What is the principle of Zhuge Liang s borrowing of the east wind?

The truth of "borrowing" the east wind is actually a small high pressureChibiIt forms to the west and gradually moves eastward. When this anticyclone passes over the Chibi area, the Chibi area is affected by it, and it is foggy at night and sunny during the day.

When this anticyclone moved to the east of the Chibi area, the southeast wind prevailed in the Chibi area. Dongfeng also "borrowed" it.

In summary, there are two possibilities:

1. Since atmospheric movements are complex and changeable, it is likely that a small low pressure occasionally appeared in the west of the Chibi area. Northern Hemisphere.

The low pressure is a cyclone, and the air flow flows counterclockwise. In this way, the southeast wind blows right in the eastern part of the low pressure Chibi.

2. It is also possible that there was a small high pressure in the east of Chibi. The high pressure in the Northern Hemisphere is an anticyclone, with clockwise air flows.

Outflow. In this way, the southeast wind is blowing in the Chibi area in the western part of the high pressure.

Borrow the east wind

"Romance of the Three Kingdoms" originally belonged to **, this paragraph of Zhuge Liang.

There are two views on the practice of the altar borrowing the east wind in later generations:

One side believes that Zhuge Liang borrowed the east wind with magic in the book, and the author compiled it to create a plump and clever character image;

On the other hand, the other side believes that the book does not actually directly state that Zhuge Liang borrowed the east wind with magic, but only with rich meteorology.

Knowledge ** will have an east wind, so Zhuge Liang is just pretending to use spells on the Seven Star Altar, and at the same time shocking Jiangdong.

First of all, it is stated that Zhuge Villager has nothing to do with Dongfeng. This east wind is a weather phenomenon in the area of Boyang Lake on the Yangtze River, there will be a small spring in winter, at this time because the temperature of the Yangtze River is different from the lake, the southeast wind will be formed, you can check it yourself, and Zhuge Liang lives in the Jingxiang area, it is impossible to know, but Zhou Yu and Huang Gai have been training sailors here for a long time, and according to long-term experience, it is not the same Zhuge Liang can borrow the east wind in the Romance of the Three Kingdoms.

Zhuge Liang was a farmer before he came out of the mountain, farmers watched the sky to eat, sowing in spring and hiding in winter, and there was no better understanding of the changes of the four seasons than farmers, so he naturally understood the laws of weather operation, and if he knew the rules, he knew when the wind would blow and when it would rain.

The science is like looking at the weather in the next few days.

Is this true, if you have to say that Kong Ming is the most suitable to be a weather forecaster...

The principle of Zhuge Liang borrowing the east wind is as follows:

Zhuge Liang chose to borrow the east wind on November 20 of that year, in ancient times there was a summer solstice and a yin birth, and the winter solstice was a yang birth, and November 20 of that year was the day of the winter solstice. Zhuge Kongming mastered this law of change and accurately grasped the timing of the east wind.

In addition, Zhuge Liang's hometown was not far from Chibi at that time, so compared with Cao Cao, he was able to have a more accurate grasp of the local solar terms, so it was able to accurately change the direction of the wind, so the act of borrowing the east wind can be regarded as Zhuge Liang's knowledge and practice combined.

Summary

Although there are still people who think that Zhuge Liang really knows the art of Qimen Dunjia, so that he can borrow the east wind, but as everyone knows, Qimen Dunjia also has its own knowledge theory and practice, which integrates Zhou Yi, astronomy, geography, military, calendar and other knowledge, and is not a strange immortal art.

Therefore, Zhuge Liang's behavior of borrowing the east wind should not be regarded as some special function or immortal spell, but the result of long-term research on astronomy, geography, and meteorology.

The Zhuge sacrifice wind in the Three Kingdoms Burning Chibi Righteousness was fictionalized by Luo Guanzhong to show Zhuge Liang's wisdom, the burning of Chibi is indeed a thing, and Zhuge Liang does have merit, he is not borrowing the east wind, but accurately predicting the appearance of the east wind.

He knew astronomy and geography, and at that time, it was the turn of the seasons, and Zhuge Liang calculated the time of the east wind like a weather forecast, so that Zhou Yu could seize the opportunity to burn Chibi and contribute to the success of the war.

With rich meteorological knowledge, there will be an east wind, so Zhuge Liang is just pretending to use spells on the Seven Star Altar, and at the same time shocking Jiangdong. The book mentions that the practice of borrowing the east wind is also said in the dialogue through the mouth of the character, and there is no author's narrative that directly confirms that it is a spell.

The impact of the Battle of Red Cliffs:

The defeat in the Battle of Chibi made Cao Cao lose the possibility of unifying the whole country in a short period of time, and Sun and Liu took advantage of this victory to begin to develop and expand their respective forces, Liu Bei borrowed Jingzhou from Sun Quan after the rapid growth of strength, and then sought to seek Yizhou, Sun Quan repeatedly personally led the army to attack Hefei, several battles were unfavorable, and the army was lost. After Cao Cao retreated to the north, he recuperated for two years.

Two years later, Cao Cao marched westward, defeating Ma Chao, Han Sui and others in Guanzhong, and then marched south to conquer Sun Quan. This battle formed the prototype of the world's three divisions and laid the foundation for the establishment of the three kingdoms.

"Borrowing the east wind" is in line with the principle of meteorology in the battle of Chibi, the east wind played a great role, the Tang Dynasty poet Du Mu has two famous poems: "The east wind is not with Zhou Lang, and the copper finch is deep in the spring and locks the two Qiao." It means that thanks to God lent the east wind to Zhou Yu, so that he could act conveniently, otherwise Sun Ce's wife Da Qiao and Zhou Yu's wife Xiao Qiao would be caught by Cao Cao and taken to Tongquetai.

In the Peking Opera "Heroes", Cao Cao has a lyric: "I only say that the east wind is rare in November." It shows that Cao Cao also regrets his mistake in judging the weather and suffered a big loss.

However, the legend of Zhuge Liang's "borrowing the east wind" is considered by some people to be fictional after research. However, judging from the Battle of Chibi, the Yangtze River was blowing southeast winds, and later Cao's army was defeated and encountered a downpour on Huarong Road.

Frontal cyclones are more common in China, with the most in spring and fewer in autumn. It is a deeply developed depression system with low air pressure in the center and high air pressure around it. The air flows from the periphery to the center, rotating in a counterclockwise direction.

So, where it is in the front part of the cyclone (i.e., east), a southeast wind blows; Behind the cyclone (i.e. west), a northwesterly wind blows. Convergence updrafts prevail inside the cyclone, which can form large areas of rainfall. Therefore, when the southeast wind blows continuously, it is often a sign that the weather is about to deteriorate.

There is a weather proverb that says: "The southeast wind and rain are ancestors, and the northwest wind is empty." This means that "the east wind and rain, the west wind is clear" has a certain practical significance.

In addition, some people analyze the east wind "borrowed" by Zhuge Liang in this way: from the modern weather map, it can be seen that when a place is affected by a moving closed center of high pressure, the wind direction rotates clockwise. When the cold high pressure moves oversea, the southeasterly winds prevailing behind the high pressure will temporarily control the middle and lower reaches of the Yangtze River.

Because the cold high pressure moves rapidly in the process of southward movement in winter, and the last cold air that follows the southward invasion soon arrives, the southeast wind lasts for a short time and is often ignored. Zhuge Liang, who is familiar with astronomy and geography, lives in Nanyang, not far from Chibi, and can grasp the signs before the southeast wind appears, so he accurately made a medium-term weather forecast.

In fact, the climate probability is only 3%, so it seems that Zhuge Liang in November at the beginning of winter, according to the weather changes in the middle and lower reaches of the Yangtze River at that time, there will be a southeast gale, and further inferred that the weather will deteriorate, which is in line with the law of weather evolution.

However, according to the meteorological data of Chibi in the past 30 years, the author found that in fact, the probability of the southeast wind is only 3%, the probability of the south wind is 4%, the probability of the east wind is 7%, and the total of the three wind directions is only 14%. The prevailing wind direction in November is northeasterly, with a lesser chance of southeasterly winds. It can be seen that the historical event of Zhuge Liang's "borrowing the east wind" is in line with the law of weather evolution, but the probability of climate generation is very small.

The author believes that the historical event of "borrowing the east wind" is not only an objective fact, but also the result of the brilliant writing of the literati.