Xu Guangqi's illness is more than a month, but this disease has neither fever nor diarrhea and edema, which is difficult to describe except for himself. Pen, fun, and www.biquge.info

In the past month, those guests communicated with Xu Guangqi several times, leaving some books and about 600 taels of silver, saying that they asked Xu Guangqi to find some talented young people to go to Fujian.

It is Confucianism for the body, science for use, the benefit of the king, the elimination of disadvantages in Anbang, etc., Xu Guangqi also felt that it was quite reasonable, so he agreed one by one.

Later, these guests asked Xu Guangqi to write some letters of recommendation, and these people wanted to travel to various places. Xu Guangqi didn't agree at first, but later these people talked about oil lamp oil and other things, saying that they heard that a place named Sichuan in Fujian also used this method to drill wells, so they wanted to see and see, and the complementarity was insufficient, so Xu Guangqi knew that these lamp oils actually came from underground.

Since he knew that it came from underground, he couldn't help but think of the word oil written by Shen Kuo of the Song Dynasty, and asked about some refining methods.

These guests said that this thing can be illuminated, lit with candles and no need to cut candles, and can be hung in front of the horse as a horse lantern, the price is cheaper than the people's profit and harmless.

Since the land and rocks in Kyushu are converging, it is believed that China also has oil, so I hope to learn the technology and mine it here in the future.

Not only does not fight for land, but also does not disturb the people, and can also collect the benefits of the hungry and homeless, Xu Guangqi knows that this matter is extremely difficult, but he does not want to give up, at least be prepared.

In addition, these guests said some "chemistry", "pigments", "ores" and other things, and said that when they were in the Netherlands the year before last, they had seen a lot of blue and white porcelain, which was known as the purest thing that only gods and angels could use, so they wanted to go to Jingdezhen to see.

Xu Guangqi traveled extensively, and he was a native of the eunuch forest, and he knew good friends in Sichuan, Jiangxi and other places, so he wrote several letters.

These people either went to Zigong in Sichuan or to Jingde, Jiangxi.

On the one hand, he went to learn some of the techniques here, and on the other hand, Chen Jian also took this opportunity to let some people in the party see the upcoming Jingdezhen civil uprising.

Look at the forms of struggle there and the contradictions between clans, fellow villagers, official kilns, private enterprises, artisan households, hired laborers, pigment monopoly families, and disputes between official kilns and private kilns over clay, accumulate experience, and write first-hand reports for analysis and study.

This can be said to be the first-hand information of the Ming Dynasty's burghers rioting and fighting for interests, far more accurate than their own speculation, how to say that this year is also an important year in the history of porcelain, so I remember it very clearly.

Zigong salt well after hundreds of years, the level is far from Chen Jian's imagination, there is a lot to learn, at least the drill bit is broken and fell in the oil well area of Nan'an is still a big problem, Zigong salt well has long been solved, and the thousands of meters of wells can be called a mysterious thing, but people rely on bamboo to do it, the wisdom of the people is unlimited, why not take this opportunity to sort out the system.

In addition, after the Jingdezhen Rebellion, the identity restrictions of many craftsmen and craftsmen have also been relaxed a lot, and it is profitable to find opportunities to hire a few to come back, exchange technology and summarize experience. Keep pace with the times, this point should also be noted, otherwise in a few years the British Wedgwood will counterattack in ceramics.

These things used Xu Guangqi half-truthfully, and basically achieved their goal, leaving Xu Guangqi with only a heart that could not be calm for a long time and the chaos of the three views, and it was difficult to sleep every night, which was really painful.

Xu Guangqi recalled the three views mentioned by those guests, and basically summed it up in twelve words: the immortality of matter, the eternal way of heaven, and the constant change of the universe.

From the basic theory of particles to the reasons for fertilization, Xu Guangqi also clarified the general concept of these people's views on change and immutability: after death, people are turned into fertilizer and return to the earth, the earth nourishes grass, trees, rice and wheat, cattle and sheep feed on plants and trees, and people eat cattle, sheep, rice and wheat...... The particles do not change, but the heavens and the earth change all the time.

As for the soul, these people didn't say anything, so they gave Xu Guangqi a lot of room to think. However, the son said to worship the ghosts and gods and stay away, the Lord said heaven and hell, and the Buddha said the six realms of reincarnation...... Even if we accept those twelve words on the material level, how should we face them on the soul level?

Once people start to think about this problem, and when the problem is that many things they believe in contradict each other, it is inevitable that they will not be able to taste and describe it as withering......

The story of his visit to Fanbang has spread in Shanghai and its surroundings, Guo Jujing has come to enlighten him several times, and students have repeatedly come to visit, but once he starts to think about these things, it is not one or two people who can say clearly, but only by self-realization.

But on this day, one of Xu Guangqi's students came to visit.

This student's surname is Sun, his name is Yuanhua, his name is Chuyang, and he is from Jiading.

Xu Guangqi's family was poor when he was young, and he made a living by teaching middle school children, and even before the entrance examination after the middle school examination, he also taught in Shanghai. Shanghai is adjacent to Jiading, so Sun Yuanhua also studied here, and the two are familiar with each other and are known as teachers.

Sun Yuanhua's family is wealthy, and he is also after the eunuch forest, he does not worry about food and clothing, he is curious about strategy since he was a child, and he learned geometry from Xu Guangqi, but he has no enterprising mind, and he puts down the four books and five classics and indulges in geometric algorithms.

Sun Yuanhua is Xu Guangqi's disciple, and it is common for him to come to the meeting, so he walked into Xu Guangqi's study by himself without informing.

A few days ago, he also heard his teacher tell the story of those Fanbang people, and he flipped through the book "Arithmetic and Geometry", and he was immediately fascinated.

These days, the benefactor is sick, and many disciples are worried, but he laughs.

Everyone didn't understand what he meant, he only said that the story of the seven days of the new Berg thing to see the bamboo, and said that Mr. was enlightened at this time, and if there was an epiphany one day, it would be a major event worth celebrating. Everyone laughed, but he didn't care.

Walking into the study at this time, Xu Guangqi was not in the study, only a new book of half volumes.

Sun Yuanhua thought, the teacher or go out to take a walk, this book is placed here, it must be that he has realized this book, and he can't help but be curious, so he picked up the book and read it carefully.

The title of the book is "Summary of the Classic Battles of the United War", the title of the book is strange, but I was fascinated by it at first glance.

There are illustrations, formations, and even a few "illustrations" that Sun Yuanhua has never seen before, which are lifelike. He only regarded it as Fanbang's painting method, and couldn't help but be amazed, but this black and white color can paint things as if they were seen with their own eyes.

What surprised him the most was an illustration called "Cement Model with Forts", which was drawn with an ink pen, using geometry and arithmetic, to explain in detail the range, position, fan, dead end, and intersection of the musket.

Originally, I had just heard it, but when I looked at this picture, even though there were still many words I didn't understand, I could understand what I was saying by feeling.

When I saw some of the trigonometric functions and fortress guards, the use of the two-power algorithm and artillery correction introduced later, I was even more fascinated.

There is a saying that Wen Ke is hungry and intoxicating, and before he knew it, it was dark, and he picked up the match that his teacher showed him a few days ago, skillfully lit the kerosene lamp, and when he was adjusting the brightness, he felt that there was someone behind him.

When I got out of the book, I realized that I had been reading it for a whole day, and at this time it was already dark, and the teacher was behind him, so he quickly got up.

Xu Guangqi smiled and said: "Chuyang, I saw that you were fascinated, so I didn't call you." What, what do you get? ”

"Teacher, this book was also given to you by those Fanbang people?"

"Of course."

"Good book. What a book. ”

"Did you see the pages I was reading?"

"See. The student is stupid, and I don't know why the teacher likes these pages the most and annotates them? ”

The pages on which Xu Guang used the pen standard were a classic battle in the unification war of Chen Jian's side decades ago. It is neither a siege, a siege, a fortress, nor a surprise attack, an ambush or a strategic lure, but a classic daytime battle.

There is a lot of space, and Chen Jian also describes in detail the terrain from the beginning of the battle, the layout of the two sides, the artillery equipment, the position of the reserves, and the timing of the cavalry attack.

Compared to the rest of the classic battles in the book, this is a non-classic battle, and even the generals of the winning side perform far worse than the losing side, and the final battle is a defeat battle rather than a war of annihilation.

Sun Yuanhua watched the introduction of the previous battles, and this novel way of introducing the battles opened his eyes, especially when he saw a few examples of winning by a strange plot.

Therefore, he didn't quite understand why his mentor had made a lot of marks at the back of this battle, and felt that this battle was really lackluster, and even if he was in command, the results might be better than this.

Xu Guangqi smiled but didn't answer, looked at Sun Yuanhua, and said for a long time: "Chuyang, if it's too late today, you can take this book back and read it carefully, and then talk about it in ten days." You're just scratching the surface now, and you can't explain it clearly. ”

"Teacher, if you want to understand this book, how can ten days be enough? It's the previous baston article, if Mr. hadn't taught me geometry, I would only have been able to read one or two of them. ”

Xu Guangqi smiled: "I'm just letting you read these pages, not reading the whole book." It only takes a few days to read the whole book, but it takes three years to understand it, and it takes five years to understand it. Ten days of reading, but swallowing dates, good reading does not seek to understand, this is a taboo in learning. ”

"Yes."

"Go ahead."

Sun Yuanhua said goodbye, holding the book and was about to leave, but Xu Guangqi stopped him, handed over a kerosene lamp and said: "Take this too, the candle is swaying and hurts your eyes, this oil lamp is bright, and it is most suitable for night reading." ”

After saying that, he sighed again.

"Why is the teacher sighing?"

"Marvel at how wonderful this oil lamp is. The glass is transparent, the silk buckle is neat, and it is actually a thing that can be used by citizens on weekdays in that republican country. I'm not lamenting their wealth, I'm not afraid that's it, but ...... Isn't it a pity that the craftsman who made the rotating thread of the oil lamp could make the thread lock of the fire bolt in an instant if a war broke out in one day? ”

After speaking, he sighed again, waved his hand and asked Sun Yuanhua to leave.