What are Dog Dogs and Ninety Nine? What is Three Nine Three?

In addition to paying attention to the solar terms that are most related to agricultural production, people also pay special attention to the hot and cold seasons of the year. Among them, the dog days and ninety-nine are such special cases that are noted. In Su Dongpo's poem, there is a sentence "Counting the ninety-nine without many days", which means that the ninety-nine is almost over.

In the book "Imperial Scenery and Things", there is also a record of "Ninety-Nine Chilling Pictures". The content is that the winter solstice day painting 1 plum branch, there are 81 petals, 1 petal dyed a day, and the 99 is over when the dyeing is finished.

Ninety-nine is counted from the day of the winter solstice, and each nine has 9 days; Nine hundred and eighty-one days are over, almost March 12 (March 11 in leap year), and another 9 days is the spring equinox, so there is a saying that "ninety-nine plus one-nine, ploughing cattle everywhere".

The saying "Fu Sun" has been around since the Spring and Autumn period at the latest. "Historical Records" has such a sentence as "the beginning of the second year of Degong (676 BC)"; In the Tang Dynasty, there was a book called "Beginner's Record" that explained the three dogs very clearly, saying that after the summer solstice, the third Geng was the first volt, the fourth Geng was the middle volt, and the first Geng was the latter after the beginning of autumn, which was called the three volts. The calculation of the sun is not as simple as that of the ninety-nine, and it has some changes, so people often ask the question, that is, how is the dog day presumed to be three?

Why do some years have 20 days in the middle and others have only 10 days? In fact, the calculation of the volt day is not difficult, in ancient times, it was based on the day of the Ganzhi, and it has long been stipulated in history, the third Geng day after the summer solstice is the first volt, the fourth Geng day is the middle volt, and the first Geng day after the beginning of autumn is the end. In this way, the first and last volts are 10 days, and the middle volt is sometimes 10 days, sometimes 20 days, depending on the stem branch of the summer solstice.

For example, in 1977, the summer solstice was June 21, the Ganzhi was Jiyou, the 22nd was the first Gengxu day, the third Geng day was July 12, and the Ganzhi was Gengwu, so this day was the beginning of the head and the volt. The fourth Geng day is July 22, and the Ganzhi is Gengchen, which is the beginning of the middle ambush. The beginning of autumn is August?

Day, the first Gengzi day after the beginning of autumn is August 11, Gengzi, this day is the end of the volt, so there are 20 days in the middle of 1977.

After the winter solstice, it begins to enter the coldest season of the year, so everyone can understand that Jiujiu is counted from the winter solstice. It is directly related to the change in the position of the sun. As the saying goes, the heat is in the middle and the cold is in the three-nine.

This is based on people's actual experience. Zhongfu and Sanjiu are almost around 20 days after the summer solstice and winter solstice, and it is in line with the actual climate. As for the question of why Fu Ri should be determined by Geng Ri, there is a historical development process.

The ancient Five Elements Doctrine was more popular, and it reflected a change in the Five Elements. Although this idea has no scientific significance here, it has been used to this day because its changes can not exceed the range of 10 days, and can still basically reflect the law of climate change.

Ninety-nine-eighty-one, it should be thirty-nine,

It means that Sanjiu and Sanfu are the coldest and hottest times of the year, and diligent people are exercising at such extreme temperatures.

"Three dog days" is the first day of the summer solstice (June 21 or 22 of the solar calendar), the fourth day of the dog day is the middle day (some years are ten days, some years are twenty days), and the first day of the beginning of autumn (August 7 or 8 of the solar calendar) is the three dog days, with ten days. In this way, the dog days have a fixed date. According to this regulation, it can be calculated that Futian is from mid-July to mid-August in the solar calendar.

The 39th day refers to the third day from the winter solstice"Nine days", that is, the 19th-27th day after the winter solstice. For the Chinese lunar calendar"Ninety-nine"to calculate the season, the winter solstice is"One nineteen days"The first day, one every nine days"Nine", the first nine days are called"Nineteen", the second nine days called"Twenty-nine", and so on, and the coldest time of the year is"Thirty-nine days"。

Practicing Sanjiu in winter and practicing Sanfu in summer is the experience summed up by the predecessors in the process of long-term training, and there is a certain scientific truth. For example, exercising in severe cold weather can increase the body's resistance to cold evils and prevent the occurrence of common winter diseases; Exercising in hot weather can improve people's heat tolerance, so that the body can better adapt to the hot natural climate, so as to achieve the purpose of disease prevention and fitness.

The 39 days refer to the period when the weather turns cold at the beginning of the winter solstice. Dog days are the hottest time of the year. Between the big and small heat.

The 39 days refer to the coldest day of the year, and the dog days refer to the hottest day of the year, which is calculated according to the traditional Chinese calendar.

Sanfu is from mid-July to mid-August, which is basically the most lively month of the year.