The scorching sun is in the sky, the cicadas on the trees are screaming endlessly, and the frogs under the lotus leaves occasionally make a weak noise. Pen Fun Pavilion www.biquge.info even the wind blowing from the pond is hot and hot, and there is no coolness at all.

Fortunately, Xu Ping had already prepared, so he asked people to connect the bamboo pipe on the top of the pavilion and bring the cold well water nearby. When the water reached the pavilion, it rushed from the south, east and west, blocking all the heat waves out of the pavilion.

Today is the day of the third gathering of the Leak Society, and all the people are gathered.

Sun Qilang and Li Shengrong were squatting on the ground on one side, carefully fiddling with various wooden parts, and the young Su Song bent down to look at it. On the table next to him, Guo Zheng was seriously looking at the drawings.

Yan Su sat in the middle, looking at the parts for a while, and then leaning over to Guo Zheng to look at the drawings.

Xu Ping didn't expect Li Shengrong to have this ability, and according to the schematic diagram he drew, he actually made a small sample of wood in a very short time. Today, they are going to use these wooden parts to create carved samples.

The habit brought by his previous life, Xu Ping cares more about paper work, always drawing drawings completely, to make real samples, and does not like to use wooden samples. However, only Guo Zheng was the only one who could accept Xu Ping's point of view, and he was the only one who could truly understand the three views now and began to learn to draw by himself. When Yansu made the lotus drain back then, he first made a wooden sample, which was exactly the same as the real one, and there was no problem before making the real thing.

One is that the method of drawing is still very primitive, and the design intent cannot be fully expressed, and the cost of making a real sample is expensive, and everyone is used to being cautious. Nowadays, a large number of mechanical parts are still copper, and steel is not used much due to the processing means. Without a reliable machine, Xu Ping would not have been able to change that.

Everyone doesn't think a few copper coins, but once a few catties and dozens of catties of copper are used, many people can't stand it.

Due to the influence of Yan Su, Su Song also put his mind on making wooden samples, and did not pay attention to drawing.

On the other side of the pavilion, Xu Ping carefully fiddled with a small package of glass lenses on the stone table, and said to Wei Pu next to him: "You sit on the stone bench and look at your front with both eyes." - Look at me at eye level, don't move your head, and don't turn your head to look at me! Yes, yes, that's it, steady, don't move! ”

After speaking, Xu Ping picked the thinnest lens and held it in his hand, and took a small wooden spoon in the other hand, got up and walked to Wei Pu's side. first covered Wei Pu's left eye with a small wooden spoon, and said: "Don't be steady, don't move, listen to my orders!" ”

As he spoke, he put the lens in front of Wei Pu's eyes, and then said to Chu Yan on the other side of the pavilion: "Eunuch Chu, hold up the paper in your hand and let Wei Pu identify it." ”

When Chu Yan heard this, he took a piece of paper in his hand to his chest and carefully flattened it.

Xu Ping said to Wei Pu again: "You look through this small piece of glass in front of you and see the words on the paper on the chest of Eunuch Chu. Jia Zhushu points to which you will recognize which, the paper is full of the word 'mountain', you just need to say the direction of the opening. ”

After speaking, Xu Ping nodded to Jia Xian beside Chu Yan.

Jia Xian coughed, picked up the small bamboo pole in his hand, pointed to the top word on the paper and asked, "Where are you heading?" ”

Wei Pu squinted his eyes and carefully identified it for a while, and suddenly said excitedly: "Upward!" - I can see it clearly! ”

Xu Ping shook his head: "The word on the top is the biggest, it's still so difficult for you to identify, this can't work." ”

After speaking, he took the glass piece in his hand from Wei Pu's eyes and put it on the stone table next to him.

Wei Pu has seen things in front of him so clearly for the first time in several years, and as soon as Xu Ping took it, he couldn't help but feel anxious.

Xu Ping picked out another lens that was much thicker from the table and put it back in front of Wei Pu's eyes for him to identify again.

In this era, there was no optical refraction, no electronic refraction, and this primitive method could only be used to fit myopia glasses. It took five or six direct tests to select the right lens for Wei Pu. Xu Ping estimated that after putting on his glasses, Wei Pu's eyesight could reach the point of one by one in his previous life. His myopia is too great, and that's all it can be.

Wei Pu stood up and looked eagerly at the lenses in Xu Ping's hand.

Xu Ping said to him: "You can't use this thing now, you have to find a master craftsman in the field to put it in the frame before you can wear it." These are glasses, and with this thing in the future, you won't be able to see clearly. ”

Wei Pu nodded obediently: "I know, several ministers in the court are wearing glasses to the court!" Mr. took me to see the bells and drums of Xuande Gate, and I saw it from afar! ”

"Their glasses are different from yours, and they wear them because you can't see things that are near, and you can't see things that are far away. This thing means a lot to you, so put more thought into it in the future, and don't study any Liuren Dunjia. In addition to fooling the people, the court does not allow them to be studied casually. ”

Wei Pu nodded: "If you want to be made, remember it, and you will definitely live up to the expectations of the waiting." ――Thank you for making these glasses, so that the little ones can see again! ”

Xu Ping nodded, looking at the lenses in his hand that were as thick as the soles of his boots, he was really speechless. What the hell did this Wei Pu do to make his eyes short-sighted like this, such thick lenses, but they are not light, and he will suffer in the future.

Where would Wei Pu care about this, he only felt extremely excited, as if he was about to fly.

When it comes to talent in mathematics, Wei Pu and Jia Xian have their own strengths. Jia Xian is good at theory, good at abstract thinking, and a little bit of partial number theory. Wei Pu is good at practicality, and his mental arithmetic ability is unparalleled in the world, especially good at solving complex problems.

Mathematics is the foundation of other technologies and is of particular importance, and Xu Ping attaches great importance to these two people. Although he did not yet have the ability to change the views of this era and raise the status of the two of them at once, he could create the most favorable conditions possible for them to concentrate on their studies. One day, they will get a status equal to their achievements.

"It's done! It's done! ”

Sun Qilang stood up, clapped his hands, raised his head and shouted.

Xu Ping approached and looked at the carved wooden pattern they had just pretended. Now the pendulum clock is still very large, more than three feet high and two feet wide, and it looks slightly bulky. The habits are different, the aesthetics are different, and the appearance of this pendulum clock is very different from what Xu Ping was used to seeing in his previous life, and it looks square and simple. Yan Su was a great painter at this time, and he naturally had the final say in appearance, naturally with a kind of elegance, which was completely different from the religious aesthetics of the Europeans in Xu Ping's previous life.

Sun Qilang looked left and right to show off for a while, and said to Xu Ping: "Junhou, do you think this is the case?" ”

"Yes, that's it." Xu Ping nodded, "It's just a pity, it's still the same at this moment, and I can't check the time." ”

Yan Su said: "With a wooden sample, as long as you make it, you are not afraid of doing it badly." It won't take many days to make a real carving, and Xu Beizhi doesn't have to be in a hurry. ”

Xu Ping smiled, turned to look at Guo Zheng, who was lying on the table and buried his head in the drawing, and said: "Actually, just make a wooden sample and look at it, there is no difference from this picture." If you are used to it, you just need to look at the picture and you will know what it looks like. ”

Xu Ping emphasized the knowledge of drawing with these people many times, and even wanted to use Yan Su's art skills to study the theory of perspective. It's a pity that Yan Su is too old to do these things. Moreover, the literati paintings of later generations, he was a figure of the founding grandmaster, and the habit of accumulating years, these pictures look awkward.

Sun Qilang looked at Guo Qian and pouted: "Junhou, it looks like this line and that frame on the map, which makes people dizzy, where can it compare to the wooden sample?" If you want me to say, don't look at the picture! ”

"You know what? Nonsense! Xu Ping glared at Sun Qilang, "How much time does it take to draw?" How long does it take to make a wood sample? And as long as you know how to read, you can draw pictures and read pictures after teaching a coach to practice, but this wood pattern cannot be made by a skilled craftsman. Don't talk about others, if there is no Lee Shengrong, can you do it? ”

Sun Qilang looked at the pendulum on the ground, hesitated for a moment, and finally didn't talk back. This moment is too complicated, and there are a lot of small parts, which is a little difficult to make by yourself. But if he said that he would not be able to do it, he would not accept it.

Yan Su knew in his heart that the drawings were stronger than the wooden samples, but he was old and frail, and his thinking couldn't keep up, so he really didn't have the strength to work it. And there is no wood sample, and there is really no bottom in my heart.

Seeing that the young Su Song on the side looked up at him, Yan Su patted him on the shoulder: "Xu Beizhi is right, the picture is much more convenient than the wooden sample, and it is also convenient to draw according to the drawing, and it is easy to keep." I'm too old to learn the art of cartography. You are still young, and you will learn from Judge Guo in the future. ”

Su Song nodded, biting his lip and not speaking. He was only fourteen or fifteen years old, and he was somewhat recognizable, and he was relatively silent with these people. Only Yan Su met him since the last time he entered the Chongwen Academy, and he was optimistic about him and had more contact.

Xu Ping's temperament seems easy-going, but it is actually difficult to intersect. Everyone can speak, and they can get along happily, but they basically don't have close friends. As a human being in two lives, there are too many things in his heart, and his heart is as deep as the sea. And when you get along with others, if you don't give your heart to others, how can others give your heart to you?

Li Shengrong stood to the side, rubbing his hands constantly, and he was a little excited in his heart. As a humble craftsman, he was able to sit with several high-ranking officials, which was something he couldn't think of before. And Xu Ping really treats him as an equal, eats and drinks when he rests, and never looks at him differently.

For Lee, this kind of experience is more precious than making a pendulum.

And Chu Yan, Jia Xian and Wei Pu, their tasks are different. Others are making engraving pendulum products, but they are studying the principle of engraving pendulum. If nothing else, it is just a cycloid, since Xu Ping told them, it made them feel extremely magical, as if a new world had been opened.

Although the cycloid has nothing to do with the pendulum principle, it is as isochronistic as the pendulum, which helps these people to broaden their minds. And the movement of the real pendulum seems to them to be less difficult.

After all, the pendulum clock is too bulky to carry, and Xu Ping wants to make pocket watches that are easy to carry in his lifetime. Those who use a hairspring, which is different from the pendulum principle, can only rely on these people. (To be continued.) )