Did Liao Qing think about it?

Of course I thought about it.

He already likes to delve into such issues, and he used to discuss such topics with Xu Jiaojiao often, and after receiving Che Zhengting, the two chatted even more.

So much so that Xu Jiaojiao once asked him, have you always had a dream of being a general?

Liao Qing didn't let people wait long, sorted out his heart, and said: "The Black Mountain Empire relies on only cavalry, as long as its cavalry is abolished, it is a toothless tiger, and there is nothing to fear." In the student's humble opinion, there are many ways to deal with cavalry, such as chariot formations, spears, horse rejection, bows, shackles, traps, and so on......"

When the infantry goes to battle, in addition to people, there are some carriages carrying baggage, and if they encounter enemy cavalry, they can surround the carriages in a circle on the spot to form a better defensive position, which is the chariot formation. Although the horses charge hard, but when they knock on these carts, they will also look up to the sky and cry out in pain.

The spear, here refers not to the spear in the ordinary sense, but to a very long spear, at least more than five meters, the spear is like a forest, and the horse will not charge when he sees it.

Rejecting horses, that is, crossing wooden pillars and fixing them into a shelf, the shelf can also be inlaid with sharp blades and sharp thorns, which are used to block the movement of military horses and can kill and injure the enemy.

Needless to say, bows and crossbows can effectively kill and injure enemies before the cavalry can rush in, except for heavily armored cavalry. But who can afford heavy cavalry? The entire Black Mountain Empire is scarce.

Trapping is to dig some pits in the ground, and the killing of horses is not bad, but ......

"The pit is very easy to damage and has limited lethality, so it goes without saying."

Lin Hanlin, as a great Confucian, is the general existence of the emperor's secretary general, there are few things that can be hidden from him, and it is impossible to fool the past.

Liao Qing said unhurriedly: "Ordinary pits are fragile, but my wife and I found a kind of mixed soil in a chance incident, which has a very high strength after firing, and it is difficult to damage, enough not to break a horse's legs." ”

"Oh? Have you tried it? Lin Hanlin was interested.

Ordinary horse traps are to dig holes in low passes, and the horses will lose their balance when they step on them, and then the people will turn over on their backs.

Although it can't be moved, it has some settings in some key places, which is enough to affect the situation of the battle.

However, the soil pit is useless after being stepped on a few times, and the effect achieved is very limited, so it is generally rarely used.

If there is a material that is durable and strong enough to make a trap, then the situation is completely reversed.

"Of course I did."

Liao Qing smiled at Xu Jiaojiao and said, "It's strong enough, durable enough, and more than enough to be used as a trap, we call it concrete." ”

Concrete was also thought of by Xu Jiaojiao.

She doesn't really know how real cement is made, she just knows that her ancestors built a winery for the sake of the winery, and passed down a method of burning cement by soil method, which is to grind limestone and clay, calcine mature material, and add a little iron ore to grind together, which is cement.

Cement plus sand and water is concrete; It can also be added with steel bars, which can be used as load-bearing walls, beams, etc. for buildings, which are extremely versatile.

To make a horse pit, you don't need steel bars, just mix with ordinary sand and gravel, although the strength does not reach the modern level, but a stumbling horse's leg, that is more than enough.

Xu Jiaojiao didn't want to take credit, she was still a little worried that others would see her as a water ghost, so she warned Liao Qing not to say that she invented it, at most it could only be said that the two worked together to study it......

Lin Hanlin's face was full of joy, he brushed up his beard, and his expression was thoughtful, but he heard Liao Qing say again:

"These are just the use of the battlefield, and the effect varies from person to person, but in any case, the cavalry is always the superior side on the battlefield, and the most effective way to deal with the cavalry is the cavalry. And my Daxiang lacks war horses, and he is far from catching up with the Black Mountain Empire in terms of cavalry, so it is difficult to reverse this situation in the short term. The students thought about it for a long time and felt that in order to completely solve this problem, the only way to solve it was to solve it fundamentally, such as finding a way to reduce the output of horses in the Black Mountain Empire, horses need to eat grass, but it is not only horses that eat grass, we can ......"

"Stay!"

Lin Hanlin hurriedly stopped.

He vaguely felt that what Liao Qing was going to say next was a real strategy to defend against the enemy, there were many people here, and it would not be good if the Black Mountain Empire learned the news, so it was better to talk about this issue in private.

Liao Qing also didn't say anything more, there were many people, Lin Hanlin didn't let him continue to talk, he just went down the next step.

"Thank you, uncle, for your correction."

……

Everyone else is a human being, and they take over the topic and comment.

Some people savor it, and no one says anything bad.

"It's really worthy of being a champion, I'm convinced!"

"Niu Pi, it's too bullish, every question makes me think about it for half an hour, I can't come up with such a good answer, this champion is really different from us."

"Otherwise, if you are the champion, you won't even be able to pass the exam!"

"What a talent! Pillars of the nation! ”

……

Lin Hanlin's original face was serious, but after seeing Liao Qing's fluent answers, breezy and moon-like temperament and literary brilliance, his old face showed signs of loosening, and he was solemn, replaced by a rare amiable look, and put the booklet back into his sleeve.

"It's okay, the knowledge is acceptable, however, the amount of reading is still a little insufficient, you quote the classics are all masterpieces of the past dynasties, and there are not many niche books, you must know that there is no lack of insight in these books, and there is too much to answer too quickly, the words are too concise, some do not respect the teacher, and do not let the teacher get a sense of respect......"

All:......

Does he mean that the student is too smart and makes the teacher lose face?

Or does it mean that you don't respect him as a questioner? Let him, the questioner, lose face?

Liao Qing's face did not change color, and he agreed.

"Thank you Hanlin for the point, the students remember."

Du Zhengyan said, "Okay, the school examination is over, call uncle, what is it called Hanlin?" ”

Turning his head, he said to Lin Hanlin, "Uncle, your nephew's personality is like this, if you don't grow up with us for a long time, you will have some raw points, it will be good if you are familiar with it in the future." ”

If you don't know what you say, you really think that Du Zhengyan and Lin Hanlin have a good relationship.

In the whole capital, who doesn't know the relationship between the Lin family and the Du family!

More than ten years of family feud!

He can speak so shamelessly, how thick is this cheek?!

Breathtaking.

Especially the Yu family was also present, and they were very angry at Du Zhengyan's behavior.

When did Du Zhengyan speak to their family members in such a flattering tone? Now holding the Lin family so much? Lin Xuejun has been dead for so many years, but now their sister-in-law is being the wife of Du Zhengyan, holding his deceased wife's maiden family so much, not because he wants to be a backer for Liao Qing, pick up Liao Qing, and step on their nephew Brother Yuan!