After the prosperous Tang Dynasty

As for the hand-operated fan, Xiao Yansui finally produced two, one was given to Xiao Song, and the other was directly moved to his study.

Although the air conditioner is definitely not working, but even in summer, there are still things like ice cubes, and the plates are placed directly in front of the fan. Although the effect is mediocre, the blowing wind is still cool.

With the fan, the summer in the south of the Yangtze River is finally a little better.In addition, without industrial development, there would naturally be no greenhouse effect and urban heat island effect. The trees in the courtyard are shady, which is quite idyllic.

Xiao Yansui asked Axiu to go to his grandfather Xiao Song, and showed him how to use the hand-operated fan to the servants in the yard. Tough, but, in case it's really worthless to get sick because of this, I simply didn't mention it.

However, when Axiu arrived in front of Xiao Song, Xiao Song himself was rather curious after he gestured respectfully. Twist a little harder.

For things like gears and bearings, Xiao Song would definitely not be able to make them himself. However, when marching and fighting, some ordnance actually have similar structures. Just by identifying them, Xiao Song can still recognize them.

Axiu stood beside him, a little cramped. Seeing Xiao Song's pensive face, he kept turning the handle of the fan slowly. It blows all the white beards into the air.

After thinking about it carefully for a while, remembering that his granddaughter Xiao Yansui was still looking for books related to Mohism's mechanisms, Xiao Song suddenly asked: "Can this structure also be used in some tools for farming, or in water? In the car?"

None of the maids and servants present could answer his question.

The hand-operated fan was brought by Axiu. Naturally, the other people subconsciously looked at Axiu with burning eyes.

Axiu: "..."

After hesitating for a while, Axiu, who was stared at uncomfortably, had no choice but to finally reply in a low voice: "Maybe Liu Niang has some ideas."

"Hmm..." Xiao Song nodded casually, but did not express his opinion directly.

Speaking of which, Xiao Song was born in the direct line of the Xiao family in Lanling, and he himself is actually a person who has never been in the field and done farm work in his life.

It's just that my family has farm tenants in other courtyards of Zhuangzi. From childhood to adulthood, my experience has increased. Xiao Song himself is at this age, so he must be able to see and understand a little bit.

Even though he himself is not a peasant, but in a feudal dynasty with agrarian civilization, farming issues have always been the top priority of the court.

Xiao Song used to be a hands-off shopkeeper who didn't care about everything, and didn't participate in many political affairs. However, now that the old man is an official, after returning to his hometown, he suddenly had associations, and he couldn't help but want to pay attention.

"Axiu go back, I'll think about this matter." Xiao Song finally stopped the fan that was still spinning in his hand, and said casually.

Axiu quickly saluted, and then retreated from the room.

Back in Xiao Yansui's courtyard, Axiu knocked on the door, and soon heard Xiao Yansui's faint voice: "Come in!"

Only then did Axiu push the door in, and when she looked up, she saw that the table in the study, which was actually not small at all, had once again been filled with all kinds of books, manuscripts, and pens and ink. The ones are laid out flat, and for the convenience of browsing, they are basically stacked one on top of the other in a radial pattern with Xiao Yansui as the center.

——This directly led to, in this case, except for Xiao Yansui herself, no one else could help her tidy up the table, so as not to mess up the pages of those books, which would affect Xiao Yansui's first When I wanted to watch it the next day, I couldn't find the content in the first place.

Xiao Yansui finally temporarily stopped the action of flipping through the books in his hands, raised his head with interest, and asked enthusiastically: "Have you brought the fan to Ah Weng? Have you tried it? What do you think? What did Ah Weng say?" of?"

"..." I was taken aback by Xiao Yansui's series of questions. After a moment's hesitation, Axiu quickly came back to her senses, and said with some uncertainty: "He, he said, I don't know about these fans. Things, whether it can be used on agricultural implements, such as waterwheels."

"...?" Xiao Yansui was slightly taken aback, and then opened her eyes wide in an instant.

Axiu was a little confused, so her eyes showed a bit of bewilderment, and she could only ask in a low voice, "Liu Niang?"

Xiao Yansui said casually: "I was only thinking about whether I could get some suitable seeds from the Western Regions or overseas, but I forgot about farm tools."

——After all, Xiao Yansui grew up so big, and in his two lifetimes, he has never been directly involved in farming. In the natural science or extracurricular activities of elementary school, he directly used a plate to hold water to raise a garlic sprout That kind of thing doesn't count.

Of course, the two biggest problems in this work are that Xiao Yansui himself can't figure out which of the so many vegetables in the country are native to this land and which are foreign species, and, In the history of China, what kind of fresh crops were introduced into the country under what dynasties and circumstances.

Of course, tomatoes, or common vegetables such as tomatoes, have the word "Fan" in their names. Visually, they should have been introduced by Fanbang in ancient times...

"Farming tools," Xiao Yansui pondered for a while with his chin in one hand, and after making up his mind, he said, "I'll go to the Zhuangzi at home when I'm free. .”

The improvement of ancient farm tools, in fact, fully reflects the diligence and wisdom of the working people in the long farming society.The problem is that the experience of the working people is passed on by word of mouth, and there are only a few people who can read and write. This has caused the inventions and creations in many places to basically belong to the kind of people who don’t know why they do it, but, The experience passed down by the old people and the further practice of the young have proved the correctness and effectiveness of these laws.

Xiao Yansui did not have a background in agriculture, and she could not systematically describe the development and changes of farming in ancient China. However, mathematics has always been the basis of natural science. She has a better understanding of some knowledge of physics and chemistry. , in actual operation, also have very good practicability.

What's more, even if Xiao Yansui didn't know how to use the plow when plowing the land, as long as it was replaced with a metal that was not so easy to rust on the basis of the same price, it would be a great deal for farmers. A very useful advance has been made.

Just as he was distracted by his thoughts, Xiao Yansui suddenly came back to his senses, and thought carefully about it carefully. The level of smelting in the Tang Dynasty was limited, and the amount of metal mining was also limited. The plows used by farmers to plow the land were still made of wood. Coming...?

In this case, it seems that if it is very difficult to get a piece of iron sheet directly, it may be possible to directly install a sharper hard stone piece on the end of the plow that is pierced into the ground, which may improve some efficiency...

Shaking his head slightly, and temporarily stopping these increasingly expanding associations, Xiao Yansui repeated his decision just now: "I'll go to the fields later and have a look, and then we'll talk about it!"

Axiu didn't know how to answer at all, so she could only bite the bullet and nod in agreement.

Xiao Yansui didn't care either, and waved her hand to signal Axiu to go to other things, and she continued to sort out the approximate ratio of cement clinker.After more than [-] days of tinkering, the cement clinker that Xiao Yansui wanted has basically been calcined in several kilns. As for now, Xiao Yansui plans to use cement, bricks, etc. to build a flower bed in his yard Or build a kennel or something, see the effect, keep it if it is good, remove it if it is not good, and start over.

After a small-scale experiment, the more suitable ratio can be finally determined, and then the finished cement can be used to renovate the old house!

·

It has been a month since Xiao Song and Xiao Yansui wrote to Duke Xu's mansion in Chang'an City. During this period, the grandparent and grandson have naturally received a reply from Chang'an City.

In the letter to Xiao Yansui, Pei's love was palpable, but her daughter was not around, and she couldn't prepare autumn clothes for Xiao Yansui. Besides, there are not no tailors in my hometown. Even in the south of the Yangtze River, because people often raise silkworms and spin silk, the fabrics are so fine and gorgeous that they are actually quite unique compared to the prosperous Chang'an city...

In the end, Mrs. Pei could only read between the lines, talking about how her daughter should eat well every day and be filial to her grandfather. Before the summer was half over, she was already thinking about extra clothes when it was cold in autumn. .

Apart from Mrs. Pei and Xiao Hua's husband and wife, and a greeting letter from Xiao Hengming's face to his younger sister, this time, Xiao Wu didn't know what opportunity he had seized, and even secretly slipped a separate letter to Xiao Hua. Yan Sui's letter came.

After all, they are the two closest brothers and sisters in Duke Xu's mansion, compared to Xiao Heng's, Xiao Wu is the one who really talks about everything with Xiao Yansui when he writes the letter.

"I met Li Tan from the East Palace last time, and he asked me why you suddenly returned to your hometown with Ah Weng. Liu Niang, what are you thinking? In fact, I have never been able to understand this question. "

"That guy looked calm on the surface, but in fact there was obviously a bit of hesitation in his eyes. I knew at a glance that he must want to ask when you will return to Chang'an, so I told him directly, except Other than yourself, no one knows when you want to come back, the way he looks at me seems a little strange =_=”

Xiao Yansui couldn't help laughing while looking down.

In fact, she could also feel that in Xiao Heng's letter, intentionally or unintentionally, he never mentioned the matter of the East Palace. Xiao Yansui also noticed what her brother was thinking, but she didn't think so much herself. I don't bother to explain repeatedly, just let him think about it.

When he arrived at Xiao Wu's place, he probably heard Xiao Heng and Xiao Hua discussing some things occasionally, so that Xiao Yansui should not be distracted by writing some things in the family letter.However, Xiao Wu, who is obviously in the rebellious period of youth, instinctively tends to think that his sister Xiao Yansui is with him, so naturally he has to chatter with Xiao Yansui in detail about any news, Only then can I feel relieved.

Not to mention the sensitive East Palace Li Tan, even Zhao Junzhuo, who had asked Xiao Wu about Xiao Yansui in private, was written verbatim by Xiao Wu.

"Liu Niang, actually I didn't understand why he came to ask me. Zhao Junzhuo and Du Erlang had a good friendship, and he also had a good relationship with our elder brother. Why did he leave elder brother alone and come to me? I think this There must be something wrong inside!"

Xiao Yansui smiled while watching, and couldn't help but secretly slandered that there was more than a problem, the problem was so big that it involved past and present lives at least ten years ago.

Some people can't get past her past.

Xiao Yansui had no intention of disturbing the short memory that had long been dusted by him, and Zhao Junzhuo had never disturbed her again, but he was always trying to pay attention to her silently. Unexpectedly, Xiao Wu looked the same as the thoughtful Xiao Heng in every gesture, but secretly, he kept everything from Xiao Yansui and told Xiao Yansui clearly...