Thick black clouds are like ink splashed in the sky, gathering more and more, and becoming thicker and thicker.
Two thousand soldiers of the left guard stood neatly on the top of the mountain, standing solemnly and silently. However, they seemed to be as solid as a rock, but in fact, each of them was a little absent-minded. Dark clouds rolled and condensed above them like thick fog from hell.
The obvious moisture was touched sensitively, which made them very happy.
The severe drought since the beginning of spring has made spring plowing extremely unsatisfactory. Now that summer is approaching, not even a drop of rain has fallen, which means that the year's harvest will be ruined.
All the soldiers came from Guanzhong. They were soldiers during war and farmers during off-time. They had gray-haired elders at home and babies waiting to be fed. Without enough food, they could almost imagine the desolate scene they were about to face.
Gotta come out...
But now, the dark clouds above them are rolling like angry dragons, and it seems that in the next moment, there will be rain and a hearty rain!
The thirsty seedlings in the fields will greedily absorb the rainwater, grow vigorously, produce heavy ears of wheat, grind out the bran, and turn into food...
They don't know why they were sent here to cut down trees and clear the open space. The mountains of talismans and paper...
Everything is full of mystery.
Fang Jun stood in front of the barracks, happily looking at the thickening clouds in the sky, feeling the moist atmosphere carried by the south wind, but was splashed with cold water by Li Chunfeng beside him.
"The clouds are condensing and the water vapor is gathering, which is a sign of rain! It's a pity that the south wind is really strong. If the wind blows now, it is likely to rain immediately! But not only does the wind have no tendency to fade,
, On the contrary, it is getting more and more intense, maybe all the clouds in the sky have been blown away! It seems that Pindao’s guess is correct. There is a sign of water vapor condensation, but it is not enough to rain. Time is not waiting for us, and it is so short.
A little bit of God’s will…”
Li Daxian'er shook his head, feeling quite regretful.
The Taishi Bureau is not just a decoration. The best astrologers in the Tang Dynasty are gathered there. Not only can they formulate calendars by observing stars, but they are also good at predicting the weather based on changes in star clouds. As for the inference of this cloudy day but no rain,
The conclusion had been made as early as a month ago.
It is the large amount of water vapor brought by this southerly wind that causes the clouds to condense, but it is also this southerly wind that will blow away the dark clouds that it has gathered...
It can be said that the south wind leads to success and the south wind leads to failure!
But isn’t this the most unpredictable aspect of God’s will?
Fang Jun didn't seem to believe what he said, or was not shocked at all. Instead, he smiled and asked Li Chunfeng a question: "Daozhang Li, tell me, why is there rain in these clouds? Where does this rain come from? I'm warning you.
Ah, don’t talk nonsense with me about the Dragon Prince..."
This question obviously did not trouble Li Chunfeng, but his answer made Fang Jun completely drunk...
"When clouds gather, it rains, when clouds disperse, there is wind. Yin and Yang qi alternate between heaven and earth. When yin qi is strong, it rains, and when yang qi is strong, it is wind. How can you not understand such a simple truth?"
Li Chunfeng acted like a great Confucian, talked eloquently, and despised Fang Jun.
Fang Jun blinked, okay, this answer is very good and powerful, but he was speechless...
What should he say?
Could it be related to the formation process of precipitation?
In the clouds, with the continuous replenishment of water vapor in the air, the supersaturated water vapor continues to condense and sublimate on the cloud droplets, causing the cloud droplets to continue to grow. When the size of the cloud droplets reaches a certain level, due to the effect of gravity, the cloud droplets will
It starts to fall. During the falling process, the large cloud droplets fall quickly and the small cloud droplets fall slowly. Therefore, the large cloud droplets will catch up with the small cloud droplets and merge into larger cloud droplets. If this continues, the cloud droplets will fall.
Just like a snowball, it gets bigger and bigger, and finally falls to the ground and becomes raindrops...
I'm afraid that if you say this, Li Chunfeng will be regarded as a monster in a minute!
If you are not a monster, how can you see what is happening in the clouds in the sky?
But Fang Jun still thinks that Li Chunfeng should be educated about it. After all, this Niubi is probably the most receptive person to materialism in the entire Tang Dynasty, because he is wise enough!
"A few days ago, I discovered a very strange thing. It was very hot that day, and the ice cubes in the house melted very quickly. Then the servants carried the melted ice water outside the house, but in the afternoon, the ice cubes melted very quickly.
I found that a basin full of ice water was much shallower... Taoist priest, tell me, where did this water go?"
"Is there any doubt about this? It naturally evaporates after being exposed to the sun. Let alone a small basin. If there is no rain for a long time, the water level of rivers and lakes will also drop, and it will evaporate due to heat."
Li Chunfeng looked like "Are you lying?" He didn't even know this bit of common sense?
"Haha," Fang Jun ignored his contempt and continued to ask, "Then where did the water go?"
This time, it was Li Chunfeng's turn to be stunned and said subconsciously: "It's gone, it's gone. Is there any other question like where to go?"
Fang Jun raised his head and looked at the sky: "Then I will ask you again, where does the rain in the clouds come from?"
"...Rain in the clouds? Hiss..." Li Chunfeng's face was dull: "Don't you mean to say...that the rain in the clouds is the water evaporated by the sun?"
While this hypothesis completely subverted Li Chunfeng's outlook on life, it also made his mind suddenly light up!
He is the most outstanding mathematician in the world, but he is also the most powerful metaphysician. Of course, he can also be called the most outstanding Yin and Yang expert...
He has been indoctrinated in Taoist theory since childhood and is well versed in the Taoist theory of "the way of heaven and man". In his view, all matter in the entire world is nothing more than a combination of two elements, "yin" and "yang".
Tai Chi gives birth to two things, and two things give rise to all things!
Where does the rain come from?
If it were in the past, Li Chunfeng would naturally have just said to Fang Jun that the two qi of yin and yang alternate between heaven and earth. If the yin qi is strong, it will rain, and if the yang qi is strong, it will be wind...
But now, Li Chunfeng suddenly found an explanation that was more consistent with the principles of heaven and earth.
Water belongs to yin, and the water on the ground is evaporated by the rising sun, then disperses in the sky, condenses into clouds, and then turns into rain and falls to the ground, and the cycle begins again...
And isn't this process the alternation of yin and yang, the cycle of immortality - Tai Chi?
Li Chunfeng took a breath of cold air and felt dizzy...
If Fang Jun knew that some of his popular science had made Li Chunfeng understand it as "the laws of Tai Chi", he would probably be so angry that he would vomit blood!
"I would like to ask you again, if the hypothesis just now is true, then there is water vapor in the sky all the time. How can we explain why it rains sometimes and not rains sometimes?"
Li Chunfeng's brain was running at high speed, and he still figured out his thoughts. Not to mention whether Fang Jun's hypothesis was correct or not, according to this idea, he could explain his problem!
"When the Yang Qi is strong, the water on the ground turns into water vapor, and the Yin Qi is exhausted. When the water vapor in the sky becomes larger and larger, it overwhelms the Yang Qi and turns into rain. At this point, the Yang Qi is exhausted! This cycle continues forever.
Endlessness is the principle that never changes between heaven, earth and the universe!"
Fang Jun was a little dumbfounded. My brother told you the principle of water vapor condensing into rain. What nonsense are you talking about?
But thinking about this poor child who was "deeply poisoned" by idealism, he had no choice but to say angrily: "Okay, I guess what you said makes sense...I will ask you again. Since I already know how the rain comes,
So how do you make it rain?"
Li Chunfeng was obviously very smart and said excitedly: "As long as the water in the rivers, lakes and seas of the world is dried, there will be more and more water vapor in the sky. As long as the water vapor exceeds the solstice of the sun, it will be the time when the yin energy is at its peak.
Of course it will rain!”
Bake all the water in the world's rivers, lakes and seas...
Fang Jun was stunned, dumbfounded, but speechless!
Li Chunfeng seemed to have grasped the truth of the universe. He was so excited that he forgot about himself. He scratched his head and looked at the dark clouds in the sky while mumbling something endlessly. Looking at it, he was almost obsessed...
Fang Jun looked at Li Banxian'er with his mouth open. What kind of brain does this have to be able to say such stupid words? It will dry up the water in the rivers, lakes and seas of the world... With such a mind, why don't you go to heaven?
Woolen cloth?
A very crazy answer!
But from a theoretical and principle perspective, you have to admit that there is absolutely nothing wrong with it...