I am very optimistic about you, and the wise king Li Shimin pushed all the problems to Liu Yiu-yong.

The direct consequence of this sentence is that from then on, there was a regular visitor in the Liu Mansion, Tao Yande, who was like a piece of candy, and was begging for all kinds of people, and was named as a deceased person. As long as he had free time, the old man Tao would bring some specialized studies in the organization to Liu Yiu and stay at home.

The discussion on the construction of hot air balloons is second to discuss. Lao Tao focused all his attention on Liu Yi's unique drawing method.

As the saying goes, although people cannot lead to the Ministry of Works to plan things, Liu Yifan's novel and clever drawing skills must be fully exhausted. After all, it is better to learn to fish than to get a fish. Compared to the hot air balloon that can be made at any time, Tao Yande, the Minister of Works, who has good knowledge, still value Liu Yifan's design method, which is simpler, intuitive and clearer than traditional drawings.

That was a pioneering move, and this was Tao Yande's judgment on Liu Yi's technique in his heart.

Compared to Li Shimin and those outsiders who only know how to watch some fun, Tao Yande, a professional, can realize the role and significance of this new drawing technique. Just like a hatchet and an axe, although both can chop wood, but if you really cut large pieces of wood or do large projects, Liu Yifan's new drawing technique is hundreds of times easier to use than the "hatchet" that can only be used to cut some fine wood.

If this fine, intuitive, and clear composition method is used for palaces, bridge art, imperial tombs and other projects with huge scale and difficult to grasp, it is equivalent to planning on the drawings to avoid or reduce some common problems and errors in the construction process.

How much money can you save? Tao Yande, who has always complained that he has no spare money in his pocket and has always wanted to get some funds from Li Shimin but has not obtained it. He regards this method of drawing as a treasure that can save money by gathering treasures.

Therefore, Liu Yifan is now a treasure that must be obtained in the eyes of Tao Yande, the old minister. When he saw Liu Yifan in his eyes, his eyes were bright and he wished he could swallow him in one bite.

"Master Tao, Master Tao, the student begs you," Liu Yi, who was chased by the old man, was once again squeezed into the house by Tao Yande in the living room of the Liu family courtyard. He bowed to the Tao Shangshu, saying: "It's not that the students hide their personalities and cherish them, and refuse to teach the adults in the Ministry of Works to make drawings like this. Instead, the students really don't know where to start. Even if they really want to teach, it's not a difficult word to make such engineering design drawings neatly and rarely mistakenly in a year or two."

He pointed out Tao Yande's thoughts that he had never revealed. Liu Yi didn't want to hide with him anymore. If this matter was not resolved as soon as possible, God knew when this old man would stick to him. Liu Yi had had enough of the behavior of someone following him even when he went to the cottage. Since Tao Yande was caught again today, he simply made the words clear.

"One or two?" Old Man Tao was stunned and treated this kind of words as Liu Yi's refusal. Without any embarrassment, he said directly: "It's not too long, it's just three or five years. As long as those incompetent academic officials can learn this method of mapping, I can afford it, and my nephew doesn't need to worry about me."

"Well?"

With a stunned expression, Liu Yiu felt that he was still underestimating the degree of the Lord Shangshu's slut. He never expected that in the Tai Chi Hall, Tao Yande, who had a honest and honest appearance, had such a thick skin. He was really comparable to the two old men, Su Bingren and Cheng Yaojin.

Are the old ministers in the court all like this? A little powerlessly, Liu Yiu sighed in his heart.

"Since that's the case, the students have nothing to say," Liu Yiuan took out a book from his arms that he had specially made overnight to deal with today's situation. He looked deep and made a decisive look, and then extended it to Tao Yande, saying: "This is left by his master, divided into three parts: 'Geometry of painting, 'Projection', and 'Three-dimensional Space Model', and some basic numerical algorithms are also interspersed with. If you can understand this book thoroughly, it is not a difficult problem to accurately draw the map."

"Oh, how can I be so embarrassed? This thing is left by your teacher after all. Although I am thick-faced, it is not easy to win over others' beauty." The old man's two dry hands grabbed the book in Liu Yi's hand, his eyes were full of blue light, but his mouth was still very polite, as if I was embarrassed.

"Mr. Tao doesn't need to be careless," he let go of his hands tactfully, and looked at Tao Yande's treasure and took back the book. Liu Yi spoke softly and said something that made Lao Tao feel a little awkward: "This is just a copy, which was obtained by the student's handwritten by the student these days. The student's words are thick and rarely seen. I hope Mr. Tao will not be surprised."

"Oh, that's the case, then I'm ashamed of me." There was some regret. I knew that people didn't want to, and they didn't want to see the real book. Being able to take out this copy of the book is a perfect end. It's a bit overwhelming, and Tao Yande couldn't ask for it anymore. After all, the purpose of getting this book today was to achieve it. Besides, it seemed a little ignorant of advancing and retreating, which really attracted Mr. Liu's disgust.

He raised his hand and looked at the treasure he had finally obtained. After looking through two pages, Old Man Tao frowned deeply. The ugly words on the book were second, which made him feel a little worried and blushed. He couldn't even see the things in the book at 80% and didn't understand.

It is easy to understand whether triangles, squares, and flat four sides are just some edges, borders, and frames, which are clear at a glance. But what are these two-dimensional, three-dimensional, x-axis, y-axis, and z-axis? And what are the central projection and parallel projection? How to draw and measure? What is the use of drawing?

Many fresh words, the figure structure of the number of the dots cannot be seen, and the increasing questions made Tao Yande, the Minister of Works, a little dizzy, but this also made him confirm the authenticity of this dot. It turned out that what Liu Yifan said just one or two years ago was not a false statement.

"Is this nephew clear about the things written in this item?" He shouted two days ago, but Tao Yande still shouted at each other, and his old eyes shone with a shimmer.

"The silicon step has not yet started, and it is still a thousand miles away. Unfortunately, the teacher is no longer there, and the student is exploring everything." As soon as the old man's butt was stuck out, Liu Yiuan was busy slapping him tactfully. He had not yet started his teacher, so why did he teach? In one sentence, he blocked Tao Yande's words that he wanted to say again.

"Your teacher is really a master!" After playing a verbal ball, he saw that Liu Yifan had no intention of being a teacher. Professor in the Ministry of Works, Tao Yande no longer forced himself. He casually exchanged a few greetings with Liu Yifan, said a few polite and useless words, and then stood up and said goodbye, leaving, and returned the Liu family to the quiet one by one.

"It shouldn't be coming again, right?" After taking the tea handed over by Chuchu Duan, Liu Yi sighed and brought the tea bowl to his mouth to taste it.

"Mr. Tao was also happy to see the hunt. He was not really an unreasonable scoundrel." Sit down beside his husband, Zhang Chuchu said softly, while wearing a high hat for Liu Yi, he also said good things to Old Man Tao: "It was his husband's talent and knowledge that made Lord Tao feel enchanted to the book, just like when Mr. Tao wanted to win over my father to his work department."

Zhang Chuchu also had some impression of this old man Tao. When Lao Zhang was forced, he extended a helping hand and wanted to pull Lao Zhang into the Ministry of Works to plan things. However, Lao Zhang was a little nervous about the affairs of the officialdom and did not agree.

"So, I have never been really angry for my husband these days. Even if I donate my books today, I also did it intentionally for my husband," Wen smiled and looked at his wife. Liu Yi sipped the tea and said, "This Lord Tao is very good at advancing and retreating, rules, and judging by the rules, and in a very accurate way. No wonder he was able to stay in the position of Minister of Works for decades."

To be honest, Liu Yiu is quite admired by the old man Tao Yande. There are not many officials who can be as dedicated to serving as the public and respecting the wise and the wise as he is. Well, of course, it is rare to be as thick-skinned as him.

"A man is upright and straightforward. This is the fate of Mr. Tao. However, can the Kongming lantern created by his husband really carry people to the nine heavens?" Putting aside the old man Tao, Zhang Chuchu looked at the sky outside the door with some conscience, and said to Liu Yi: "I also want to fly up and see Chang'an under the blue sky. How do I check the samples?"

"That's natural, but if you really want to carry people on the air, you have to wait a while. Now, there are still some dangers." Liu Yiu was not very confident about the half-tone hot air balloon he made. He did not dare to let his wife take risks. The safety issue should be waited for all the skilled craftsmen in the Ministry of Works to solve it.
Chapter completed!