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When Shi Xun first returned to Xu Du, he went to visit Zheng Xuan, the old gentleman was seventy-two years old, but his spirit was still very strong - but according to Shi Xun's vague memory, he should not have a few years to live.

This time I went to Zheng's mansion to visit, and it happened that Ren Yan was also there, and there was a Guoyuan Zini, a native of Le'an, who once followed Bingyuan, Guan Ning and others to avoid chaos in Liaodong, because I heard that the teacher had left his hometown, and Cao Jun had recently won Jiaodong, and the road was smooth, so he returned from crossing the sea and was recommended by Zheng Xuan to Cao Cao to serve as Sikong Peng. After a few words of greeting, the topic turned to the scriptures, and Zheng Xuan asked Shixun because of this: "Wen Hongfu was in Hedong before, reopened the county school, and went to the apprenticeship in person, are you?" ”

Shi Xun couldn't help jumping in his heart, and said that I tampered with the classics and talked nonsense with Hedong, and everything would not be spread to Xu Du, right? Originally, each family has its own law, each has its own opinion, and it can be debated, but Zheng Xuan is his own teacher, and it is impossible for his academic opinions to be too far away from the teacher, otherwise he will be suspected of bullying the teacher in this era...... Unless you have Zheng Xuan's ability, you can directly defeat the teacher Ma Rong. Hurry up at the moment: "The kid is not knowledgeable, if there is a lie, Mr. forgiveness." ”

Fortunately, with the degree of information transmission in these years, Zheng Xuan can only hear that Xun went to the county school to give a lecture, and it is really not easy to inquire about the specific content of the lecture, so he did not blame, but encouraged him because Xun Neng paid attention to culture and education. After finishing, he said: "Hongfu can enter Cao Gong, so that all counties will be restored to the county school, and it will be a great achievement." ”

Shi Xun hurriedly expressed his position and said that I would go and talk to Cao Cao, and then take this opportunity. The matter of appropriating funds to create a water division was proposed. Before Zheng Xuan could say anything, Ren Yan next to him said first: "The murder weapon of the soldier." The saint had to use it as a last resort, why not educate with etiquette and music, so that Liu Biao and Sun Ce would be subordinated to the king? If you can be sent to travel, so that you can fight and return to peace, wouldn't it be better than building a boat to train soldiers? ”

It's Hoon who pouted secretly, which is really a nerd's opinion. After all, in front of Zheng Xuan. He didn't want to refute Ren Yan too fiercely, but just smiled slightly: "The former Liu Biao worshiped heaven and earth in the suburbs of Xiangyang, and he crossed the Jiuhan Wang, that is, Zhao Weiqing (Zhao Qi) went to admonish, and he couldn't move, and the situation was good?" It is the greed of those who know people, and there are those who cannot be moved by words. Therefore, Confucius had no choice but to punish the young and righteous, if it can be said, how could Confucius drown in torture? He is blocked by the Yangtze River, so he resists the king's master, sets up a powerful water division, and takes away his natural danger. It is a force that can be forced to surrender, and a soldier who surrenders without a fight. ”

He said this not only to Ren Xuan, but also to Zheng Xuan. He knew that although Old Man Zheng also advocated the use of force to unify the world, he was a scholar after all, and he still thought that the army was dangerous and fierce. It's best not to fight if you can, so what he said: I don't want to fight. It is necessary to make the court absolutely stronger than the local princes, and then force it to be able to pass on the throne - the creation of the sailor is precisely this purpose.

Sure enough, as soon as these words came out, Zheng Xuan couldn't help but nod his head: "Xi Shun dances and Jiumiao is suited, and the cadres are not Zhengsheng Wen Dance, but they are subdued by virtue, and even more so by Weiling, and then they can kill the soldiers." What Hongfu said is true, but the treasury is not full, and I am afraid that the support is limited. ”

Yes Xun said it doesn't matter, it's better than nothing, let's take our time, anyway, don't be in a hurry - we have to wait for Yuan Shao to be leveled first, and Liu Biao, Sun Ce and others can only be put on the agenda.

Even if he got a relatively satisfactory answer, he then asked Zheng Xuan a few more mathematical questions—Zheng Fuzi is also a contemporary arithmeticist—and then left. Sure enough, the next day, Cao Cao recommended Lu Su to serve as the Taishou of the Lujiang River, and ordered him to form a water division in Pengli - Peng Li was scattered on both sides of the Yangtze River in Poyang Hubei in later generations, and dried up (or turned to Poyang Lake) in later generations, half of which was in the territory of Lujiang and half in the territory of Yuzhang. Zheng Xuan, the great farmer, also stated that a certain amount of materials would be allocated as the cost of army building.

Lu Su went to the palace to receive the edict, knelt down and retreated, and when he came down, he looked for Shixun, saying that the edict had been issued, what do you have to do, hurry up and say it. Shi Xun first asked: "Do you know what equipment is the first to fight on the river?" ”

Lu Su said that of course the bow and arrow came first, and I heard that some small stone throwers could be placed on the boats to attack the enemy ships. Shi Xun smiled: "There are still two things, which can win the bow and arrow." As he spoke, he took out two patterns from his arms and unfolded them for Lu Su to see.

Due to geographical limitations, the number of large-scale water battles in ancient China was very small, and it was impossible to compare with the countries bordering the Mediterranean, so there were not many relevant records left, and they were vague. Shixun had read a lot of history books, but he couldn't grasp the tactics of water warfare at all - in this regard, he basically had nothing to help Lu Su. He could only remind Lu Su that occupying the upper reaches and upper hand in the battle would greatly improve the degree and agility of his own ships, so for the hydrology and coastal climate of the Yangtze River, long-term observation and summary of laws must be carried out in order to be invincible.

Speaking of the later Battle of Chibi, a big reason why Cao Cao was defeated was that he was not familiar with the local climate - if he knew in advance that the southeast wind might blow, would Cao Cao fight the old people who fought against the fire?

In addition, Shixun also provided Lu Su with two weapon maps. The first painting is a "slap pole", which may have been revealed after the Jin Dynasty, that is, two V-shaped long poles erected in the bow of the big ship, one straight pole is a pillar, the other is an oblique rod, one end is tied to a heavy object, and the pulley and rope are connected to the pillar, when it is close to the enemy ship, the rope is released, and the gravitational potential energy of the heavy object is used to slap and destroy the enemy ship.

The second is the powder jar, that is, a clay pot filled with gunpowder and filled with a twist, which is very similar to the gunpowder jar that Cao Cao originally put in Guandu with a "thunderbolt car", but the size was reduced, and it was thrown by manpower to ignite the enemy ships. The inspiration for this thing was that Hiroshi read a few books on Japanese history, and remembered that in the 16th century, the Maori navy used a weapon called "baked jade" or "baked fire arrow" to defeat the Oda navy in the Battle of Kizu Kawaguchi - in fact, this powder jar - and later Oda Nobunaga built ironclad ships and used a large number of tubular firearms to defeat and win the second Battle of Kizu Kawaguchi.

It stands to reason that since the Japanese already have relatively advanced tubular firearms such as arquebuses, there is no reason why they will not release rockets, but it must be reasonable to use "baked jade" to destroy the enemy instead of rockets in battle. Yesun knew it but didn't know why, so he simply copied it, and didn't recommend the rocket he was developing to Lu Su - a gunpowder arrow for the purpose of arson, I believe that as long as Lu Su mastered the gunpowder, he would definitely be able to think of it, and his rocket driven by gunpowder is too poor at present, so he won't go to the Yangtze River to sacrifice ugly......

Shi Xun had already obtained Cao Cao's consent in advance, and planned to continue to transport some gunpowder to Lujiang, and Lu Su could build a workshop with public funds to make zuò and reserve gunpowder jars. In fact, according to Shi Xun's original intention, it is best to hand over the gunpowder formula to Lu Su, let him develop it directly in Lujiang, and save it from Xudu again, but unfortunately Cao Cao refused, and took care of it repeatedly, and the gunpowder formula must not be leaked. It was Xun Xin who said that if he could really block the possibility of a leak, then he would dare to do it, but judging from the confidentiality awareness and confidentiality measures in these years, the difficulty is quite great. In ancient warfare, there were few technologies that could not be stolen, unlike after entering modern times, there was not enough industrial base, and even if it was stolen, it was extremely difficult to imitate - Western arquebuses were introduced to Japan less than ten years, and the Japanese learned to imitate, and there were technological innovations, not to mention the black powder formula that is still very rough now? It's only been a few years since you saw it, and even most of the cavalry of the Yuan family have been equipped with stirrups.

But since Cao Cao gave the order, Shi Xun naturally didn't dare to disobey, so he had to work harder, make more gunpowder, and then travel thousands of miles to Lujiang to transport it - just take this opportunity to squeeze more research funds from Cao Cao.

Lu Zijing went to Lujiang to take office in a few days. At the end of April, Jun Ningping's three-year term expired, and he was recruited by Cao Cao as the history of the Sikong Order, and he lived in Xudu for a long time. With the help of Shixun, Shijun was able to rent a house at a reasonable price in the capital city, which was "not easy to live in", and took his wife over - his wife was the daughter of the Tobu Fu clan, the nephew of Dr. Nakasan Fuwan, and the sister of Queen Fu. Although there is a difference between personal temperament and family education, after all, they are both eunuch misses, Cao Miao and Fu seem to be able to talk very well, and they soon became close friends from each other.

In a few months, it was Xun who finally built Xu Du's book printing workshop, and he did not hide his secrets, officials, families, if he wanted to learn printing and copycat book printing workshops, he was all welcome, but there were two conditions: first, you have to pay tuition; Second, there are already workshops in Yingchuan and Hedong, and repeated construction is not allowed.

Because although Shixun used public funds to build these two workshops, he didn't spend a copper plate on himself, but because the official treasury was not sufficient, the scale could not be large, and dozens of children's books could be printed every day, which was completely in short supply. The purpose of Xunjian's book printing workshop is not to monopolize production, make a lot of money, and not to enrich the official treasury (in this single industry, no matter how big the income is, it is limited), his purpose is to popularize cultural knowledge, so naturally he is not afraid of other people's copycats.

As for the development of new detachable "thunderbolts" and rocket weapons, there has also been some progress, but Xie Zheng's waste research has not been able to find a suitable poison ball. Shi Xun hasn't been very busy in the past few months, and he has all the officials under his command anyway, but he has always been a little uncertain - Fu Zhu is not dead yet, Xu You has not surrendered yet, what good strategy will they come up with for a counterattack?

Occasionally chatting with Xun's uncle and nephew, Guo Jia, and even Jia Xu, what would you do if you changed places? But even these resourceful men couldn't come up with any good solutions. Of course, Shi Xun wouldn't think that Fu Zhu or Xu Yu were more clever than these people combined, but after all, they were all in Xu Du, and it was inevitable that there would be blind spots in thinking about problems. If there is no major change in the shape, Cao Cao will fight Hebei again in the autumn of this year, and he will have the opportunity to defeat Yuan Shao in one fell swoop, but ...... There are still a few months to go, and who knows if he will be blessed with a moment of happiness and come up with any clever ideas?