"Persuasion?" Sun Ce was surprised, "Gongjin, aren't you doing this too much?" If Yuan Xiao'er is willing to surrender, he will not be allowed to come out of the west in the sun? ”

Zhou Yu smiled slightly, took out a silk book from his arms and handed it to Sun Ce.

Sun Ce took the silk book and said in surprise: "Gongjin, what is this?" ”

Zhou Yu didn't answer, but said with a smile: "Bo Fu, don't you know if you look at it?" ”

Sun Ce immediately unfolded the silk book, but he couldn't help but be stunned when he saw it, and asked Zhou Yu: "Gongjin, this is a letter written by the Zhang family's grandmother to her son Zhang Niucal, but why is it here with you?" ”

Zhou Yu laughed and said, "Haha, Bo Fu, why do you say this letter is here with me?" ”

Sun Ce twisted the moustache on his lips, and suddenly said: "I understand, this letter was forged by you, yes or no?" ”

"Yes, but it's not." Zhou Yu smiled, and then said, "This family letter is indeed forged by me, but the Zhang family's grandmother is indeed in Chaohu Lake at the moment, do you know who her son Zhang Niucal is?" ”

Sun Ce said: "Just by listening to the name, you know that it must be a peddler's pawn, how can I know?" ”

Zhou Yu said: "Bo Fu, you are a little too cold to Lu Mian, although Lu Mian said that he was defeated and surrendered, he didn't bring us many soldiers and horses, however, after all, he was a hussar general of the Zhong Dynasty, not to mention anything else, the roster of all the generals above the commander of the Yuan clan is in his heart." ”

Sun Ce suddenly said: "You mean this Zhang calf ......"

"Not bad." Zhou Yu said, "This Zhang Niu Calf is the Sima of the left part of Yuan Shu's pro-army Yu Linwei, Xia Cai and Long Kang, this person has participated in it, and General Huang Lao died under this person's knife." ”

"What, Old General Huang actually died under this person's knife?" Sun Ce said angrily, "In the coming day, I will definitely kill this thief and avenge the blood hatred of General Huang." ”

"I'll talk about avenging General Huang later." Zhou Yu was noncommittal to Sun Ce's words, and said, "Bo Fu, if Zhang Niucalf suddenly receives a letter from his mother, how do you think he will react?" ”

Sun Ce said: "You may not believe it, but suspicion is inevitable." ”

"That's what I'm talking about." Zhou Yu slammed the knot and said, "I have prepared nearly 100 copies of such a family letter, and all the captains and generals of the Yuan family's old department have one copy, and everyone has a share!" ”

"Gongjing, this plan is poisonous enough, and now Yuan Jun should be in a big mess!" Sun Ce glanced at Zhou Yu deeply, and then continued, "However, since Zhang Niucal's old mother is indeed in Chaohu, why don't you simply take him and those old mothers of Yuan Jun's generals and threaten each other?" Isn't that much more powerful than a mere family letter? ”

Zhou Yu said solemnly: "Bo Fu, to the mother and the son of the man filial piety, this is a double-edged sword, although this sword can hurt the enemy, but it will also hurt yourself, and in a sense, the damage to yourself is far greater than the damage to the enemy. ”

Sun Ce deeply thinks that filial piety comes first, if he Sun Ce threatens each other with filial piety, it will inevitably leave a bad impression of disrespecting filial piety to the world's scholars, and this move may not be easy, in case he meets a loyal and fierce aunt, he will simply die, but it will make the enemy hate him even more to the bones, and he will be more desperate for Yuan's use.

"Well, then don't use it yet." Sun Ce nodded, and said, "Then who can do it?" ”

Zhou Yu said: "I just said, this matter must be Lu Mian. ”

"Lu Mian?" Sun Ce frowned and said, "He's an old general of the Yuan family. ”

Zhou Yu said: "It is precisely because Lu Mian is an old general of the Yuan clan that it is most suitable for him to go, because as long as Lu Mian goes, he will be able to invisibly announce to the soldiers of the Yuan army, even your hussar generals have surrendered to our Sun clan, what else do you have to insist on?" It is impossible for your Yuan clan to defeat our Sun clan, so it is better to surrender them all. ”

Sun Ce thought so, turned around and shouted, "Jia Hua." ”

Jamatzer immediately stepped forward and answered, "What does the lord command?" ”

Sun Ce said: "Immediately order Lu Mian to come to see me." ”

(Dividing Line)

After all, Yuan Wei couldn't bear the physical strength, and under the repeated pleas of the soldiers and civilians, he finally agreed to turn around.

However, on the way back, Yuan Wei changed his mind and came to the workshop that built city defense equipment.

When Yuan and his entourage walked into the workshop, hundreds of craftsmen selected from the homeless people were braving the rain to build catapults.

As early as the Spring and Autumn Period and the Warring States Period, various countries invented catapults, but they are the most primitive pulling catapults.

The so-called pulling catapult is to pull the proximal end of the swing arm through the joint efforts of the people and the husband to throw out the stone placed at the far end of the swing arm.

Even the improved counterweight trebuchet only increased its range, and its lethality was also limited.

But when he saw the catapult, Yuan Wei thought of another sharp weapon invented by Liu Ye according to historical records, that is, the thunderbolt!

Later generations of military history enthusiasts often thought that the thunderbolt was actually a catapult, but this is very wrong.

The Thunderbolt is actually a stone car, and although there is only one word difference between a stone car and a catapult, the working principle is completely different!

Catapults are fired with levers, while catapults are fired with crossbows.

Firing stone projectiles from a crossbow may sound a little weird, but if you've played with leather slingshots as a kid, you'll know that firing stone projectiles from a crossbow is doable.

However, a pair of crossbows has limited tension and limited lethality.

Therefore, in order to increase the lethality of the stone cart, it is necessary to use a repeater.

A repeater, as the name suggests, is a crossbow that can be fired continuously, but it is not true.

The so-called repeater, the original definition is actually a crossbow that is connected together, until Zhuge Liang invented the Zhuge repeater, and the definition of a repeater has become a crossbow that can be fired continuously.

The repeater crossbow was invented by Mozi, which is to use several crossbows in parallel or series together to produce a common force, produce a greater tension, and shoot a larger arrow farther!

The two methods, parallel connection and series connection, have their own advantages and disadvantages.

It is easy to pull the bow in parallel, because the pulling force of each bow is not large, one person can pull it open, but when the multiple bows are connected in parallel, the horizontal deployment is very large, Tang will Li Guangbi guard Taiyuan, and make a two-hundred-bow parallel crossbow, which requires two hundred people to pull the bow at the same time, even if it is stacked in five layers, its horizontal deployment is still forty meters, and the house needs to be demolished to be able to put it.

Although the area occupied is small, the bow must rely on the machine, and the winding speed is very slow.

Originally, Mozi invented the repeater only to fire arrows, and until the Three Kingdoms period, the repeater was only used to fire arrows.

However, in the Battle of Guandu, Liu Ye creatively transformed the repeater, so that the repeater could fire stone bullets, which was the stone cart, because the sound of the stone bullet was loud, so it was also called a thunderbolt.

Compared with catapults, the biggest advantage of the catapult is that it can shoot at the same level!

Compared with curved shots, direct shooting is obviously more powerful, because direct shooting is more accurate!

During the Battle of Guandu, Liu Ye's thunderbolt car blasted Yuan's turret built on the dirt mountain into scum through accurate shooting.

Because it can shoot directly, the catapult is far better than the catapult on the enemy's living force, the catapult can only attack a little, and the catapult can attack a straight line because it is a direct shot, for example, the two hundred bow catapults built by Tang General Li Guangbi, a cannon can directly penetrate the rebel array, and dozens of people can be killed and injured at one time!

And that kind of flesh and blood flying, severed limbs and remnants flying all over the sky, very bloody and terrifying, very demoralizing.

It is precisely because of the stone truck that the catapult has not developed in China at all, and there is no counterweight catapult.

However, during the Mongol army's westward expedition, the Chinese stone truck and the Western counterweight catapult had a confrontation record, and the Xiangyang cannon (stone car) built by the craftsmen of the Central Plains actually beat the Western counterweight catapult without fighting back, which is also one of the reasons why the Mongolian army was able to easily conquer the Western world.

Now, Liu Ye, the inventor of the stone wheel, is standing beside Yuan Fu.

At that moment, Yuan Wei asked him: "Ziyang, where are your thunderbolt drawings?" ”

"Thunderbolt drawings?" Liu Ye was stunned when he heard this, and said in surprise, "Why did Childe say this?" ”

Yuan was dumbfounded, of course he couldn't say that I knew that you had offered a thunderbolt to Cao Cao in the Battle of Guandu, after all, the Battle of Guandu had not yet been fought.

Scratching his head, Yuan said abruptly: "It seems that you are listening to someone?" That's it, who's going to ......."

"What Childe said is the grandfather?" Seeing that Yuan couldn't remember who it was, Liu Ye couldn't help but say for him.

Yuan Wei immediately got off the donkey and shouted: "Ah yes, yes, yes, yes, it's Qiao Gong, last time Qiao Gong talked about it, saying that Ziyang has a thunderbolt blueprint in your house." ”