Just do it.

In the life of the Imperial College, there is also something that makes Cao Shu and Liu Bian quite happy, that is the Imperial College’s “Six Arts!”

——"ritual", "harmony", "music", "shot", "book", "counting"!

"Li" means etiquette and law. In addition, it also includes educating students to be calm and moderate on various occasions.

"Music" means music, playing and singing.

"Shu" is calligraphy, and Cai Yong is a master of seal script. Most of these courses are taught by him personally.

"Number" not only refers to arithmetic, but also yin and yang and astrological signs. In addition, it also refers specifically to a person's "cultivation". The larger the number, the larger the capacity. Only by accumulating enough numbers in daily life can you "have a clear idea" in your mind when encountering problems!

Cao Shu was very interested in these four items, while Liu Bian felt that it was boring!

He was interested in two other items, such as "Yu", which is the horse-driving skills.

There is also "shooting", which is the so-called archery. It is a subject that Liu Bian is most interested in.

He even combined the two, "Di" and "Shoot", which is exactly the same as riding and shooting...

Not to mention, the Taixue often has small bent bows used by children and a little foal, Liu Bian rode and shot them, and he was really good at it.

But, this is accurate!

Almost made Liu Zhang, Liu Qi, Yuan Tan and Quan Xu in the same group laugh out loud!

After all, they are all teenagers, and their family studies are indispensable for "monitors". Masters like "shooting" can be said to be anything else, at least they can occasionally hit the target. However, for some reason, this arrow can't shoot far!

Cao Shu didn't join in the fun of riding and shooting.

Instead, he was observing, observing why Liu Bian failed to hit the target and why other friends couldn't use their strength.

The lower market is unstable!

This is Cao Shuo's subconscious judgment.

When you ride and shoot immediately, you lean on the support of your hips and waist. The force point under your stride is the only force point.

With this alone, stability will inevitably be greatly reduced.

In his previous life, during nine years of compulsory education, Cao Shu learned the principle of triangles and knew that triangles are stable!

From this perspective, if you want to strengthen the hit rate and strength of riding and shooting, the first thing you will be to strengthen the stability of the body, and the force point must be increased from one to three!

Thinking of this, Cao Shu remembered an extremely simple idea, a simple stirrup or even a hemp rope is enough to form the principle of triangle stability.

...

...

Luoyang, Jinwu Lane, Cao Mansion Courtyard.

Liu Sandao, who was originally thinking about forging steel, was called by Cao Shuo.

Today, Cao Shu is in a very urgent mood. He must discuss with Liu Sandao the idea of ​​creating stirrups in depth.

For nothing else, I don’t know if I will take the exam for the Taixue exam in a few days? Cao Shu doesn’t want to fail the exam for riding and shooting.

"Xiao Shuo, I tell you that there is no shortcut to riding and shooting, so you must practice more!"

Liu Bian finally found a sense of superiority and kept showing off in front of Cao Shuo.

"Look at me, after practicing for a few days, I can occasionally hit the target? Look at Yuan Tan, Liu Qi and the others, I have practiced since I was a child. I shot more arrows than I ate rice, so that I can hit the saddle target steadily. Why don't you understand? It's useless to be so fancy! Come on, Xiao Shuo, I will give you guidance, you can't fail the exam!"

Luo Li was talking a lot, and Liu Bian found that Cao Shu ignored him at all. Instead, he was drawing some manufacturing drawings with Liu Sandao.

While drawing, put the manufacturing drawings into practice.

Liu Bian leaned over and glanced at him. What's the thing? It's just a hemp rope, tied into circles at both ends? Just this thing? You can pass the exam in riding and shooting? Isn't it?

"Xiao Shuo? What the hell are you?" Liu Bian leaned his head to Cao Shuo, his forehead full of question marks.

"This is a stirrup! You don't understand it even if you say it, so go play!" Cao Shu waved his hand, looking disgusted, and he continued to discuss the design of the stirrup with Liu Sandao.

Liu Bian heard it in a fog...

However, he could still understand some of Liu Sandao's doubts.

The reins will be changed to iron chains in the future, but even if they are changed to the so-called iron stirrup? Can the knight become stable on the lower plate on the horse? This idea is too bold and seems to have not been practiced like this by his predecessors!

"Don't worry, it's OK!"

Cao Shu's words were extremely confident...

In his memory, there was actually a substitute for iron stirrups in the Western Han Dynasty - Bu stirrups.

The principle is similar to the ones tied with a circle of the hemp rope, but the shape is a little more beautiful.

Of course, this kind of cloth stirrup did not act on the Han army, but was mostly used by nomadic peoples.

However, nomads are always stupid and naive. Even if they are cloth stirrups, they actually prepare one-sided things and still do not form triangles, so the effect is naturally greatly reduced.

The real bilateral iron stirrups can be traced back to the knightly aristocratic class in the Middle Ages.

You should know that the Huns were bullied by the Han Dynasty and had no place to stand. They had to escape from the current European territory. They would bully Westerners as much as the Han Dynasty bullies them.

But when the Westerners were bullied by the Huns, they began to learn from the Huns, especially the cavalry of the Huns. After a while, they first created a one-sided stirrup, then a two-sided stirrup, and then an iron stirrup. A new class was born - the knight aristocratic class. This was a bit like a bird gun changing, and awesome lightning!

On the contrary, our great China was not until the Sixteen Kingdoms of the Eastern Jin Dynasty that there were bilateral iron stirrups. The combat effectiveness of the cavalry was improved by leaps and bounds at that time, which was much later than that of the West.

Oh, if you fall behind, you will be beaten!

Fortunately, the research on iron stirrups is not complicated, and the idea of ​​iron saddles is even simpler. Even if it is based on the principle that triangles are stable, Cao Shu can draw a sketch!

However, whether it is useful or not, I still have to practice it first!

"Brother Bian..."

After being neglected for a long time, Liu Bian seemed quite excited when he suddenly heard Cao Shu shouting.

"How about you accompany me to try the stirrup?" Cao Shuo asked anxiously.

"Stacks? What are stirrups?" Liu Bian was confused.

"It's this rope!" Cao Shuo lifted the simple version of the hemp rope stirrup... "Let's go, let's go to the Chengnan Schoolyard and bring your little bow and arrow!"

Now, it’s not over supper yet, and there’s still light in the sky…

I'm afraid that if I delay for a while, it will be dark.

Cao Shu ran out quickly, and Liu Sandao also captured Liu Bian on the horse, driving the carriage, and did not forget to instruct the servants to lead two foals, and a group of people hurriedly heading towards the south of the city schoolyard.

...
Chapter completed!