"Hahaha..."

Liu Sandao laughed. He pulled up Liu Wei, who fell to the ground, and immediately turned to Cao Shuo and said: "Little boy is a great talent, if this hemp rope is replaced with an iron rope, and this rope loop is replaced with an iron one, then presumably the stability of this stirrup will be greatly improved... There is absolutely no chance of falling to the ground. ”

Speaking of this, Liu Sandao thought for a moment. "This one is easy to forge, and in three days I can forge the iron stirrups on the drawings."

"Then it's going to be a trouble for Uncle Sandao."

Cao Shuo nodded, very satisfied.

"Xiao Shuo, you're not authentic!" Liu Wei muttered a small mouth, patting the dust on his body, and said: "I knew that there was such a trouble-free method, you told me in advance, I have been practicing for so long..."

Hehe!

Cao Cao smiled lightly, are you a cute guinea pig, you want to be an experiment, don't you go to practice? Who's going to practice?

Thinking so in his heart, Cao Shuo patted him on the back. "Brother Fang, didn't I come to surprise you? Tell me about it? Surprised, surprised? ”

"Surprise you big-headed ghost." Liu Wei still had a calm face, as if suddenly, he thought of something. "By the way, do you have this ghost idea to pass the two levels of 'royal' and 'shooting' in the Taixue assessment? In the other four of the six arts, you must also have a way to cheat, hurry up, tell me... Tell me! ”

Belch... This?

Cao Shuo was slightly stunned, he is a pure person, an upright person, how could he be mistaken for an opportunistic person? As a joke, before the crossing, he never wore a cheat sheet in Cao Shuo's college exams.

In the midst of laughter, Cao Shuo, Liu Bian, and Liu Sandao left quickly.

Cao Shuo did not forget to instruct Liu Sandao to make an iron stirrup, and then sent the finished iron stirrup and drawings to Cao Cao, the father of the Logistics Department of the Northern Army of Hanting.

Liu Sandao agreed.

Cao Cao behind the big tree can't wait...

Three days? He can't wait to make the iron stirrup in the next hour, that is, a moment? He can't wait!

……

……

In the barracks of the Northern Army of Hanting, the lights of the big tent of the logistics department were not extinguished all night.

For a whole night, Cao Cao was recalling the conversation between Shuo'er and Liu Sandao, and he also had the impression that Liu Wei stepped on the hemp rope, played steadily, freed his hands, and bent his bow and arrows.

Because of this stirrup? A six-year-old child can condense his strength in one place and shoot arrows far beyond this age, let alone a strong and powerful Hanting cavalry?

"Iron stirrups, iron stirrups!"

Cao Cao kept repeating these three words, and for about an hour, he picked up his pen and ink on a sealed bamboo slip and tried to draw a stirrup.

First the hemp rope stirrups, then the cloth stirrups, and finally the iron stirrups...

Thanks to this, Cao Cao was in the logistics department.

There are not many other things in the logistics camp, sundries are placed everywhere, hemp rope, leather, iron, Cao Cao but whenever he has doubts, he can immediately find the corresponding sundries to test repeatedly...

For this reason, he even moved his horses into the big tent, rode them himself, tested the stability of the lower plate with a simple hemp rope stirrup, took off the reins with his hands, and ran around the logistics department, and even worse, the logistics tent was shot into a sieve by Cao Cao's arrows, leaking everywhere.

Speaking of which, this stirrup is not complicated, and Cao Cao is very smart.

After several times, he already knew the principle.

With the blessing of this stirrup, there will be an extra force point at each of the legs, which triples the force point of the original cavalry, stepping on the stirrup, the legs do not even need to deliberately clamp the horse's belly, and the stability of the lower plate will naturally expand equally.

Thanks to Taixue, Cao Cao's "Hundred Crafts" course was not bad, and throughout the night, he drew seven drawings of stirrups, each of which was improved.

It also used the existing tools to make three sets of simple cloth stirrups, trial and error, and finally Cao Cao made up his mind, immediately drove his horse himself, rushed to the arsenal in the west of the city, and entrusted the arsenal to produce a large number of iron stirrups overnight!

Cao Cao's heart was extremely urgent...

Although he didn't understand the stability of triangles, he could feel that the stirrup invented by his son Cao Shuo would definitely be an "artifact" for cavalry across the plains!

……

……

Cao Cao went crazy.

Early in the morning, the news reached the big tent of the Chinese army.

This surprised the coach Huangfu Song and Lu Zhi, who came to visit.

This time, Lu Zhi came with the emperor's order, and he carried an edict in his arms, and the meaning of the edict couldn't be clearer, either go to the expedition or get out!

Lu Zhi was also forced to be helpless.

From the Son of Heaven to the Manchu Dynasty, the word is to go on the expedition, Huangfu Song is not in the court, he can't experience the feeling that "spitting stars" can drown people.

This time, I am afraid that if Huangfu Song continues to stubbornly, Lu Zhi will have to replace him as the commander of the Northern Expeditionary Army and go out to Yanmen with a hard head!

However, Lu Zhi didn't bother to make his attitude clear, but first heard the news that "Cao Cao, the commander of the cavalry, is crazy".

"General Huangfu? This? ”

Lu Zhi hurriedly asked, in the final analysis, the Cao family has contributed a lot to being able to gather so many armaments and war horses this time, even if you don't look down on Cao Cao and want to suppress Cao Cao, you can't drive people crazy, right?

How did Lu Zhi explain to the Cao family? How to explain to Cao Shuo? Dare to love, you helped me raise money, but I drove your father crazy? It's not a good thing.

"Nothing!" Huangfu Song waved his hand. "Lord Lu, don't you know my temperament? It's just in the court, but in the barracks, I can't rub a grain of sand in my eyes! ”

"I think it's because of Cao Cao's background, so you made it difficult for him!" Lu Zhi retorted...

"So what?" Huangfu Song is not hidden. "You and I, a member of the party? Has there been less oppression by eunuchs over the years? Cao Cao's eunuch raised his grandson, after the eunuch? How could I give him a good face, how much more he... He's not a fuel-efficient lamp either! ”

"This? How does it come from? Lu Zhi asked urgently...

Only then did Huangfu Song tell Lu Zhi about the two disputes with Cao Cao, as well as sending him to the logistics department and not entrusting him to reuse...

"You! The court can be regarded as knowing how to observe words and feelings, why is there such a tendon in this barracks! ”

Lu Zhi stretched out his index finger and pointed at Huangfu Song and scolded: "If Cao Cao has something that has three longs and two shorts, I'm afraid that not only the Cao family, but also Your Majesty will not be able to explain it!" ”

"The court is just moving words, and the battlefield is moving!" Huangfu Song is still hard-mouthed. "I am the commander of the three armed forces, and I only manage the army, nothing else!" ”

Lu Zhi simply stopped talking to Huangfu Song, and turned his head to ask the pawn.

"How is Cao Cao now? Why are you crazy? ”

"Report to Lord Lu." The pawn bowed his hand, and his tone was hurried. "Last night, Lieutenant Cao Qidu returned to the camp very late, but after returning to the camp, he stayed all night in the big tent of the logistics department, laughing at the sky for a while, frowning and roaring for a while, and even moved his horses to the big tent, and even more so, he rode his horse with his hands off the reins and galloped in the logistics department! It's like, Captain Cao Qi is crazy! ”

……

……