Zhang Fen was very serious when working, but he didn't talk much. Apart from technical issues, he rarely took the initiative to chat with Wei Ba. Today, when talking about Yu Fan, he was also inspired. After saying a few words, he probably felt that it was inappropriate, so he stopped.

He put on his mouth, his slightly thick lips tightly pursed, his eyes a little confused.

His appearance looked very much like Wei Ba was an engineer in his previous life, and he couldn't help but want to say a few more words to him.

"Yu Gong is proficient in form of form?" Morphology is what later generations called geometry. Wei Ba did not know that Yu Fan was also proficient in mathematics.

"Yu Gong is a master of Yixue. He is proficient in Yixiang. I believe he has good at metaphysics." Zhang Fen smiled embarrassedly. He rolled up his sleeves, and his fingers were full of ink traces left by the lines.

Squatting there, like a honest and simple craftsman, there is no sign of the children of aristocratic families. If he doesn't say it himself, no one would want to associate it with Zhang Zhao, who is proficient in "Spring and Autumn".

Wei Ba did not understand Yi Xue, nor did he understand Yi Xiang, nor did he know what Zhang Fen said right or wrong. However, he was not very interested in the mysterious science of Yi Xue, and always felt that he was similar to the scammers who were fortune telling and divination on the street.

"It's hard to say that morphology is actually pure mathematics, and it should have little to do with Yixue..."

"I didn't expect that joining the army is still familiar with Yixue?" Lu Lan walked over and happened to hear Wei Ba's words. He couldn't help laughing: "As a result, I want to discuss with joining the army. I don't know if joining the army is willing to give my face or not.

.”

Wei Ba laughed indifferently: "The lieutenant will be disappointed. I know nothing about Yi Xue. I dare not make a joke about Lu's family's Yi Xue. As for me, I just know some tricks and tricks, which will make the lieutenant laugh."

The Lu family is a prominent family in Jiangdong, with family knowledge. Lu Xun's uncle, Lu Ji, the real head of the Lu family, was proficient in Yixue. It is said that when he died a few years ago, he left his last words, saying that the world would be unified in sixty years. Wei Ba Ji

I don't know when the Three Kingdoms were unified, but the time should be similar, so I think if this rumor is true, then Lu Ji is really a little trick. But he really has no good feelings for Lu Lan. This scholar is a bit harsh and the habits of aristocratic families are very good.

It is heavy and difficult to get close to, so when talking to him, it is inevitable that he will be a little thorny.

Lu Lan was a little embarrassed. The Lu family was good at Yi Xue, but they wanted to ask Wei Ba to build the siege machinery. This is enough to show that the so-called Yi Xue is not useful, but he must admit that Yi Xue is useless, but he must not

He was too lazy to be calculating with Wei Ba, and bowed: "General, please come."

Wei Ba stood up and smiled at Zhang Fen, who had not said a word after coming in from Lu Lan: "Brother Zhang, I will come here. Then we will talk about some knowledge that can be used to the world."

Zhang Fen nodded awkwardly, his face slightly red. Wei Ba patted the hem of his clothes and left first with great strides. Lu Lan was very angry, but he couldn't have an attack, so he had to froze his face and follow Wei Ba.

When we arrived at Lu Xun's tent, Wei Ba did not report it. He broke into the door as soon as he flipped the tent. He saw a woman in white talking to Lu Xun, and was stunned. Lu Xun was not like those particular generals, and he never brought him around.

The maid, and the woman didn't look like a maid. He glanced at him on purpose. The woman was not pretty, but very pretty, but her eyes looked very similar to Lu Xun, and she was a little bit of a pride hidden deep. Wei Ba noticed

, what she holds in her hand is the design drawings he provides.

Seeing Wei Ba come in, the woman quickly got up, but did not avoid the inner tent, but instead knelt behind Lu Xun and lowered her head.

"I'm from the sister." Lu Xun said lightly: "Ziyu, I'm not sure about a few questions. I want to discuss them with you."

Wei Ba was very surprised. Lu Xun was over forty years old, but this woman was only sixteen or seventeen years old. He thought it was Lu Xun's daughter or something. He sat down, took the drawing, took a look, and said lightly:

"If you have any unclear things, please tell me just by saying it."

"I know this is the siege cart you designed to attack Fancheng, but now I want to attack Xiangyang. The height of this siege cart is not enough, so why not increase it any more?" Lu Xun said in a calm tone as usual, and he didn't look happy.

, there is no intention of being angry.

"Add to increase the weight of the siege truck will be too high and it will be inconvenient to push."

"It's inconvenient to push, just add some wheels." Lu Lan followed in and happened to follow Wei Ba's words.

Wei Ba glanced at him and said slowly: "Increasing the wheels will also increase the length of the big car, and will not reduce the load on each wheel." He stopped for a while and continued: "And it will backfire."

, efficiency does not increase but decreases."

"Since it's increased at the same time, why is it backfire?"

Wei Ba closed his mouth and refused to answer this question. Lu Lan was a little angry and was asking. The woman raised her head and signaled Lu Lan not to be angry with her eyes. She said in a harmonious voice: "The efficiency of joining the army refers to the people who are pushing the cart.

Is it light compared to the number of soldiers carried?"

Wei Ba glanced at her in surprise, hesitated for a moment, and nodded.

The woman continued, "Join the army said that increasing the length of the cart will reduce efficiency. Does that mean that the efficiency will be the highest only when the cart is a square with equal sides?"

Wei Ba was even more confused. What kind of monster is this? How could he see the mystery at once? His design of this car seems simple. Anyone can imitate one, but it contains a lot of optimized designs.

But it is not something that ordinary people can see. You can imitate, but you cannot surpass it. This woman can see this, and he already finds it very difficult.

"Yes."

The woman's face turned slightly red, but she looked at Wei Ba without any concession: "Can you please give me a detailed explanation?"

Wei Ba frowned, turned his gaze to Lu Xun, and coughed: "General, I can help you build combat equipment, but I have never said that I have the responsibility of teaching. I have no knowledge. This is my secret ability. Doing this...

...It seems not suitable, right?"

Lu Xun looked at him and turned around and exchanged a helpless look with the woman. The woman was a little disappointed. She pursed her lips gently, lowered her head, stood up and gave a gift, and retreated into the back tent. Lu Xun rubbed his hands and mocked himself.

He said, "I was rude. Ziyu didn't want to say it, so don't say it. So, can't this car be raised any longer?"

"It's not that you can't increase it any more, but increasing it will inevitably increase the size and increase the number of people pushing the cart. There will be fewer soldiers who can actually participate in the battle. In terms of military force application, some of the gains are not worth the cost."

"Then Ziyu help me change it. To attack Xiangyang City, the height of this big cart is really not enough to rely on." Lu Xun pushed the drawings to Wei Ba and patted them gently. Wei Ba took the drawings and thought about them for a while.

After a while, he drew a new sketch, and handed it to Lu Xun, saying, "General, this is the best improvement I can make. If the general is not satisfied, I can't help either."

Lu Xun took the drawing and took a look, and his eyes lit up. Wei Ba changed the siege cart as wide as the upper and lower to shrink layer by layer, increasing its height by one third, enough for the top-level people to attack.

At the head of Xiangyang City, the total size has not changed much, and the number of people pushing the cart does not need to increase, which can be said to kill two birds with one stone.

"Zi Yu is really brilliant." Lu Xun praised sincerely, put away the drawings, and said earnestly: "Zi Yu, the battle tools are almost ready, I am going to launch an attack tomorrow. After you go back, you must invite General Wu to join us.

, General Meng guards Fancheng well and must not make any mistakes."

Wei Ba nodded, with a slight disapproval on his lips. When the Shu army attacked Fancheng, Lu Xun was watching. Even when Sima Yi was at the city, Lu Xun did not fulfill his ally's obligations. Zhu Ran and the other three stayed on the boat, with their feet

Not even stepping on the north shore. Now that the Shu army has conquered Fancheng, the Wu army is still preparing combat equipment in an orderly manner. This is clearly to let the Shu army be cannon fodder, and Sima Yi and the others are all outside Fancheng. There will be more Wei troops in two days

Come here, the pressure on the Shu army will be very high.

After all, Lu Xun was still unwilling to treat the Shu army as cannon fodder, and he was ready to leave at any time. However, when things came to this point, it was not so easy for him to leave. The time to attack Xiangyang was ripe, Lu Xun

If they want to leave without sending an arrow, Sun Quan probably won't agree. In contrast, the Shu army is different. Their contributions have been made enough, and their harvest has exceeded expectations. They can leave at any time. They have severely damaged the Wei army 20,000.

Many people captured a navy army in vain. For the Shu army, which had a total force of only 30,000, this record was already impressive enough that no one could tell anything.

"General, don't worry, we will do our best to support it." Wei Ba smiled slightly: "However, I want to ask the general for a question, I wonder if it is possible?"

"sure."

"General, do you really want to attack Xiangyang?" Wei Ba took the word "real" very seriously.

Lu Xun's eyebrows trembled: "What do you mean?"

"If the general really wants to attack Xiangyang, then we have the meaning of talking. If the general has no intention of taking Xiangyang, then we don't need to waste time here. Tens of thousands of troops, the daily expenses are amazing, and we really don't need to.

Here we spend the blood and sweat of the people."

Lu Xun's eyes twitched and understood what Wei Ba meant: "Why, your food and salary are insufficient?"

Wei Ba nodded, looking a little embarrassed. Lu Lan saw it and couldn't help but curl her lips, a look of contempt flashed, and then she smiled gently.

"The general also knows that since the Prime Minister entered Hanzhong the previous year, it has been more than two years since then, and the war has been repeated, and the reserves of the years have been consumed. This time, I came to Fancheng and invited the good fortune of heaven. The war went smoothly and I was arrested.

Many prisoners also brought a lot of trouble, and our military ration consumption speed increased sharply." Wei Ba smiled bitterly and said, "To be honest, our current food storage is less than ten days, and there is no much food to transport in Hanzhong.

We can only transfer from Yong'an. The journey is long and we have the possibility of food being cut off at any time."

The smile on Lu Lan's face froze. Only then did he understand what Wei Ba meant. This was not a discussion, this was a blackmail. How could it be possible to capture Fancheng in ten days? It was clearly a matter of asking Wu to pay their military rations.

Otherwise they would mean withdrawing their troops.

Lu Lan was furious: "Do you want to cheat us?"
Chapter completed!