"There is fishing and hunting in the river outside the city" Li Yuan thought about it for a while, and asked again: "It's just that the river outside the city is turbid, and it is difficult to find the location of the net, so fishing and hunting can only rely on the sky to hit the luck." Moreover, there are also pig dragons in the river, and if they accidentally catch the net, non-witch fighters may have to worry about their lives. Besides, even witch warfare is inconvenient to move underwater, and the effect of fishing and hunting is even worse than hunting, I'm afraid it won't solve the urgent need, right?"

Fengyun smiled: "Fishing and hunting do not have to go into the water, as long as the net is large enough, the material is tough enough, and the traction is large enough, it is completely possible to set up a barrage net across both banks." ”

"You mean barrage?" Jiang Xiang asked: "The big river outside the city has a trail of hundreds of zhang, and the water is turbulent, so how long can the net be stopped? Now that the heart of the ancestor has been lost, I'm afraid it will ......" She turned her eyes to look at Li Greed, but she still didn't say anything after all.

Fengyun saw Jiang Xiang's eyes, lowered his eyes, and raised his eyes again for a moment and said with a smile: "I didn't say that I wanted to block the big river, so in this way, patriarch, you first send the clansmen in the city with good water characteristics to go to the big river outside the city with me to take a look, and I will tell you what I think." ”

"It's okay, Li Ma also has fishing nets at home, so I asked him to go with you to have a look. Jiang Xiang raised his hand and called Li Chou, gave a few words, and then he ran towards the city.

Li Yan said: "I'll go with you." "Jiang Xiang naturally wants to go over together.

Fengyun laughed dumbly, Li was really anxious, he couldn't wait for a moment, he wanted to go with Fengyun to see it, obviously he had a headache from the Yi people.

Li Bian watched with interest as Li Bian pushed the wheelchair towards the outside of the city, heard the creaking sound of the wheel and axle rubbing in his ears, and asked curiously, "What is this?"

Fengyun smiled: "Wheelchairs, things for people with inconvenient legs and feet, for transportation." ”

Li was obviously interested in wheelchairs, and glanced at them from time to time. It's not surprising that even the materials are extremely rough in workmanship, but the round wheels hand-polished by compass lines have an industrial aesthetic.

For people who are used to it, it is naturally not like anything, but for the first time to see someone, it is undoubtedly a miracle.

Fengyun still remembers that when Li Bian used his tools for the first time to cut the trunk of a tree into planks and planed it, and then used a simple wooden compass to draw a circle with beautiful lines on the board, his tears fell.

Li Qing held the earth compass and trembled for a long time, he clearly knew that even if he used a stone hammer to beat it for a lifetime, he would not be able to knock out such a perfect circle. This is a power that only God has, and his Son is learning this power. From that day on, Fengyun knew that even if he wanted Li Qing's life, it would not be difficult.

But Fengyun didn't get carried away, this is just some simple geometric principles, even if he doesn't come up with it, later generations will still gradually figure it out.

Comparatively speaking, he valued more the kind of games played by the Li children he met along the way. Jiang Xiang told him that it was a river map, a figure handed down from Fuxi, containing the truth of heaven and earth, and the witch array she created was also born from it.

After trying to play it a few times, Fengyun had already discovered that it was an ancient mathematical model. Before the popularization of writing, the Li people's mathematics education for children was enough to compare with later generations, and Fengyun admired Jiang Xiang's vision.

He has always believed that mathematics is the most powerful force, and that physics may have an end, but mathematics will never have an end. If there were a universal language in the universe, mathematics would definitely be at the top of the list.

There was actually a egg among the Li people with the best water nature, and he was very excited when he was assigned a task by the patriarch for the first time, and he shouted and screamed as he walked, attracting a group of children to follow.

There were also thirty or fifty Li men who came over, and more than a dozen of them were witch wars, including Li Dahe, whom Fengyun knew. There are more and more Yi people, and in order to better manage them, there are more witch wars than ever to stay in the city to maintain order, which also makes the manpower of the hunting team even more tight.

Li Dahe looked helpless, he was forced to come by other witch wars, he himself was reluctant to get close to Dahe on weekdays, but those few bad friends were easy to encounter such an opportunity, how could they easily let him go? He could already predict how those bastards would throw themselves into the river.

Li Ma brought a lot of hemp rope and fishing nets to keep at home. The net had been used a few times in the past, but it was only in the winter when the hunting team could not keep up with the speed at which the hunting team brought back the prey, so I remembered to use it to hunt some fish and shrimp to eat. However, it will not catch more, there are dragons in the big river, and the power of the scale tribe on land is still huge, if it hunts too much and attracts the spirit vein of the scale tribe to retaliate, it will be a very troublesome thing, so the Li people would rather bully the Mao tribe who has no emperor.

This is the first time Fengyun has come to the river, and the surface of the river, which is 500 meters wide in diameter, is completely different from a distance and up close.

The rushing water swept the sediment and flowed eastward, and the rolling turbulence could be seen from time to time near the river, and it was obvious that the terrain under the water was very uneven. Even if there are fish and shrimp in such water, they are hidden deep in the bottom to avoid the upper rapids.

If you want to go to the net, you have to find a section of the river with a slower flow, and there is a good alternative area for such a section of the river, which is the inlet of the drinking river.

When the city was first built, in order to make the flow of water into the city slower and the sediment to be effectively settled, Li Greedy and they deliberately found a gentle river beach and dug the inlet of the drinking water river.

The tumbling river bends here and breaks out of a shoal, which nearly doubles the width of the river, but minimizes the speed of the water in this section of the river by its natural gentle zone.

The gentle river also attracted the surrounding birds and beasts to drink here, but the wild things around Chiyou City were not as fearless as the people in the old forest, and they had already been frightened by the Li hunting team. When he heard the sound of the crowd coming from afar, he ran clean, and when Fengyun and the others came over, they only saw all kinds of footprints and hoof prints on the shore of the shoal.

The only one who didn't run away was a bison, which was being bitten by a giant crocodile that was four meters long, and dragged into the water.

"Shhh

Li Dahe didn't speak, but behind him Li Dahe had already flown out, and the wooden gun in his hand was thrown with the sound of the wind, and it was submerged into the water against the side of the giant crocodile's face, and went deep into the bottom of the river, leaving only the tail rod to tremble on the surface of the river, and stir the water surface to make a gurgling sound.

The giant crocodile was disturbed, but bit even more deadly, the bison mooed, half of its body has been pulled into the water, if it is deeper, the giant crocodile can borrow its strength, turn on the death rolling mode, then at least one leg can not be saved.

"Haha! Li Dahe, you crooked bastard, you can't pee! Look at me!" Another Wu Zhan stepped forward and threw his hand away, the wooden gun in his hand had already flown out with the sound of the wind, and shot away.

The giant crocodile had just emerged from the water to breathe, and a wave of death rolled over with it, and with its size, it could easily break one of the buffalo's legs and tear it off. But suddenly it went dark, and the sharp pain that followed made it struggle frantically.

The wooden spear that pierced the eye was dragged into the water and snapped, adding to its pain.

With a clatter, the hind hooves of the bison broke off from the calf, and only a scream was heard, and the bison struggled ashore from the water and ran towards the woods.

The injury was too serious, the bison couldn't run fast, and Wu Zhan had already chased after him in a few vertical steps, grabbed the cow's neck, pressed the blood vessels on the neck, and after a while, the bison mooed and was dizzy and resisted by him.

"Send it back first, let Li Shizhen take a look. Li Wan commanded, and then explained to Fengyun: "The cattle in the clan are all domesticated from this kind of original cattle, good cattle are wild and difficult to tame, so it is best to domesticate such injured cattle." ”

Wu Zhan, who threw wooden guns, also ran to the river and went into the water, looking for an opportunity to insert the giant crocodile that was still struggling and dragged it to the shore. Behind him, more than a dozen crocodiles of different sizes caught up with him when they smelled blood.

The witch warrior dragged hard by himself, and went up to help with two more before dragging the big guy to the shore. The wounded giant crocodile was extremely vicious, frantically shaking its head from side to side, with its mouth wide open ready to bite everything that came its way.

"Li Dashan, you come back first. Li Yan opened his mouth and called back the three witch wars, and he whispered to Fengyun: "The spirit vein of the scale clan in this big river is the pig dragon clan, and now the demon clan is about to attack, if you want to win the scale clan alliance, you can't offend this spirit vein too much." ”

Fengyun nodded thoughtfully, but did not speak.

The witch warriors retreated, the wounded giant crocodile lying on the shore with its mouth open and vigilant, and a group of killers lurking in ambush behind them.

Li Greed asked, "You have seen it, what is the intention?"

Fengyun thought for a moment and said, "I'm going to take a look at the water inlet first." ”

The inlet of the drinking water river has to go more than half a mile further, and the slope of the five-meter-wide river channel is not much different from that of the big river, so the flow rate of the river drawn from it is very gentle, and after nearly ten miles of precipitation, it is finally introduced into the city and becomes the drinking water of all Li people.

Fengyun looked up and down, raised his chin and asked, "What is the row of piles planted at the inlet?"

Li Greed said: "One is to slow down the speed of the water, and the other is to block the pig dragon from running down the river into the city, what's wrong?"

Fengyun shook his head, looked at it twice, and said, "I've counted, what about the fishing nets? Li Ma can cast nets to catch fish, right? You first cast a net on the inside of the inlet and I'll take a look." ”

When Li Ma heard this, he untied the fishing net, sorted it out one by one, threw it in his hand left and right twice, and threw it out with the momentum, and the fishing net spread out in the air, fell into the water, and smashed out a circle of white thin waves.

Li Ma's fishing net is not as good as the fishing net of later generations, the weight of the hemp rope alone is enough to be more than five times that of later generations, plus the pendant made of stone, it is more than ten times heavier, but Li Ma can throw out nearly three meters away, which can be regarded as old and strong.

Pulling the rope to close the net little by little, feeling the trembling of the rope in his hand, Li Ma smiled on his face: "There is something!"

As the fishing net was pulled out of the water, the waves of the fresh fish jumping in the middle were like boiling water, and when they saw that the first net had been caught, everyone who accompanied them was happy, and they all stepped forward to help Li Ma drag it to the shore together.

After a while, a net of fish and shrimp was dragged ashore, grass carp more than a meter long, carp more than half a meter long filled the fishing net, and a layer of aquatic weeds wrapped around the net. Fengyun looked at the carp with golden scales, a smile appeared on the corner of his mouth, and he praised: "What a big Yellow River carp." ”

Li Greed didn't expect that there would be such a rich catch in the first net, so he quickly stepped forward to count it, and went down the net to catch seventy-three fish, almost no less than two feet. The youngest is enough for an adult man to eat for a day, of course, Wu Zhan doesn't count, but it's also very good. It was the first time that everyone had seen such a simple harvest, and this was clearly just picking up meat to eat! A group of people were counting and wearing the big fish with hemp rope.

Li Ma was very happy, this was the first time he had caught so many fish in one net, it was really strange, how could this Li Yun know that there were many fish here?

Not believing in evil, he laid another net, this time more, and eighty-two fish were caught in one net, and the net that was almost broken for him.

The shit egg excitedly rode a big grass carp about the same length as him, flying up and down, and the buttocks were whipped by the tail of the fish and did not let go, laughing vigorously.

Li Dahe shouted happily: "This is simply meat picked up for nothing! I knew that we could catch so many fish in the river, and we went out to hunt with so much effort? Alas, Li Ma, why did you never catch so many fish when you went out to fish before? Did you steal and eat them?"

"Fart! If I had so many fish to eat, wouldn't I be as fat as you earlier?" Li Ma scolded with a smile, and everyone laughed together.

Fengyun looked left and right again, nodded, and said to Li Ma: "One mile back along the draft river, go down a few more nets to take a look." ”

This time, without Li Greed's orders, all the people followed Li Ma and ran downstream, and after a while, they ran back, and Li Ma shouted: "No! There are many fewer fish in the back! I went down three nets, the first net did not reach the net, the second net only had 27, most of them were only one foot long, and the third net was still few, only 12 small fish. ”

Fengyun didn't care about the number of fish, but asked, "Did the net catch the aquatic weeds?"

"No, there are not a few aquatic weeds. Li Ma said.

Fengyun nodded and said, "Continue to walk back, three miles, five miles, all go down to the net to try, if I guess correctly, there will be fewer fish behind." ”

Putting the fish down, Li Ma dragged the net and ran back, and it took a long time to come back with a bunch of people, carrying more than a dozen fish in his hand, and seeing the few small fish, Fengyun had a number in his heart.

"Strange! How do you know that there will be fewer fish in the back?" The Li people who went past with Li Ma were very curious, could Li Yuan be unpredictable?

Fengyun smiled and said, "Don't be in a hurry, you can go and cast a net everywhere outside the water inlet." ”

At this moment, everyone had obeyed the wind and clouds, and they ran to the shallows outside the water entrance with Li Ma in their arms.

Li Ma was afraid that he would run away from the fish, so he asked Li Dahe and them to wait outside, afraid that there would be pigs and dragons in the water, and the witch wars were not far away to take care of them, and the rest of the people were driven ashore.

The next situation made Li Ma puzzled, returned to the big river to cast the net, but it seemed to return to the situation when he was fishing before, a total of ten nets were cast, seven nets were empty, and the remaining three nets, one net caught a stone, one net caught three small fish, and the most net was only two big fish and three small fish.

Strange, what's going on? Shouldn't there be more fish in the big river? Why are there so many fish in the draught river? And the further you go, the fewer you go, how did Li Yun know?

Ten nets are already the limit of Li Ma, casting nets is a very laborious job, if there is a harvest, it is better, it is easy to be discouraged if the net is always empty.

Li Ma dragged some open fishing nets back to Fengyun and the others, and asked the doubts in his heart.

Fengyun turned around and asked, "Do you see that?"

Jiang Xiang put his hands behind his back and said with a smile: "You! ”

Li Greed's expression was complicated, staring at the water in the drinking river, and he shook his head helplessly and said, "Why didn't I think of it before?"