So Su You imprisoned several more people, including their good friends Liu Zhengfu, a student of the Imperial College, Huang Shang, a scholar from Yanping, Fujian, and even Wang Zhongyu, the son of Wang Gui, and Xing Ju, the son of Xing Shu.

Get up, practice and learn, and... brush up on questions.

Liu Zhengfu was a Tai student whom Su You admired very much. His men were talented in literature and his heart was upright.

Although he was a humble student, he dared to write an anonymous article criticizing the court for treating Su unfairly. When the flood came, he took the initiative to help Kaifeng Mansion go up the embankment to fight the flood. His outstanding ability was chosen as a leader by the students.

Su You also specially reviewed Liu Zhengfu's performance evaluation in Taixue. He was a top scholar, he was not averse to all kinds of knowledge, and he was smart and motivated.

Su You felt that among the older generation he had met, Liu Zhengfu was almost as close as Feng Jing and Zhao Bian.

Huang Shang has a somewhat strange origin. This child is a relative of Huang Lu, a famous scholar on Fujian Road, and Huang Lu's father-in-law is Shen Kuo; Huang Lu's son-in-law is Lu Huiqing.

Judging from this line, Lu Huiqing has to call Shen Kuo grandpa!!!

The seniority is a bit random. The funniest thing is that although Huang Lu was an anti-New Law person, he was listed as a member of Wang Anshi's party and now serves as the censor Zhongcheng in the court.

So Su You received two letters and a post, one from Nanhai, one from Luokou and one from Yushitai, asking him to take care of this son, saying that he was Wen Kui's young son from Fujian Road.

The ecology of the Song Dynasty was like this. The relationships among the scholar-bureaucrat families were very complicated.

For example, Feng Jing's daughter married Cai Que's son.

As for Han Jiayan's family, they are almost related to most of the famous families in the Song Dynasty.

Sometimes Su You thinks that the so-called "obey your father at home and your husband when you get married" is not unreasonable.

Without this provision, the younger couple in many scholar-bureaucrat families would have their heads broken in bed.

No matter how the elders are in the court, the relationship between the younger generations is now very harmonious, and everyone has their own opinions.

Xing Shu and Wang Gui also expressed their relief that their son was imprisoned by Su You.

Is there such a poisonous person as Uncle Yang in this world?

Similarly, they all believed that Su You's imprisonment of his son in Ke Zhen Hall would only do them good and no harm.

Neither of them had completely broken up with Su You. Although there were secret arrows flying around the court, they both dared to leave their sons with Su You with confidence.

This is also the greatest affirmation of the Su family’s character.

Are you kidding me, Su Wenshuo eats mutton, and there are countless secret books with strange texts in Ke Zhen Tang, including the mysterious treasure that Su Mingrun used to steal Tanhua.

In the Song Dynasty, when Wang Gui and Xing Shu were considered as Jinshi, they were so well-intentioned that they did not care about their face for the sake of their son's future.

Su You didn't care about this aspect. When he heard that Su Mai came over to tell his young master that he had a few friends with outstanding literary talents and that they were going to meet up for half a year of retreat in Ke Zhen Hall and have a decisive battle in the examination room, Su You just asked for more information.

Who are all, and then said "Oh" and told their nephews and disciples to be humble, ask others for advice, and look after and help each other.

As for food, accommodation, pens, ink, paper and inkstones, Xiao Yaoye will take care of it for you.

…

Bianjing, side hall.

Zhao Xu was with Su You and Feng Jing, watching a new army team brought by Su You tinkering with a magical thing and gossiping about it.

According to Su You, this thing is called a telegraph machine.

A telegraph machine needs a power source, and the power source is a battery.

The lead-acid battery was actually born when Su You and Xiao Tianshi met for the first time. The temporary and crude equipment used to electrolyze water can also be regarded as the initial model of the lead-acid battery.

Afterwards, Ishitomi used it for electroplating and etching to add delicate texture or coating to the metal surface.

This is a necessity, and it is also the great secret of Sitong. The textures as thin as hair on the handles of many scribes' folding knives and the impressions of treasure banknotes are simply unbelievable to outsiders. In fact, they are just metal parts sealed with wax.

Then use the tip of a needle to scratch off the wax layer and add it to the DC electrolytic bath to etch it.

During this process, batteries have been continuously improved for ease of use and long-lasting and stable performance. In addition to ordinary lead-acid batteries and dry batteries, Sitong and Tianshifu have now begun to study how to charge lead-acid batteries.

This transmitter now uses series-connected dry batteries as its power source.

A dry battery is a chemical battery that uses a paste electrolyte to generate direct current and can only be used once.

The electrolyte is a non-flowable paste, with a positive carbon rod in the middle, a mixture of graphite and manganese dioxide, and a fiber mesh. The mesh is coated with a thick electrolyte paste. Its composition is an ammonium chloride solution.

and starch, and a small amount of mercury preservatives.

The outermost layer is a shell made of metal zinc, which is the negative electrode.

Battery discharge is the electrolytic reaction between ammonium chloride and zinc, and the released charge is conducted from graphite to the positive carbon rod.

The electrolysis reaction of zinc will release hydrogen gas, which will reduce the battery power, so Tianshi adds a coating of manganese dioxide mixed with graphite on the outside of the positive electrode to absorb hydrogen.

With the development of this set of things today, Sitong and Tianshifu have made it very clear and thorough, and the application has also become quite mature.

After Su You raised the topic of accelerating communication speed, he gave Little Heavenly Master the golden finger of the magnetic cutting line.

This thing is the key principle for charging motors and lead-acid batteries, but there is still a long way to go. Without diodes, there is no way to make a rectifier. Direct current can only be output through brushes and steering gears.

But Su You doesn't need these now. These are topics for future research by Tianshifu and the Royal Institute of Technology. He only needs two pointers that can be driven by small coils driven by direct current.

When one pointer moves, it means 0; when two pointers move together, it means 1.

With this, the light signals used by the navy can be converted into signals indicated by the pointer, and the navy's code book can be used.

In order to achieve accuracy, Zhang Tianshi sacrificed some efficiency. Before the sound generator was developed, it was unreliable to distinguish between long and short signals, so he adopted such a signal system that had never been seen in history.

This requires two loops for collection, two loops for transmission, and eight plastic-coated copper wires as cables.

Su You also went to Chen Zhaoming to invent an algorithm that added a check digit to each signal. Through logical algorithms, the correctness of the signal could be verified at the receiving end to avoid information errors caused by partial loss of the signal.

This science and engineering team is affiliated with the Royal Military Academy, and its project is codenamed "True Listening."

The clock in the side hall pointed to Sichu, and with the melodious sound of the bell, the pointer of the telegraph began to shake.

The team leader turned around and said, "Your Majesty, Prime Minister, and Duke, we have received zero and one requests from the Tianshi Mansion."

This is a set of codes. Some basic codes are occupied in telex messages for rapid communication.

Zero zero one means requesting communication.

Su You nodded: "Reply and prepare to receive it."

The transmitter has two buttons. Pressing one button will only connect a single channel, and pressing the other button will connect two channels. The members of the group were skilled in the operation and responded instantly that the reception was ready.

After a while, the two pointers for receiving the signal began to shake again, and two recorders were nervously recording the signal.

It was a form. After the recording was completed and verified to be correct, the team leader handed it over to the translator, who read through the decoding book and recorded each word in the last space of each line of the form.

In fact, this code is also regular. The translator is an ace signalman drawn from the South China Sea Fleet. He has all the codes in his mind. However, in order to be foolproof in front of His Majesty, the translator still checks the code book.

once.

Soon, the team leader handed the translation to Su You. Su You smiled and handed it to Zhao Xu.

Zhao Xu couldn't help but feel happy when he saw it, and handed it to Feng Jing.

Feng Jing took it over and took a look. There were six words written on the decoding table, "The sky rains with millet, and the ghosts cry at night."

This is an allusion from "Huainanzi Benjing Xun": "In the past, Cangjie wrote books, and the sky rained grain, and the ghosts cried at night."

Zhang Tianshi compared the invention of the telegraph to Cangjie's creation of Chinese characters.

Su You bowed and said: "Your Majesty, please tell me how to reply."

Zhao Xu smiled and said: "This is difficult for me. Both of you are knowledgeable people, so you should come up with it."

Feng Jing's heart was agitated: "The Tao Te Ching says: If you don't leave your home, you can know the world; if you don't peek into the window, you can see the way of heaven."

"The creation of this divine weapon by the Heavenly Master coincides with the forty-seventh chapter of the Tao Te Ching. There must be God's will in the dark. How about saying, 'You know it when you don't do it, and you know it when you don't see it.'"

Su You smiled and said: "The Prime Minister's words are extremely wonderful, but there is nothing more appropriate."

ps: Book recommendation, "The No. 1 Cruel Man in Southern Ming Dynasty", the author is also lv5. Traveling through the Yongli Emperor Zhu Youlang, the sun and moon shine on the bright earth, the whole world will surrender, I will not surrender. Fight against the Qing Dynasty, I will fight against the Qing Dynasty

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Chapter completed!