Gu Jianglin never thought that the emperor would change his personality, and now that it was like this, he didn't know how to answer.

However, seeing that the emperor's temples have been dyed with frost, and he is gradually getting old, no wonder he will have a little mercy, so he smiled in his heart and didn't care, maybe it was also because, when he was old, he was particularly attached to his family.

When the emperor saw that he didn't speak, he knew that he might still have some resentment in his heart, so he sighed and said, "I have something important to do this time, so you can take me to the dam at will." ”

Gu Jianglin hugged his fists and responded.

The father and son walked on the embankment, which was deepened and reinforced, and was no longer as dangerous as before, not to mention that the upper embankment was raised and a dam was built, making the downstream appear safer and calmer.

The two of them strode forward, and all the people were on the periphery, not daring to approach.

Before he knew it, he walked up to the Blue Barrage Dam, and the emperor pointed to the dam and said, "I have never seen such a pattern in a book before, the flood has plagued this river for too many years, is it useful for you to do this?" ”

"Erchen has carefully studied it, and this new method is useful." Gu Jianglin said.

"How the hell does it work?" The Emperor asked.

Gu Jianglin immediately introduced the principle of the dam and told the emperor that the main function of the dam is to divert the water, and the water from the upper reaches of the river will be diverted to the downstream according to different seasons, and if the dam is opened and closed, the upstream water will be stopped above the upper stream, and the upper part of the distance we have done the river widening and the construction of the river embankment.

"I'm afraid it won't last long if you use sand and gravel, this project ......" Before the emperor finished speaking, Gu Jianglin smiled, invited the emperor to the side to mix cement and said, "Father, look at this material." ”

There are also solidified bricks and stones next to it, and the emperor picked it up and saw that the density was very high, different from ordinary bricks, and it didn't seem to have to be forged in a kiln.

It's just that this kind of gray-white brick, he has never seen it, he thought it was not firmly thrown on the ground and tried it casually, but he didn't expect that the masonry was not broken in the slightest.

Gu Jianglin handed the brick and stone back again, and took the emperor to the riverside to check the Liuliu, "The pouring above is made of this material, there are almost no gaps, and the water flow will not be so easy to erode." ”

The emperor glanced down, and saw that the sparkling waves below, the kind of dam made of masonry was clearly visible, and it felt very solid, and there would be no instability when standing on it.

Gu Jianglin smiled and said: "Father, this material is strong and not easy to be eroded by rain, and the son has also thought that if the dam is built in the future, if the excess materials can be found, I am afraid that there will be a new building material in the capital." ”

"How did you find it?" The emperor asked with some surprise.

When Gu Jianglin heard this, he said with a smile: "Although this material looks very strong, the raw materials are not difficult to find, only need to add volcanic ash and lime to become volcanic ash, and it is even more visible to find lime in a village where a volcano erupted, so the cost of these two is not expensive, but it costs some labor and transportation costs." ”

When the emperor heard this, he looked back at him, "Such a clever mind is not something that can be thought of in a day or two, in the past, the doctor asked you to read the book of sages, but he never taught you how to deal with the flood, this time I handed over the matter to you, I know that you also know that it is difficult, I didn't expect to do it so well, but this time the idea is not what you came up with, right?" ”

Gu Jianglin didn't mean to take credit, and admitted it very happily, "At that time, how to make this river long-term and stable, it was really a headache for Erchen, Erchen originally wanted to use traditional methods to clean up the river and strengthen the embankment, but he felt that the annual labor maintenance cost was not a small amount, not to mention, every year the imperial court allocated a lot of silver, but there were still frequent floods, which made people feel that there must be some drawbacks in this, so Erchen carefully considered it to see if there was any way to achieve long-term stability. Later, Erchen found a strange person, so he provided this method for Erchen, and after careful study, he felt that this method was useful, not to mention that although it is now time-consuming, labor-intensive and wasted money, it can achieve the effect of peace for several years. ”

The emperor nodded and said with a smile: "Such an ingenious idea must have been able to be said by a strange person at that time, such a person must be a talent, and he must be invited to the court as an official." ”

When Gu Jianglin heard this, he laughed, "And the person Erchen said is a woman. ”

"Oh? The problem that has plagued the people on both sides of the river for many years turned out to be solved by a woman! The emperor's face was full of disbelief.

Gu Jianglin smiled and nodded, "Yes, this woman is really different." ”

The emperor glanced at the expression on his face and smiled, "I want to meet such a genius." ”

Gu Jianglin was a little stunned at this time, in order not to lie in front of the emperor, he said everything in one go, but he never expected that the emperor would have such a mind and wanted to see Xi Duyun.

Xi Duyun was probably completely unprepared for this matter.

Thinking of this, he immediately said: "This, the emperor is afraid that it is a little inappropriate." ”

When the emperor heard this, he raised his eyebrows and asked coldly, "What's wrong with this?" Under the whole world, it is not the king's land, the soldiers who lead the land, it is not the king's ministers, they are all my subjects, why can't they come to see me. ”

Gu Jianglin was speechless for a while, and after a long time, he sighed and said: "It's just ......" After saying half a sentence, he took it back again, in fact, the emperor's words were right, but he felt in his heart that Xi Duyun was a mysterious woman, and he might not want to see the emperor.

Seeing him hesitate, the emperor turned around and asked with a smile, "Just what?" ”

"It's just that Miss Xi is a girl's family, and her home is far away in Qi County." Gu Jianglin said the difficulty, but the emperor didn't seem to be on the same line with him at all, and asked with a smile: "You also met her there, right?" ”

Gu Jianglin nodded.

The Emperor smiled, "Don't tell me, she provided the drawings, but she didn't do any field visits, so she carried out this project. ”

Gu Jianglin hesitated, shook his head and said, "She has been to Yanzhou, but she ......"

"Okay, there's nothing you can't see, what are you doing in secret?" The emperor smiled and continued to walk forward.

The dam in the distance is like a guardian saint standing on the surface of the river, and it gives you a sense of peace of mind when you look at it.

Gu Jianglin had no choice but to keep up with the emperor, he seemed to have a lot of insight into this new type of dam, Gu Jianglin couldn't know much about this, the more the two talked, the happier they became, and the original estrangement between father and son seemed to be gradually disappearing in this conversation.

Gu Jianglin rarely shows his heart to anyone, every time, he feels that the other party doesn't understand him, especially the emperor over the years, he has always been in a high position, and there is a little less family affection, he always treats everyone with a strict attitude, and that little bit of family affection seems to only be given to the six princes,

This feeling is also a bit unreal, and after really talking about it, I found that the ideas of the two people are so compatible, and they really deserve to be father and son.

In the end, the emperor said with a smile: "Even if you don't see the actual effect, you can imagine what it will be like when it is really built." ”

Gu Jianglin breathed a long sigh of relief, "We will definitely ensure long-term peace and stability on both sides of the river." ”