*****

In the back office of the governor's yamen, Qin Mu and Song Yingxing had been "arguing" for a whole hour, at least Li Shi and Niu Wanshan, who were guarding the courtyard gate, thought that the two of them were arguing, anyway, what Qin Mu and Song Yingxing were arguing about, the two of them basically couldn't understand.

is Dong Xiaowan, who is well-read, and she doesn't understand anything when she listens to it, and the things that Qin Mu and Song Yingxing argue about are basically things that she has not dabbled in.

At this time, Dan Wen Qin Mu said: "Lord Song, there is no evidence, you won't believe these things I said for a while, it's better like this, let's do a few experiments, and everything speaks with facts." ”

Qin Mu seemed to have been prepared, he took out some soda ash, dissolved it into a basin of water, and then took out a cotton coat, soaked one sleeve of the cotton coat into the basin, soaked it and picked it up to dry, in the process of drying, Qin Mu was not idle, and drew a few geometric figures with a brush, and asked Song Yingxing to solve it.

Euclide, a Westerner, wrote the "Original", and the Italian Matteo Ricci went to the Ming Dynasty to preach during the Wanli period, bringing 15 volumes of the "Original". At that time, Xu Guangqi, a scholar of the Hanlin Academy, was very interested in Western studies, and translated the "Original" brought by Matteo Ricci into Chinese and named it "Geometric Original".

Most of Song Yingxing's geometric knowledge came from Xu Guangqi's translation of the "Geometric Original", while Xu Guangqi actually only translated the first 6 volumes of the 15 volumes of the "Original", all of which were relatively shallow geometric knowledge.

Qin Mu's several geometry questions were deep and shallow, and after Song Yingxing solved one, he was stumped by the latter ones, and the back office calmed down, waiting for the sleeves of the cotton coat to dry, Qin Mu pulled up Song Yingxing, who was buried in the geometry questions, and then said to him: "Look again, now I dissolve the alum into water and mix it into 30% alum water." ”

After mixing the alum water, Qin Mu soaked the sleeve soaked in soda ash water into the alum water, and then picked it up and continued to dry

After doing this, Qin Mu was not in a hurry to explain. Pulled Song Yingxing back to the stone table in the octagonal pavilion, and personally verified those geometry questions for him, well, they are all some geometric knowledge learned in junior high school, in order to fool Song Yingxing, Qin Mu has been preparing for many days, and sorted out all the geometric knowledge that he can remember;

These questions put Song Yingxing's stumped geometry problems into his hands, but I saw that while he wrote the corresponding formulas with a pen, he explained them in detail in simple terms, not to mention Song Yingxing. Even Dong Xiaowan, who was helping to polish the ink on the side, also roughly understood.

After explaining it through, it took a long time, and at this time, the sleeve that had been soaked in alum water was basically not dry, Qin Mu dropped the pen and said to Dong Xiaowan: "Come on, change clothes." ”

Dong Xiaowan was simply called by him as a little girl, and these days, she is also used to it, she took off her robe for Qin Mu. Under his instructions, the cotton clothes that had been soaked in soda ash water and alum water were put on Qin Mu's body.

At this time, Qin Mu personally lit a torch that was ready to be haode, and said to Song Yingxing: "Lord Song. I'll put my arm on the flame later, and you'll see what happens. ”

The torch was burning, and everyone knew it. Cotton clothes are easy to catch fire, Qin Mu actually wanted to put his arm wearing cotton clothes on the flames, and the cotton clothes were on fire. Isn't that?

Song Yingxing and Dong Xiaowan who were present were shocked, Dong Xiaowan couldn't help but blurt out: "Don't you" She originally wanted to persuade Qin Mu not to do this dangerous thing, but after saying two words, she stopped again.

Qin Mu smiled and slowly moved his arm towards the torch, Song Yingxing and Dong Xiaowan both held their breath, their eyes wide as they watched his left arm approach the flame little by little, and Zuihou stopped on the flame.

"Ahh Seeing this thrilling scene, Dong Xiaowan let out an exclamation and couldn't help but close her eyes, she really couldn't bear to look at the tragic scene that was about to happen. However, as soon as her eyes closed, she couldn't help but open them again, which surprised her that something happened.

The cotton clothes were not ignited by the torches as quickly as she expected, Qin Mu's arm even stopped on the torches for a while, under normal circumstances, the cotton clothes would definitely be ignited if they were left on the flames for such a long time;

But when Qin Mu pulled his arm away from the torch, the sleeve that had been soaked twice and dried was still complete and had not been ignited, Dong Xiaowan couldn't believe what he saw, was this a trick?

Not only Dong Xiaowan was unbelievable, but Song Yingxing didn't know why, Qin Mu smiled at this time: "Lord Song has seen it, this is the special effect of the chemical reaction between soda ash and alum solution. ”

The facts are there, Song Yingxing no longer argues with him, but humbly asks for advice: "Lord Qin, can you explain the truth in this." ”

"Lord Song, please listen to me carefully, that's the case, this sleeve is soaked in 30% soda ash solution first, and then immersed in 30% alum solution after drying, and then dried, so that there are two chemicals on the sleeve, soda ash is alkaline in water, and alum is acidic in water, and after they react, in addition to generating water, they will also produce a thing that is insoluble in water, I call this kind of thing aluminum hydroxide, so in fact, the cotton cloth is surrounded by a layer of aluminum hydroxide film, When the aluminium hydroxide is heated, it turns into alumina and water, and it is this layer of alumina wax that protects the sleeve from ignition when I place my arm on the flame. ”

"Lord Qin, wait, what's the itch?"

Uh, what is light itching? It's just not too itchy, just a little bit.

Qin Mu smiled and said to Song Yingxing: "This hydrogen and oxygen are a kind of gas, and water is composed of these two substances, so let's do an experiment for Lord Song tomorrow to explain the existence and role of oxygen, well, hydrogen is more troublesome, let's do it later."

To convince those masters of science and mind, Qin Mu admits that he doesn't have that ability, but if he wants to convince a scientist like Song Yingxing, if Qin Mu can't do it, he will die headlong.

He sent Yu Laosi to bring people to forcibly tie up Song Yingxing, and he had already made preparations, for a person like Song Yingxing who was keen on scientific research, it was enough to take some small chemical experiments done in junior high school in later generations.

After the two of them sat down in the octagonal pavilion, Qin Mu said with emotion: "Since the Han Dynasty, my China has been dominated by Confucianism. Confucianism says that it is tolerant of all rivers and rivers, but in fact it is very repulsive to other doctrines, such as what we have just done, it is even condemned as a strange skill;

As everyone knows, everything in heaven and earth has its own reason, and Confucianism's rejection of these physics is tantamount to detaching from reality and talking about benevolence. I agree with Mr. Zhuo Wu's statement: Dressing and eating is human physics.

As the so-called cangli knows etiquette, food and clothing are sufficient and knows honor and disgrace, only when the people of the world are fed and clothed, can we talk about benevolence and etiquette. And if you want the people of the world to be well fed and warmly clothed, it is precisely inseparable from these strange skills and tricks rejected by Confucianism, in fact, these strange skills and tricks rejected by Confucianism are the cornerstone of the survival of Confucianism;

Without the development of various jishu, the yield of agriculture and mulberry cannot be increased, the social productivity is low, the material is scarce, the whole society will be difficult to get rid of ignorance and barbarism, and the Confucian benevolence and morality are just jokes;

Therefore, it is completely wrong to dismiss these things as tricks and tricks, and even to say that they are forgetful behaviors. I can disdain Wu Youdao, who admires science, but I have to have great respect for Mr. Song, because without a person like Mr. Song, these basic things that promote the progress of the whole society cannot be improved. The people may not be able to learn science, but they cannot eat without clothes. ”

Qin Mu's courtesy to Song Yingxing really made him speechless, Qin Mu was a governor anyway, and he had always held a disciple salute in front of Song Yingxing, and judging from Qin Mu's knowledge today, Qin Mu was not inferior to him Song Yingxing in this kind of knowledge. This made Song Yingxing very ashamed.

And Qin Mu's words made Song Yingxing feel a sense of sudden enlightenment, he liked to study these miscellaneous studies since he was a child, but it was only out of personal hobby, and he didn't think too deeply, let alone Qin Mu's statement, because this is definitely not tolerated in Confucianism. But listening to Qin Mu today, I have to admit that what Qin Mu said is very reasonable.

Qin Mu continued: "Confucianism needs to be promoted, but I am more inclined to the original ideas of the Confucian sage, and now the science that has been extended has distorted the doctrine of the Confucian sage too much, and I am too lazy to discuss this;

What I mean by this is that Confucianism needs to be promoted, and that knowledge, which is rejected by Confucianism as a virtuosity, must also be vigorously explored and studied for the benefit of all people. This time, I invited Mr. Song by unacceptable means, because our Ming Dynasty is too short of talents in this area, and only Mr. Song alone I know is enough to convince me, so I did this method. I also hope that Mr. Song will forgive me. ”

When Qin Mu said this, he got up and bowed respectfully, if Song Yingxing met a bosom friend today, Qin Mu's insight just now had already made him deeply impressed, and he didn't dare to hold it up at this time, so he hurriedly got up and saluted: "Lord Governor tortures me, there is no order to learn, Lord Qin is so knowledgeable, the subordinate officials are ashamed of themselves, they are ashamed of themselves." ”

Qin Mu shook his head and said sincerely: "Mr. Song is wrong, what I know is actually only a scale, I learned a little from a missionary, but many of these things are unknown to the reason, and these need to be verified by Mr. Song seriously;

This time, I will rebuild Yuelu Academy, and I will list these so-called strange skills and tricks as an important subject, and all students admitted to the academy must be involved in this aspect, and I invited Mr. Song to come precisely to ask Mr. Song to be a professor;

In addition to teaching, Mr. Song is also responsible for leading students to do some practical research, Mr. Song rest assured, I will definitely support Mr. Song, no matter what Mr. Song needs, how much money he needs, I will do my best to provide it. Please also ask Mr. Song to give in. ”

After Qin Mu finished speaking, he was the best in terms of etiquette.

********************

PS: Ask for a monthly pass, ask for a monthly pass.

(To be continued......)