"Xiangyang cannon?" Ma Jun is obviously extremely unfamiliar with this name. Ma Chao explained: "The so-called Xiangyang cannon is a kind of movable, rotatable large detachable catapult, the trebuchet in the past often needs hundreds of people to pull the tip, manpower is difficult to achieve the most ideal effect, and this car uses gravity and the principle of lever to fire, the range is longer, the stone projectile is heavier, and the power is greater."

During the Song Dynasty, the Mongol soldiers attacked the fortified city of Xiangyang for several years without success, and then caused the return cannon from the Western Regions, and used this heavy siege weapon to break through the city of Xiangyang in one fell swoop. It is said that this kind of catapult can throw 50 kilograms of boulders 2 to 300 meters away, and can reach 3 to 400 meters with 20 or 30 kilograms of stone bullets. If you add a winch or press a few more stone sacs, you can launch five 10-kilogram stone bullets at a time.

In fact, the principle of the Xiangyang cannon is very simple, that is, the principle of levers, the counterweight at the end of the short force arm, and then the long force arm is pulled down with manpower or animal power and put on the stone bullet, and after release, a very fast initial velocity can be obtained, so as to give the stone bullet a great kinetic energy, in order to achieve the purpose of destroying the city wall and smashing the soldiers defending the city.

Ma Chao only understands the principles and calculation formulas, but it is very difficult for him to make a Xiangyang cannon, of course, simple is definitely not a problem. But isn't fighting on the battlefield child's play? Ma Chao wants to make the Xiangyang cannon is by no means a simple trebuchet, first of all, it must have a strong mobile surname, divided into three models, large, medium and small, at least to facilitate disassembly and transportation; Secondly, the power is large enough, if this cannon is completed, there is no strong city in the world, and the attack and defense are integrated, and the city head can also be installed with a fixed Xiangyang cannon for defense; The last item is the issue of technical secrecy, and it is necessary to set up an artillery team to specialize in the Xiangyang artillery, and it is necessary to strictly control the core technology, and it is better to destroy it than fall into the hands of the enemy.

Ma Jun is a famous master mechanic in history, as long as he tells him the principles and requirements, the design scheme, materials and components do not need to be bothered. Coupled with the modern physics and mathematical knowledge in Ma Chao's mind, it is not difficult to design and manufacture a perfect Xiangyang cannon together.

The more the two chatted, the more speculative they became, during which Ma Chao instilled in him some calculation principles of levers and pulleys, and even knowledge of angles, parabolas, and gravitational acceleration and impulse. Ma Jun only understands the principle, but he can't calculate the specifics, such as a two-ton counterweight falling from a height of five meters, how far can a 50-kilogram stone bullet be thrown at a 45-degree angle with a 1:5 lever? Ma Chao can solve these problems, after all, this is only a topic for high school students in later generations.

Subsequently, Ma Chao mentioned some repeating crossbows, bed crossbows and the working principle of the stirring stone thrower, Ma Jun was full of fanaticism when he heard this, and he could often draw inferences from one case and put forward deeper insights, which can be described as full of confidence. In the end, Ma Chao handed over Ma Jun to Fu Zhu, and arranged for ten carpenters, ten blacksmiths, and one hundred miscellaneous servants to be dispatched by him.

The next time, Ma Chao received Chen Lin, Xun Yu and Han Fu in the Hussar General's Mansion. Speaking of these three people, we have to start with Han Fu, when Han Fu was in power He Jin was appointed as the pastor of the state, and He Jin was killed by the eunuch not long after Han Fu failed to take office. After Dong Zhuo entered Beijing, he wantonly recruited and appointed famous people, and Han Fu was called by Dong Zhuo to Luoyang to serve as the Luoyang Commander, which is equivalent to the mayor of Luoyang. At that time, Xun Yu had just been promoted to filial piety, and he was appointed to guard the palace order in the imperial court (in charge of the emperor's pen, ink, documents and other items).

Both of them were loyal to the Han Dynasty, and Dong Zhuo's abolition of Emperor Dong caused great dissatisfaction among the two, and he resigned and returned to his hometown in Yingchuan shortly after Liu Xie took the throne. But the matter did not end there, and later Zhang Ji's uncle and nephew led troops to plunder Yingchuan, and the war broke out again. Yingchuan was originally the place of the four wars, and in order to avoid the war, the two of them rushed to Jizhou, which was politically stable and had strict laws, to take refuge, and happened to meet Bo Chenlin, the former general of He Jin, who was also taking refuge.

The three of them had already seen Ma Chao's recruitment order, and considering that the Empress Dowager Yongle and Princess Wannian both lived in Yecheng, they readily agreed to go out. Therefore, as soon as Ma Chao came back, he introduced these three people.

Ma Chao also knows these three people, Chen Lin is one of the "Seven Sons of Jian'an", with outstanding literary talent and good resourcefulness, and he can be regarded as a first- or second-rate strategist. Although Han Fu has some pus, it is still useful for managing internal affairs.

Xun Yu is a bit spicy, this person is definitely a die-hard member of the Han family, in history Xun Yu first voted for Yuan Shao, and then saw that Yuan Shao was difficult to achieve a big deal and turned to Cao Ying, is the chief strategist and hero of Cao Ying's unification of the north, in the construction, conspiracy, Kuang Bi, and many achievements, for Cao Ying recommended Zhong Xuan, Xun You, Chen Qun, Du Xi, Guo Jia and a large number of talents. Later, he was taboo because of his opposition to Cao Ying's proclamation, was transferred from the center, and died of depression in Shouchun.

Although it is a trouble for Ma Chao to use Xun Yu, he can recruit Guo Jia, Xi Zhicai, Chen Qun and others through Xun Yu, after all, these people are not loyal to the Han. Besides, Ma Chao is not in a hurry to be called the king and the emperor, it's a big deal to be like Cao Ying, and let his son be the emperor after he hangs up, the most important thing at present is to control the world in his hands.

After greeting and entering the table, Ma Chao hugged his fists and said: "The three daimyo Ben Hou have also heard of it, especially Wen Ruo, as early as three years ago, Ben General sent someone to Yingchuan to invite him, but I don't know if Wen Ruo has ever received a handwritten invitation letter from Ben General?" ”

Xun Yu was born in 163 at the age of 28, while Han Fu and Chen Lin were both nearly 40 years old. Hearing this, he hugged his fists and said: "Thanks to the champion Hou Jiaai, Wen Ruo did meet a young man who claimed to be Meng Da two years ago, and he also received a handwritten letter from the general. However, at that time, he couldn't get out because of trivial matters, and later he was promoted to filial piety and honesty into the court as an official, so it has been delayed until now, and the rude place is still looking at Haihan! ”

"It doesn't matter! Anyway! Ma Chao said and raised his glass and said: "Today, Dong thieves are entrenched in Luoyang for the common people, so that the gang is often in chaos, the legal system is completely empty, and the people are miserable. ”

The three of them were silent when they heard this, Xun Yu said: "With all due respect, the champion Hou was born in a famous family, rose from Xiliang four years ago, and became famous in a battle against the Southern Xiongnu rebels, and then it was out of control. Dare to ask the champion Hou Suoxing's Han is the big man of the Liu family? Or is it the big man of the Ma family? ”

Ma Chao had a headache, he was most afraid of being asked this, and thought about it: "In the past, I said in the recruitment order that the world is the world of the people of the world, and the Han I am Xing is neither the Han of the Liu family nor the Han of the Ma family, but the man of the world!" After the world is calmed, what the surname of the Han Dynasty is not something that can be decided, but also depends on the hearts of thousands of people in the world! ”

Xun Yu's face sank when he heard this, and he suddenly got up and said in a fierce voice: "The whole world is not the king's land, the shore of the land is not the king's minister, the champion Hou is of noble birth, and he has been favored by the emperor many times, but he does not think about the king of diligence, but he says such a big rebellious word, how loyal was General Fubo to the Han family back then?" Doesn't the champion Hou feel ashamed of his ancestors? ”

Ma Chao was stunned for a moment, and secretly scolded this Xun Yu for being an extreme loyalist, and he couldn't even listen to ambiguous words. At the moment, he said: "Freezing three feet is not a cold, the Han family will fall, it is by no means an overnight effort, how can the question of the ownership of the world be determined?" Now that the princes are divided, the heroes are competing for hegemony, and the Dong thieves control the court, it is really difficult to determine who will die in the end, although the general has a temporary advantage, but he does not dare to say that he will definitely be able to calm this troubled world! From the ancient road: Those who win the hearts of the people win the world, is this statement wrong? ”

Xun Yu hugged his fists and said: "If you don't have the same aspirations, you don't agree with each other!" Leave! Then he got up and left.

Han Fu stood up and looked at Ma Chao, then looked at Xun Yu's back, sighed and followed, while Chen Lin drank a glass of wine and said loudly: "Hurry!" Great! Champion Hou is open-minded, quick to speak, and admires below! ”

Ma Chao was depressed for a while, and said with a wry smile: "Since you come together, why don't you leave?" ”

Chen Lin asked rhetorically, "Why are you leaving?" Isn't it in the eyes of the champion Hou Fa! ”

Ma Chao laughed, shook his head and said: "A heroic person should have a unique vision, thanks to love, and he will be reused!" It just so happens that the General's Mansion still lacks a chief in charge of clerical work, so I wonder if Kong Jian is willing to take this position? ”

Chen Lin got up and hugged his fists and said, "So I don't dare to ask for it!" ”

Ma Chao was overjoyed, thought for a while and said: "Ben Hou wants to vigorously promote education under his rule within two years, and Ben Hou will personally write and compile teaching materials, but the pronunciation of Da Han characters is different due to different accents, and many obscure characters are even more blurry and illegible. There is an important task entrusted to you and Guanglu Doctor Ma Yueyan and Cai Yong, if it can be completed, it will be a great credit to the descendants of the legacy! ”

Chen Lin said: "Champion Hou, please speak, Lin dares not to do her best!" ”

Ma Chao said with a smile: "Don't be in a hurry, Ming said that Ben Hou will set up a banquet in the mansion, and invite you and the other three to discuss at that time!" ”

Although Chen Lin didn't know what medicine was sold in Ma Chao's gourd, he was not in a hurry. The next time, Ma Chao set up a banquet in the house, and invited Cai Yong and Ma Yueyan, two great writers, to come over, and after three rounds of wine, he hugged his fists and said: "Chao has long had the heart of rejuvenating education under the rule, and now I invite three great Confucians to come to discuss this matter, and I have a proposal to ask you to refer to it!" After a pause, he said: "The Chinese script comes from the ancient oracle bone inscription, and it has been developed for thousands of years before it is called today's script. Before the pre-Qin period, there were still great differences in the scripts of various countries, and although the Qin Dynasty unified the six countries, the pronunciation was still different due to the different accents of each place. After great consideration, it was decided to simplify the text, correct the pronunciation, clarify the meaning of the word, and pass on the complete, unified and more mature text! What do you think? (To be continued.) )