The Xu family of Wei Guogong has more than a dozen gardens in Nanjing.

The compilation group of "Datong Zhengyin" was arranged in the East Garden of Sijinyi, and there were more than ten pavilions in it.

Fang Yizhi first returned to his hometown in Tongcheng, and then went to Nanjing again with several large boxes of manuscripts to apply for a compiler. Among the several large boxes of manuscripts, there are about two or three catties of manuscripts, which are specialized in phonological knowledge.

He has already compiled "Cutting Rhyme and Sound Original", "Medical Association" has also been compiled, and "Deletion and Supplementation of Materia Medica" still needs to visit and collect information.

As for "Physics Knowledge", it is being written, and he has been writing it for nine years.

"Excuse me, is Mr. Yu Shan available?" Fang Yizhi asked.

The porter, a disabled soldier, put out a booklet and said: "Register yourself, report your name and place of origin, and you can enter after receiving a sign." ”

Fang Yizhi entered the garden with the manuscript in his arms, and in the lobby of a pavilion, more than 20 people were arguing.

When Fang Yizhi came to the lobby, no one paid attention to it, because everyone was busy arguing.

Standing next to him and listening carefully, Fang Yizhi was directly stunned.

How can there be such a compilation?

Modern Chinese is composed of initials, finals, and tones, and ancient Chinese is similar.

However, the detailed specifications of the Yayan of the past dynasties only have the rules for cutting the rhyme of the initials and finals, and the requirements for the tone are very general. Therefore, the same character can be cut into similar sounds by different dialects, so as to achieve the effect of "harmony but difference" can communicate with each other.

That is, only the tone class is constrained, not the sound value.

Zhao Han's request is outrageous, and the sound value of each word must be determined!

Qian Qianyi's gang was sitting together, and they were about to hit the dog's brain. Even if the Jianghuai dialect is used as a model, the accents of each state and county are slightly different, which hometown should be based on the pronunciation value?

Since compilation, the progress has been zero, and there have been quarrels all day long, and no one is willing to give in.

Now it is divided into two factions, one group believes that Nanjing dialect should be used as the standard, and the other faction believes that Huizhou dialect should be used as the standard. If Fang Yizhi joins in again, it is estimated that there will be one more Tongcheng faction.

Liu Ru was annoyed by the noise, clapped his hands and said, "Gentlemen, listen to me, listen to me!" ”

After shouting for a long time, everyone finally shut up.

Ruan Dacheng also joined the compilation team, he has an identity as an opera artist, and if he can write opera, he must be proficient in rhyme.

Liu Ru smiled and said: "It's better to invite a top opera troupe to come and sing one fold at a time." Let them use different tones and rhymes, sing and recite the lyrics several times, which one is beautiful and pleasant, which one is easy to say and remember, let's choose which one shall prevail. ”

"Haha, that's a great statement!" Qian Qianyi clapped his hands in admiration.

Wu Bing, the author of "The Great Companion", also came, and he couldn't help but say: "I also write opera, and I don't discriminate against operas." can compile a country's positive sound, and in the future, it will be implemented in the world, according to the singing words of the troupe, does it seem a little not solemn? ”

"Otherwise, no," Ruan Dacheng said, "when it comes to pitch and sound, who can compare to the play?" Let them sing and recite the various tones several times, and then we will choose from them what is good to listen to, to remember and to say. ”

It may seem like child's play, but it is the most useful.

Whether it is Qian Qianyi or Liu Ruyi, they must speak with a dialect accent. And those famous actors and actresses, but they are all correct and round, which can be regarded as having the level of an announcer.

Liu's proposal was unanimously approved!

As a result, this group of people compiled "Mandarin", that is, they lived in the landscape garden, listened to the opera troupe singing every day, not to mention how nourishing the life was.

Fang Yizhi put down the manuscript, clenched his fists and said, "Mr. Yu Shan! ”

"Haha, the secret is here, and you have to get a big talent." Qian Qianyi said with a smile.

Liu Ru looked at Fang Yizhi carefully: "This is Fang Mizhi?" ”

Qian Qianyi introduced: "Mizhi, this is Liu Yinliu, who is the vice president of the compilation of Datong Zhengyin. ”

"I've seen Liu Jun." Fang Yizhi gave his hand.

Liu Ru returned the salute and said, "Mr. Fang, I'm afraid you have to go to Jiangxi, and the head town is asking about your whereabouts everywhere." ”

Fang Yizhi was stunned: "Mr. Zhao is asking everywhere? ”

Liu explained: "Someone in Jiangxi Province offered a strange book "Institute of Physics", and Mr. Zhao inquired curiously and learned that this book was printed by Your Excellency, and Your Excellency is still writing a similar physics book. Mr. Zhao would like to discuss physics with you. ”

"I see." Fang Yizhi felt interesting, Zhao Han actually liked physics.

Someone offered "The Book of Agriculture" before, which was appreciated by Zhao Han.

Chen Zilong's dedication to the "Complete Book of Agricultural Administration" was also appreciated by Zhao Han.

So scholars from all over the country went to Ji'an Mansion one after another to offer messy strange books.

Someone dedicated "Institute of Physics", the author of this book Wang Xuan is a native of Jiangxi and is Fang Yizhi's teacher. After the "Institute of Physics" was written, Fang Yizhi was also responsible for printing.

Wang Xuan has died of illness, but Fang Yizhi is still alive.

Moreover, Fang Yizhi thinks that the "Institute of Physics" is not comprehensive enough, and some of the content is also debatable, and he wants to write a better book by himself.

Fang Yizhi left the draft of "Cutting the Rhyme and Sound Original", took a few boxes of manuscripts, and went to Jiangxi by boat.

Fang Yizhi, who came back from the north, came to Jiangxi and became more and more emotional, what kind of hellish life did the people in the north live?

Arriving in Ji'an, Fang Yizhi handed over the prayer post, and was immediately summoned, which made him a little flattered.

"Meet the Town!"

"Sit down, don't be formal."

Zhao Han didn't have time to be idle, so he took out the book "Institute of Physics" from the cabinet and commented: "This book is quite rare, but it is not written deeply enough and is not accurate enough. ”

Fang Yizhi hurriedly rewarded the manuscript: "Zongzhen, this is the draft of "Physics Knowledge" below. It was written nine years ago, but it has not yet been completed, and many contents need to be observed and verified. ”

Before the crossing, Zhao Han had not watched "Physics Knowledge".

Moreover, the draft that Fang Yizhi took out was different from the later "Physics Knowledge". Because of the original draft, after the Manchu Qing Dynasty entered the customs, Fang Yizhi lost most of it on the way to the south, and a lot of the content was rewritten.

At that time, Fang Yizhi should have been very desperate, not only was the country ruined, but the manuscript that he had written for more than ten years was also lost.

The secretary brought a bowl of tea, and Fang Yizhi sat next to him to drink tea and wait.

Zhao Han opened those drafts, and the first chapter was the summary of the book. And the ink is relatively new, it is estimated that Fang Yizhi wrote it a few days ago, and he specially wrote it out and took it to Zhao Han to read.

This summary can be summarized as follows:

First, the world is made of matter.

Second, matter is made up of "qi", and it is not right to discuss "reason" without "qi". (Confucianism has always had a dispute over reason.) ）

Third, all things can summarize laws, and unknowable things can be speculated through known things with specific laws, and even the entire universe can be speculated.

Fourth, everything has its own properties and laws, which need to be observed and verified.

Fifth, during the Wanli period, Western knowledge came to China. There is a big problem with Western learning, which is too obsessed with observation and verification, and neglects to explore and summarize the laws of the operation of things.

Zhao Han couldn't help but laugh after reading the general theory, Fang Yizhi actually despised Western natural science, thinking that Western learning was superficial and ignored the exploration and summary of laws.

Isn't this kind of argument a criticism of ancient Chinese science by later generations?

It's the other way around.

"Tongji, quality test, these two words are well used!" Zhao Han said approvingly.

Fang Yizhi put down the teacup and arched his hand: "It's just a family's words." ”

Tongji: The internal law that runs through everything.

Quality measurement: Observe and study the morphological performance of things.

Zhao Han changed his words and asked, "How to connect Tongji with quality testing?" ”

Fang Yizhi thought for a moment and replied, "Empirical." ”

Zhao Han opened the main text of the draft, and he saw that his head was big at the beginning, and it was full of mysterious celestial phenomena and qi theories.

Zhao Han directly skipped and didn't look at it, and went to read the "Theory of Light".

Fang Yizhi believes that the sky condenses the essence of its yang attribute to form the sun. The moon and the stars, as well as everything in the world, including humans, use the sun's rays.

These statements are half wrong and half right.

The moon does borrow sunlight, but the stars shine on their own. Plants and trees do depend on sunlight, but artificial ignition is not the reproduction of sunlight.

Next, Fang Yizhi referred to the reflection and refraction of light as the phenomenon of "light transfer".

The content of astronomy is very interesting, and Fang Yizhi believes that the heaven and the earth are round and the place is only to explain the virtues of heaven and earth. The earth is like a blown bean, in the center of the universe.

Well, geocentrism says.

Zhao Han did not continue to look down, closed the manuscript and said: "I think that the study of physics, general data and quality measurement in parallel, if you can't carry out empirical evidence, it is better not to write a book and talk about it." This is a mistake for others and for yourself. ”

Fang Yizhi was a little unconvinced, and asked, "What does the general town think is wrong?" ”

"The five elements of yin and yang, it is best not to mix them, and they cannot be directly regarded as Tongji (the law of all things)." Zhao Han said.

Fang Yizhi asked rhetorically: "Is the five elements of yin and yang wrong?" ”

Zhao Han explained: "Whether it's right or wrong, don't care about it first, and don't put everything on top of the five elements of yin and yang. ”

After reading the first part of "Physics Knowledge", Zhao Han finally knew what was wrong.

Fang Yizhi was too deeply influenced by the traditional view of the universe, and when he came up, he used the five elements of yin and yang to explain the universe, and directly made the framework of the physical world wrong. It is difficult to come up with modern science along this path, but the Western method is more useful.

Seeing that Fang Yizhi didn't speak, Zhao Han asked, "Do you know math and geometry?" ”

"Yes." Fang Yizhi nodded.

Zhao Han guided: "Everything is common, why not use mathematics to express it?" ”

"How is mathematics expressed?" Fang Yizhi was confused.

Zhao Han pointed to the inkstone in front of him and said with a smile: "Let's study the simplest phenomenon first, such as this inkstone." I pushed it, why did it move? ”

Fang Yizhi frowned and said, "Naturally, you have to move." ”

"What force did it take?" Zhao Han asked.

Fang Yizhi replied: "The boosting power of the fingers of the head town. ”

Zhao Han asked, "Since you are under force, why do you stop?" ”

Fang Yizhi replied: "If the town no longer pushes it, it will no longer be forced, and it will naturally stop." ”

Zhao Han asked again: "But after I pushed, the fingers have been released, why does it continue to move for a distance?" It stands to reason that when I let go of my finger, the inkstone should have stopped immediately. ”

Fang Yizhi fell into deep thought.