"Second uncle still doesn't know?" Chen Zhiyong saluted Yuan Guowei and said to his second uncle Han Daochang, "Han Qian has decided to flood the Shouzhou Army. He is sending people to inform the soldiers and civilians along the upstream stream to avoid the flood!"

"Flooded?" Yuan Guowei said, "There is little rain in the mountains in autumn and winter, and the streams and rivers are dry and shallow, so there is no water available. Besides, you have not built a dam in the mountains - what can you use to flood the enemy's troops?"

"I just met Feng Yi and asked him about this," Chen Zhiyong was about to explain, but saw Feng Yi wandering over with a grass stem in his mouth, and hurriedly called him over and said, "Master Yuan

My second uncle and I are asking how to flood the Shouzhou Army, and it's up to you to explain."

"Master Yuan, Master Daochang?" Feng Yi came over proudly, cupped his hands, and said, "There are frequent floods in the rivers in the north. Do you two know that?"

"The rivers in the north are subject to severe floods from time to time, but we have never heard of such disasters between the Yangtze and Huaihe Rivers," Yuan Guowei said.

"I will explain this to you two adults in detail,"

Feng Yi said like he was a teacher,

"When it comes to the formation of cold floods in rivers in the north, it is also simple. Take the Yellow River as an example. The river is thousands of miles long. After the beginning of spring, the temperature difference between the upstream and downstream areas is huge. If the downstream river is still covered by ice, the upstream river will first

When the ice begins to thaw, the water moves under the ice. The upper reaches are full of water, breaking the ice layer downstream. A large amount of broken ice blocks the ice layer further downstream, forming ice jams and ice dams, which will further increase the water level and finally break through the ice on both sides.

The dams caused a major disaster. There has never been a flood between the Yangtze River and the Huaihe River. On the one hand, the Yangtze River and the big rivers to the south will not be frozen. However, the river basin to the north of the Yangtze River is not far enough and the temperature difference between the basins at the same time is extremely small. Even if

It's the Huaihe River. The ice in the upper and lower reaches has been thinning and melting almost at the same time since the beginning of spring. Naturally, there is no need to worry about being harmed by freezing floods. However, the Nanfeishui River has not thawed yet. If it can be artificially created in the upper and lower reaches,

Can the temperature difference cause freezing floods? Do you two adults know how much firewood has been accumulated and how many cellars have been dug in the villages upstream for today? Besides, since the night before, the temperature at night has returned to above zero, which is destined to be Xu's fate.

Mingzhen can’t escape this disaster!”

"Zero degree?" Yuan Guowei asked in confusion after hearing the new term.

"Just put a few pieces of crushed ice in a basin of water and ask people to keep an eye on it. When the crushed ice increases, the temperature is below zero. When the crushed ice melts, the temperature is above zero. Han Qian also said that he wanted to get a thermometer, but he couldn't.

After I got it out, I threw a bunch of messy drawings at the Engineering School." Feng Yi said.

Yuan Guowei thought that Han Qian used the melting of ice water to measure cold and heat, which was wonderful and suitable for the current situation, but he still had a lot of confusion and asked:

"There is no rain in autumn and winter, and the rivers are dry and shallow. I came here all the way, and I didn't see you building dams in the rivers to store water in advance. Even if you could speed up the melting of the river ice more than a hundred miles upstream overnight,

, it is not enough to form a water force that can destroy the Shouzhou Army’s beach camp!”

The river beach north of Shenjiaji is two to three miles wide. If sufficient water volume and water level cannot be accumulated in advance, how much impact will it cause?

What's more, the enemy camp also built a certain amount of protection along the river with wooden earthen walls. It was obviously to prepare in advance for the rainy season and the flood of Nanfei River. If they wanted to attack the enemy camp at this time, they would need a larger force.

of water potential.

"When we entered the mountain, the water volume of the Nanfeishui River was actually at its smallest. When we broke open the ice, the flow was almost stopped under the ice. But it was also the easiest time to do anything. We even only needed to break the ice and remove the water underneath.

When shallow water is exposed to severe cold, it can freeze layer by layer, forming ice dams.”

Feng Yi said,

"If they want to build an open dam, no matter how stupid Xu Mingzhen and the others are, they will take precautions. But if you look at the river channels before and after Shenjiaji, there is nothing abnormal. In fact, many hidden dams have already been formed under the ice. Below the hidden dams

The river has stopped flowing under the ice, which makes people think that there is still very little rain in the mountains this winter, but in fact it is blocked under the ice in the upper reaches, and there are many hidden dams and ice dams along the way.

Blocking water. In this way, each layer of ice dam blocking water only slightly raises the ice cap of the river. Otherwise, the ice cap of the river near Shenjiaji would have been squeezed open by the overflowing water. And the entire

If the water stored in the upstream tributary river channel can break open all the hidden dams and the ice caps on the water layer by layer before tomorrow morning, it will be enough to raise the water level below Shenjiaji by five or six feet. This is

After calculation, below Shenjiaji, there were two rows of fences driven directly into the river. The Shouzhou Army may have thought that this was to restrict them from attacking up the river ice, but in fact they were preparing for this moment so that they could intercept the upper reaches.

The crushed ice that rushed up formed a larger ice jam and ice dam. How high the two rows of fences can support the ice dam was also calculated. As for how to calculate it, you can only ask Han Qian.

…”

"..." Yuan Guowei opened his mouth slightly, not knowing what to say for a long time. Unexpectedly, Han Qian meant this when he said yesterday that the war could not be delayed any longer.

"Has all this been planned a long time ago?" Han Daochang didn't expect that there would be changes that they never expected. He grabbed Feng Yi excitedly and asked.

"Of course, the Shouzhou Army cannot intercept us before the fall of Anfeng Village. How can they seize the initiative?" Feng Yi said arrogantly, as if all this was his strategy.

"The plot of Marquis Qianyang is so unpredictable that we have been worrying for so long in vain." Yuan Guowei said with a sigh.

Han Daochang excitedly asked Feng Yi and Chen Zhiyong to accompany them to find Han Qian. Along the way, he saw elite troops and horses transferred from the hinterland of Huaiyang Mountain, mainly to gather at the gap on the two wings of Wujin Ridge. It was obvious that they had used the water force to defeat the enemy camp.

, the troop dispatch channel in front of Shenjiaji will also be washed away by the flood. If we want to pursue the enemy's defeat and expand the victory, we can only attack from the steeper ridge roads on both sides...
Chapter completed!