The junction of Nanqiu and Chifang.
On Tubao Mountain, the giant dragon was carried by concubines, and a weather vane was placed on the highest mountain.
"What is this?"
Danzhu was commissioned by Yu Zai to make this strange thing, and Yu Zai inserted this wood-copper composite weather vane high on the highest point of these hills.
The arrow above is the shape of a goo.
"Ah, this is just a tool for measuring wind direction. Just like what I told you last time, there is nothing special about this. It just always points to the source of the wind. Looking at this thing, you don't have to manually pick up the leaves to find the wind. Source..."
During the Xia and Shang Dynasties, people already knew that by hanging a long piece of cloth on the head of a flagpole, they could see the direction when the wind blew. It was called "伧" at that time, and this thing was the ancient version of a weathervane.
However, the cloth strips are relatively soft and are often blown around by the wind in uncertain directions. So the ancients changed the cloth strips into bird feathers. Bird feathers are elastic in the middle and will not sway when the wind blows.
In the Han Dynasty, Zhang Heng, a famous master of black technology, created a new version of the weather vane. This is called "Xianfengwu". It is a crow made of copper and placed on the head of a pillar. When the wind blows, the crow's head will Point in the direction the wind is blowing.
The most powerful weathervane in the ancient version is the iron phoenix on the Yuanjue Temple in Taiyuan, Shanxi in later generations.
So this thing is very strange, but the principle is very simple.
When Yuzai was working in the past, he was often exposed to this thing. It was more common in plateau pastoral areas....
Yu Zai looked at another stone tablet on the mountain. It was a weather meter. Since the implementation of the Taihao clan, most tribes would make this thing. It is nothing more than a record of some important climate measurements and time judgments.
The main function of the weather meter is to help farming civilization observe the astronomical phenomena, avoid wind, rain, thunder and other bad weather in time, and prevent the impact on the planting and harvesting of grains.
The dragon was brought here because it has the ability to pray for rain. Sun Zai brought many people with him today, but most of them were on the mountainside.
After observing the flow of wind in the area, Yuzai thought carefully for a while, and then shouted down to get everyone ready to start digging tree roots.
Tree roots fix the soil. Digging out some tree roots will cause the connection between the soil to be less close. If you cut some wood every few steps, when the heavy rain comes, this part of the mountainous area will also become more dense due to sparse vegetation and soil erosion. It is prone to flash floods and collapses.
The causes of flash floods are not complicated. Flash floods in many places in later generations are actually inseparable from the indiscriminate cutting of trees. But now, there are red pine nuts and dragonflies that turn heavy rain into heavy rain on heavy rainy days. That is not a problem. nothing.
But Yu Zai didn't plan to let his teacher go into battle from the beginning. As Dayi said, if strong men like them didn't come, what would the tribe have now?
The answer is already there.
The falcon is not powerful either. The tribe can completely defeat it by relying on its own ability. It is incomparable to the old turtle. Now, as an important labor force of the tribe, the falcon's rain-seeking ability can come in handy in this battle.
"This is not a fight."
When Yu Zai was asked about his preparations for this battle, he responded like this to the tribesmen who asked.
"This is a disaster and we are just trying to protect our home."
Whether it's the You clan trying to attack Nanqiu, or the Yu clan about to be destroyed by a flash flood, this is indeed a disaster.
"Battle? The number of people is not equal, why is it called a battle?"
After Yu Zai calculated the wind direction, under Danzhu's gaze, he pointed to the southwest!
"In five days, there will be heavy rain from the west, and autumn water will arrive in season!"
I have noticed that the breath is damp before. As a Qi practitioner, under the guidance of Chi Songzi, I am very sensitive to changes in Qi. In addition, the water level of some nearby water flows has begun to rise, and the water has gradually become turbid, and the weather vane has There was a lot of pressure.
The sky in the southwest looks a little dark, and the wind speed is not normal.
The vitality of birds decreases, and insects begin to appear in large numbers, only to quickly disappear.
Most notably, the nearby ants began to panic.
Great pressure is approaching, and the heavy rain in autumn comes in accordance with the season. After this heavy rain, the weather will gradually become colder. However, in the south and Lingnan, this change is not obvious or even absent.
Therefore, the hot and dry weather at the end of summer and even at the beginning of autumn is still maintained, which also leads to abundant rainfall.
The Akafang clan's people began to dig tree roots in the mountain, and Youhou Xiaoxiao was taken by Dayi. Together with the stone gallbladder, the mountain torrent could hit along the route that Yuzai wanted.
"The heavy rain in the south stopped two days ago, and Di Youshi must have been unable to hold it in any longer."
Yumeng came back from the south and told Yuzai that the big monkey seemed to have invited reinforcements, and strange sounds began to come from the direction of Tianbi Mountain, like...like the cry of a baby... .
"There is a strange beast in the south called the Gu Eagle..."
Chisongzi promptly popularizes science: "The vulture sounds like a baby and likes to eat people."
"It seems that this big monkey god has really found reinforcements."
Yuzai muttered, feeling helpless.
You are strong enough, why are you still looking for reinforcements? Can’t afford it?
Do all monkeys like to ask for help? Who did you learn this bad habit from?
When reinforcements arrive, wait for me to attack from two sides, encircle and encircle me, rush from left to right, crush the enemy's army, and win this battle...
You are thinking of eating peaches.
Yu Zai has made so many preparations here just to prevent being taken away by the other party. After all, the Diyou clan is very powerful. With the Akafang clan's small manpower, this is no match for them...
As for reinforcements, they were also invited, but after this, each tribe only knew that the Diyou clan might take action, but the specific time was unknown.
The main reason is that the time is too short and the distance is too long. People like Dayi can move very fast, but others cannot.
Fortunately, reinforcements were already on the way. Sanshan and Siye were the first to respond, saying they would send people over.
"Reinforcements from three mountains and four fields are coming from a shortcut to Shanbo Field. They should arrive in the next third day or so."
"As for the reinforcements from Changfeng Wilderness, it will be much later."
Danzhu looked at Yuzai, who was making plans in an orderly manner, and fell into a brief thought.
Although I thought it was ridiculous for Ruanzai to change the course of the river, after this period of observation, I found that the little wizard Ruanzai did have two brushes.
Danzhu's understanding of climate and hydrology is enough to enter the central water conservancy department.
"And one more thing."
Danzhu said: "My words are hard to hear...Zai, although the layout here is very complete, if the other party does not go through Shanbo's Wilderness, but instead takes a long way to attack the side, what will you do?"
"Wars cannot be won by just thinking."
Yu Zai said: "Ah Hong, you are right, so I am going to send out a team of baits..."
Danzhu nodded seriously: "Bait, yes, but you have to..."
Yuzai took out a wooden sign and gave it to Danzhu.
The wooden sign said "Akagata ahead, this section of road is under construction and maintenance."
And carved a lamb's head image.
Danzhu was a little confused.
But Yu Zai said that according to Shan Du Shen's arrogant character, if you don't let him come, he will definitely take this path!
Moreover, Yuzai specifically requested Danzhu and Yupan to go together.
When a barbell meets a barbell...
