Zhu Yunwen finally handed over the design drawings. Zhu Yuanzhang looked at them first and asked about every detail. Although Zhu Yuanzhang didn't know much about architectural design, the design drawings Zhu Yunwen took out were really better than all the designs he had seen, and they were simply exquisite.

Zhu Yuanzhang looked at Zhu Yunwen a little incredible: "Yunwen, are these design drawings really you personally painted?"

"Yes, Grandpa Emperor."

"Yunwen, when did you learn this?"

"I learned it a few years ago from a Western barbarian."

Of course, Zhu Yunwen did not deceive Zhu Yuanzhang, but the Western barbarians he mentioned were school teachers a thousand years later, which also means that Zhu Yunwen has mastered the technology thousands of years later, so how could he not be able to complete an imperial tomb?

"Yunwen, you are sure you can build an imperial tomb under the Huai River."

"Of course I'm sure."

Zhu Yuanzhang was still half-believing, but he didn't want Zhu Yunwen to be disappointed. In the end, he actually thought of a way to test Zhu Yunwen.

"Yunwen, the matter of the imperial tomb is of great importance, why don't I let you experiment."

"Grandpa Emperor, how do you test it?"

"There is not a Qingshui River outside the capital. As long as you can make the Qingshui River as the same as this design, I will let you try this design for now."

"Grandpa Emperor, then it's a matter of determination."

Early the next morning, Zhu Yunwen took Luo Yue and Zhao Fei to Qingshui River. They rode from the upstream and downstream the Qingshui River. Of course, Zhu Yunwen would not forget the serious business. In addition to traveling, he also recorded the geographical appearance of the entire Qingshui River and the living conditions of nearby residents. After some comparison and measurement, he finally determined that the river should go north.

"Your Highness, why did you change Qingshui River to the north?"

"Zhao Fei, what do you think is the difference between north and south..."

"The land on the south side is relatively north, and the land is softer and easier for excavation."

Zhu Yunwen smiled and said, "Zhao Fei, you just see the surface. As you said, the land on the south side is softer and easier to excavate, but have you ever thought how much fertile land and houses would be wasted in this excavation?"

"Your Highness the Crown Prince, but there is a mountain in the north that is blocking it, and the land there is hard to dig at all."

"I have my own way."

Zhu Yunwen spent so much effort to preserve the fertile fields and houses in the south, the most important thing was to implement a plan in his mind. In addition to allowing the land in the north to be well irrigated, the most important thing was to open up the passage between the capital and the fief. Originally, it was only a day and a night to get from the capital to the fief, but if the mountain roads were difficult to travel, it would be even more important. However, if there was a waterway, you could get there for a long time without using it. This waterway is easier to transport than land, especially heavy goods, such as heavy goods such as the Shenwu Cannon. If it was time to transport from the fief to the capital by water, it would be no problem to transport it at any time.

Zhu Yunwen started construction soon after confirming the plan. This time, he specially invited the emperor and civil and military officials to come and watch. After loud noises, a mountain actually teared a huge hole. Such amazing methods not only scared the civil and military officials to death, but even Zhu Yuanzhang, who was invited, was shocked. After all, this power was comparable to the power of ghosts and gods.

"Congratulations to the Emperor, congratulations to the Emperor, the prince actually obtained the power of ghosts and gods..."

After a minister shouted, all the ministers were in effect, which was far beyond Zhu Yunwen's expectations, but he still explained all this slowly.

"My dear friends, my method is not the power of ghosts and gods. It is the power of science. Its principle is actually the same as the Shenwu Cannon, but I only increase the power."

"So that's how it is."

All the ministers had seen the Shenwu cannons, and some of them had even seen these Western barbarian cannons and understood some things about Western science. They finally accepted the idea of ​​His Royal Highness the Crown Prince.

Huang Zhicheng couldn't help but ask, "Your Highness, you are more powerful than Western barbarians in control of this magical martial arts cannon?"

"I haven't compared this, but according to the caliber of our cannons, our Shenwu cannons are naturally bigger than them."

Zhu Yunwen expressed his strengths, but he had to admit in his heart that the cannons of Western barbarians still have something to learn, especially the design of these cannons is easier for naval battles, which is what they lack the most.

"Yunwen, don't hide it. Are there any better Western cannons than our Shenwu cannons?"

"Grandpa Emperor, it's true that my grandson really can't hide anything from you."

"Yunwen, don't be careless, just talk about it."

Zhu Yunwen smiled and said, "Grandpa Emperor, the cannons of Western barbarians are more convenient for naval battles. This is where we don't let them, but in fact, this is not that cannons are worse than others."

"Yunwen, what do you mean?"

"Grandpa Emperor, I can change the cannons to facilitate naval battles, but our Ming Dynasty ships could not accommodate a few cannons at all."

Zhu Yunwen pointed out the problem incisively, but he did not expect that this unintentional action would have allowed the Ming Dynasty's navy to develop unprecedentedly. After all, he did not expect that Zhu Yuanzhang would quickly expand the navy as he said.

"Yunwen, how long will it take for your project to be completed?"

"It's been about two months."

"What!" Zhu Yuanzhang couldn't believe Zhu Yunwen's words. After all, such a project would take at least one or two years to complete.

"Grandpa Emperor, don't worry, two months are just conservative estimates. If it goes well, it can be completed in one and a half months."

Zhu Yunwen really did something that ordinary people could not accomplish. He used a large amount of explosives to open the river. This round of blasting was built in just ten days, and the next step was manual repair. Zhu Yunwen's scientific work and the assistance of the army, the project went smoother than expected, and it was almost completed in one month.

"My good grandson, I didn't expect you to be so good at engineering?"

"Grandpa Emperor, the amazing ones are still behind."

"Still behind?"

Zhu Yunwen actually tried the sluice in front of Zhu Yuanzhang. With the sound of chain sluice, the sluice opened the water of Qingshui River poured down like a galloping horse, and finally it reached the Weishui River, Lin'an, the prince's fiefdom.

"Yunwen, this is simply a magical craft..."

"Grandpa Emperor, this is actually not the most powerful place. I have another purpose to build this canal."

Zhu Yunwen actually expressed his true purpose. Zhu Yuanzhang was both surprised and happy. After all, he solved the problem that had troubled him for many years. Besides, according to Zhu Yunwen's idea, the capital was even more impoverished.

(End of this chapter)
Chapter completed!