm. Leonardo da vinci, a famous European Renaissance painter, spent more than two years forgetting to eat and sleep, and practiced drawing egg curves every day, which laid a solid foundation for his later success in shaping the mysterious smile of Mona Lisa. In China, people call face shape "face shape" and take egg shape as the standard of face beauty, which fully shows the superb aesthetic appreciation level of our people and the aesthetic attributes of egg shape. However, for a long time, people have been unable to find the mathematical expression of the egg-shaped curve, and even mathematicians can only approximate the egg-shaped curve with rulers and compasses. No wonder artists who have painted thousands of egg circles also say that no two are exactly the same. Until modern times, mathematicians discovered the following mathematical equation of egg curve: x 2/a 2+y 2/(ky+b) 2 =1,in which | k |> 1 finally solved the problem of drawing egg curve for generations. Today, egg-shaped cars, airships, bridges, tunnels, gymnasiums, concert halls and other buildings can be seen all over the world, which perfectly combine science and culture, science and art, science and aesthetics.
The egg ball (three-dimensional egg circle) shown on the right is drawn by computer, and the specific equation is (x2+z2)/16+y2/(0.2y+5) 2 =1.
Eat spring vegetables:
Lingnan style
Kaipingcang Town used to have a custom of "eating spring vegetables at the vernal equinox", with one city and four cities (plus Heshan as five cities). "Spring vegetable" is a kind of wild amaranth, which villagers call "Artemisia chun". On the vernal equinox, the whole village went to pick spring vegetables. When searching in the wild, it is often green and thin, about the length of a palm. Picked spring vegetables are usually boiled with fish fillets at home, which is called "spring soup". There is a jingle that says, "Spring soup is dirty, and it washes the liver and intestines. The whole family is safe and healthy. " Since the spring of the year, people still pray for peace and health at home.
Send spring cattle
The vernal equinox is coming soon, and there will be a picture of spring cattle delivered door to door. The picture is printed with red paper or yellow paper on the lunar solar terms all the year round, and also printed with farmers' ploughing patterns, which is called "Spring Cattle Map". The people who send pictures are folk singers, who mainly say things like spring ploughing and auspiciousness that are not against the farming season. Every time they go to a house, they say whatever they see until the owner is happy to give money. Although the words spoken are casual, every sentence rhymes beautifully. Commonly known as "spring", spring people are called "spring officials".
Sticking sparrow's mouth
According to custom, farmers have a holiday on the vernal equinox. Every family should eat dumplings, cook a dozen or twenty or thirty dumplings without wrapping them, and put them on the outdoor ridge beside the field with thin bamboo forks, which is called sticking sparrows' mouths, so as not to destroy crops.
fly a kite
The spring equinox is also a good time for children to fly kites. Especially at the vernal equinox. Even adults are involved. Kites are divided into Wang Zi Kite, Silver Carp Kite, Myxomoth Kite, Leigong Kite and Moon Light Kite. The biggest kite is two meters high, and the smallest one is two or three feet. There are kites on the market, many of which are smaller than others' and suitable for children to play with, but most of them are posted by themselves, and the bigger ones have to compete with each other to see which one flies high.
the Spring Festival; Chinese New Year
At the vernal equinox in February, people began to sweep graves to worship their ancestors, also known as the Spring Festival. Before sweeping the grave, a grand ancestor worship ceremony should be held in the ancestral hall, pigs and sheep should be slaughtered, drummers should be invited to play, and the ritual students should read the eulogy and quote three praises. At the beginning of the spring equinox, the graves of ancestors and distant ancestors are swept first, and the whole family and the whole village have to be dispatched on a large scale, and the team often reaches hundreds or even thousands. After the ancestral graves of Kaiji and Yuanzu were swept, they were divided into rooms to sweep the graves of ancestors in each room, and finally each family swept the graves privately. In most Hakka areas, ancestor worship and grave sweeping in spring begin at the vernal equinox or earlier, and must end in Tomb-Sweeping Day at the latest. There is a saying everywhere that after the Qingming Festival, the tomb door is closed, and the ancestors' spirits are not needed.
worship
The folk festivals around the vernal equinox are February 15, Zhang Kai's birthday: Wang Sheng, also known as "Chen", was a warrior of the Tang Dynasty, Chen Yuanguang, who made great contributions to Zhangzhou and became the patron saint of Zhangzhou after his death. February 19 is the birthday of Guanyin Bodhisattva. Every birthday, many believers will go to Guanyin Temple to worship. On February 25th, Sanshan King Sacrifice Day: Sanshan King refers to Dushan, Mingshan, Jinshan and other mountain gods in Jieyang County, Chaozhou Prefecture, Guangdong Province. In the early years, Chaozhou Hakka immigrants were the patron saint, so the believers were mainly Hakkas.
festival
In the Zhou dynasty, there was a ceremony to worship the sun at the vernal equinox. Book of Rites: "Altar." Ying Da Shu by Confucius: "Also called vernal equinox".
Ritan is located in the east of Ritan Road in the southeast outside Chaoyangmen, also known as Asahi altar. It is the place where emperors of Ming and Qing Dynasties offered sacrifices to Daimyojin (the sun) at the vernal equinox. Asahi is set at the beginning of the vernal equinox. Every year, A, C, E, G and Ren are sacrificed by the emperor himself, and the rest are sacrificed by officials.
Most places where ancient emperors offered sacrifices to the sun were located in the suburbs of Beijing. There was an altar in Beijing in the Yuan Dynasty. This altar in Beijing was built in the 9th year of Jiajing in Ming Dynasty (A.D. 1530). It is surrounded by a square outer wall. Before each sacrifice, the emperor would come to the clothing hall of Beitanmen to rest, then change into clothes and go to the Asahi altar for sacrifice. Asahi altar is located in the south of the whole building, facing east and west. This is because the sun rises in the east, and people have to stand in the west and salute the east. The altar is round, 1 floor, with a diameter of 33. 3 meters, surrounded by short walls, with 1 gate in the east, south and north. To the west is the main entrance, and there are three star gates to show the difference. In the middle of the wall, a square platform is built with white stone, which is called the altar, and the height is 1. 89 meters, 64 meters in circumference. After the completion of the Ming Dynasty, the altar was made of red glazed tiles, symbolizing the sun in Daimyojin. This was originally a romantic arrangement, but in the Qing Dynasty, it was paved with square bricks, and the altar was inferior.
Although the memorial day is not as good as the ceremony of offering sacrifices to heaven and earth, the ceremony is also quite grand. When the Ming emperors offered sacrifices to the Japanese, they performed three rites, seven songs, eight dances, three kneels and nine bows. The ceremonies of the emperors in the Qing Dynasty offering sacrifices to the sun included welcoming the gods, offering jade and silk, first offering, first offering, last offering, blessing, car dealership, sending gods and meteors, which were also very grand. Today's altar has bid farewell to the era of offering sacrifices to the sun and worshipping God, and has become a park for people's leisure and entertainment.