Qi San and their side began to recruit people, and Chengcai and they also started the operation of building a dam to cut off the flow after the site selection was completed.

Breaking the flow is simple to say, but in practice, it is difficult. Although there is such an epoch-making product as cement, and the R&D Institute has not stopped improving the cement formula, it is still not a problem that people of this era can solve to achieve the kind of fast-setting cement like later generations and cement that can be coagulated in a humid environment.

According to Li Tianyang's idea, the construction of the dam should be a project that needs to be completed in one piece, otherwise the strong impact of the blocked water flow alone is an insurmountable obstacle.

However, they went the opposite way and divided the construction of the dam into two parts. The site of the dam was chosen by the Chengcai in a canyon, a stream that they had used and which had no name until now, and flowed far eastward between two mountain ranges that stretched four or five miles away.

First of all, Chengcai and they first built a cement fortification on the side of the mountain range, and this section of the fortification happened to have a gap in the waterwheel that needed to be placed. After the construction of the outfall was complete and solidified, they used the large concrete and a large number of stones that had been solidified to block the river on the other side, and at the same time opened the built outfall to disperse the strong momentum brought by the original blockage of the stream.

It seems very simple to say, but in practice, it took them several months to complete the entire dam from September of the first year of the Apocalypse to April of the second year of the Apocalypse. This is because the flow of water in this stream is not large, so the impact of the river is much smaller when it is blocked.

Moreover, during the period of Chengcai, they also encountered a lot of trouble, and even almost survived because of the landslides in the mountains on both sides. There is no way, the construction of dams is a thing that has never been done in the first place, and they have only a half-understanding of geographical knowledge and physical knowledge, so how can they avoid the risk that these later scientists need to spend a lot of energy and precision to calculate together!

But it is with a momentum and fighting spirit, coupled with Li Tianyang's unsparing support, and even at the expense of adding steel bars and other reinforcing materials to the concrete, the expectations paid can be seen.

In June of the second year of the Apocalypse, the water conservancy building named the Jilongshan Dam by Chengcai was finally completed, and Li Tianyang, who had the greatest expectations for it, naturally would not miss the last step of the completion of this epoch-making water conservancy building: dismantling the last wooden mold from the concrete fortifications!

When the last plank was dismantled, Li Tianyang looked at the man-made structure in front of him that was two zhang high and about one and a half zhang wide, cutting off a stream from it. At one end of the stream, it has become an artificial lake covering an area of more than 30 acres, and at the lower end of the dam, the rushing river water gushes out from the outfall under the dam, splashing snow-white waves, and slowly flows towards the original river to the east.

At the outlet, you can faintly see the waterwheel turning rapidly in the snow-white waves, and the overlapping blades on the waterwheel become invisible to the naked eye under the lapping of the rolling waves. As the windmill rotates rapidly, the gears connected to the waterwheel transfer the kinetic energy driven by the water flow to the rubble room on one side. Originally, it took three or five big men to swing the big hammer together, but at this time, driven by the gears, slowly rose, and finally reached the highest point, it fell abruptly, crushing the ore in the groove at the bottom into pieces of smaller and easier to process small stone sand.

Under the action of the funnel in the groove, the small stone sand falls sparsely down, and then is picked up by the workers' mobile phones and pushed to the mill for further processing. The power source of the mill is also formed by the rotation of the waterwheel in the dam, but the two stone mills used in the mill by ordinary people are turned into iron mills here, supplemented by bearings to reduce the friction in them, and it is easier to grind the stone and sand into fine mineral powder.

When the iron mill in front of him continued to flow out of the smooth and golden mineral powder solution, Li Tianyang's eyes almost shed tears of happiness. After more than ten years of hard work in cultivating talents, Li Tianyang has finally received the rewards of his efforts, and the long wait and expectation are finally worth it today!

"Well done!! With this set of equipment, the next gold production of our entire mine may have been substantially improved!! Li Tianyang resisted the urge to burst into tears, and looked at Chengcai with satisfaction and emotion, and the members of the R&D Institute who were tired but excited were excited.

"Of course, with this set of equipment, as long as the mining volume can keep up, our grinding processor can grind the mineral powder without interruption, and then transfer it to the masters of the smelter to smelt the gold!" Chengcai was like a proud little rooster, and said proudly with his head held high.

This set of R&D system, from development to design, is mostly conceived by the brains of Chengcai, so seeing this set of equipment finally formed, and successfully grinding out the mineral powder as desired, how not to make Chengcai proud!

This captain was actually dead in his heart, when Wu Daofu and the others rushed over to fire the cannon, he already understood that this time their brothers in this ship were afraid that they would be buried here, with their one warship, how could they resist the attack of these more than ten warships. But the perennial career of licking blood from the knife edge has made him regard death as home, and he no longer takes life and death seriously, and now since he can't run away, then for the sake of himself and for their leader Yuan Laoba, they also have to do their part, so that these bastards can see their strength!

Of course, he wouldn't know that his opponents were still the same as his boss Yuan Laoba, all of whom were from Hongtang. Whether he wants it or not, this battle is inevitable, because his warship can't outrun Wu Daofu's warship, and he loses the opportunity, so he can only be caught by Wu Daofu and them, and in the end, everyone can only rely on their own skills to make a way out.

Not long after, Wu Daofu's warship stretched out a few teams of wood pulp, and the sails were lowered halfway, heading straight towards Yuan Laoba's warship not far away.

(End of chapter)