Now, the only question is how much damage this stone has caused to the mountain. Compared with the ones they dug, this is what Lu Jia really cares about. If the force of the smash is similar to that of the failure, then these two catapults will be a bit useless. In the end, it may still have to rely on manpower to solve this problem.

"General, you and I will look at each other nearby!"

Seeing the rocks hit the mountain, rolling dust came out, Lu Jia could no longer stand. He greeted Han Xin and then walked towards the mountain. Although Han Xin was also very curious, he thought about it before, just like some of his soldiers, that is, whether he could take these two stone catapults to attack the Mauryan Dynasty. If that were the case, the pressure on the Mauryan Dynasty would definitely be quite high if the stone descended.

When Lu Jia walked to the place where he hit the stone to check, a long-lost smile finally appeared on his originally tight and tense face.

"General, with this thing, the mountain is broken, and that's really just around the corner!"

After staying here for more than a month, Lu Jia had long studied the situation of this mountain for many times. Now that he could say such words, Han Xin naturally believed it.

Of course, this is thanks to Zhang Kai who is far away in Xianyang City. Lu Jia knew that this time, the craftsmen sent by Zhang Kai had played a very huge role. With these two catapults, Zhang Kai would probably have to be a little bigger than himself in terms of credit.

Han Xin followed and saw that the stone they selected used to hit the mountain before was shattered by the mountain, but the originally solid mountain was also hit and dropped a lot of things. In this moment, it was basically the same as the effect they had dug for several days. What does this mean? It means that these two equipments were throwing stones for one day, which is equivalent to the credit of these people digging for more than ten days.

Seeing this situation, Han Xin was also slightly relieved. What he feared most was that this thing was not good. Then the 20,000 elite soldiers who were originally planning to fight to the death of the Mauryan Dynasty had to dig mountains from these Lu Jia. In Han Xin's opinion, letting the most elite cavalry of the Qin Dynasty dig mountains here instead of killing the enemy would be a bit useless.

Now that this happens, Han Xin’s 20,000 people have been clearly liberated, and he can take these 20,000 people to train some tactical things under such bad circumstances.

He had his own plans. Once he had any chance, he would definitely take the 20,000 troops alone, so the 20,000 cavalry must have very strong survival ability.

Han Xin wanted to let Xiang Yu know that although he only brought 20,000 troops, his ability was definitely no worse than his 80,000 Hun cavalry.

Since he was holding a horse for Xiang Yu, he has been holding his breath in his heart. Although the Qin and Xiang Yu have signed a convoy, Han Xin doesn't care about that. He wants to prove his ability in front of Xiang Yu. It may be a matter of change now. Even if he proves that he is the best general of the Qin Dynasty, Xiang Yu will not feel anything, but this matter is very important in Han Xin's heart.

After saying hello to Lu Jia, Han Xin looked for a place to train troops. With these two treasures, Lu Jia naturally would not let Han Xin help him dig the mountain in vain. He also knew that these 20,000 people were going to march towards the Mauryan Dynasty with the Huns, which encouraged the might of the Qin Dynasty, so he must not be tired before the war was fought.

At such a happy moment, Lu Jia naturally did not forget Ying Gao. He wrote a letter at that time, telling Ying Gao that these two devices really played a great role in what they were doing now, and told Ying Gao that according to his previous prediction, after having these two devices, he should be able to open up the mountains within the specified time.

In fact, Ying Gao was not really waiting for their news in Xianyang City as Lu Jia imagined. Ying Gao had seen what power the equipment had, so he was not worried about this matter. Now he was thinking about another thing.

Zhang Kai used only three days to create such a rock-throwing cart. Ying Gao later thought about it and found that there were many unreasonable aspects. In just three days, why could Zhang Kai design and manufacture such fine parts?

Although Ying Gao did not express his own opinions on Zhang Kai's design, in the stone thrower, various lever principles and other mechanical principles that seemed more advanced in later generations were applied very skillfully. If this could be created within three days, Zhang Kai would be a physicist more famous than Newton.

With this question, Ying Gao also asked Cao Shen to help him understand Zhang Kai's background for a while again. Ying Gao knew this. So, on a sunny morning, Ying Gao came to Zhang Kai's mansion after using the meal.

Ying Gao was a serious first time in Zhang Kai’s mansion. Now, Zhang Kai, who has lived in Xianyang City for several years, has already married and had children in Xianyang City. His life is still quite happy. There are also several servants in the yard busy. Of course, even so, he is very simple in Zhang Kai’s official position.

This period is a rare leisure time for openness. When there is no court, he mostly accompanied his son who is only three or four years old in the mansion.

When Ying Gao arrived, Zhang Kai was holding a bunch of small objects he made and teased his son and laughing. He suddenly looked up and saw Ying Gao walking into his yard with a smile. At that time, he didn't care about anything else and fell to the ground and saluted Ying Gao.

Zhang Kai's son obviously didn't know what his father was doing, but he probably thought this action was quite fun. He threw down the gadgets in his hand and knelt on the ground like his father. However, he was facing Ying Gao, but the courtyard wall in his house...

"You guys are really good at teaching your children. I've just passed by your mansion today, so I come and take a look. Don't be so reserved, get up quickly."

Zhang Kai has always been honest. After hearing Ying Gao say this, he looked up and saw that there were only two casual guards behind Ying Gao. Obviously, he was wandering around the streets, and then he got up, and then hugged his son who was still smiling and kneeling in his arms. He repeatedly greeted his wife to take the child away.

"I wonder what happened when you arrived at Zhangkai's mansion? The mansion is simple and I really don't know how to entertain you."

What Zhang Kai said is the truth. There is nothing in the Emperor's Xianyang Palace. Now that he has arrived at the mansion of an ordinary official in the court, he will of course not play.

"Since I have arrived here, I naturally can't leave. You, I, the king and my minister, will sit in your study for a while."

After hearing what Ying Gao said, Zhang Kai did not think of anything else, but led Ying Gao into his study directly.

After entering the open study room, Ying Gao found that his study room was really a solid study room. Looking around, it was full of bamboo slips and some drawings rolled up. Moreover, Ying Gao had a vision. When you look at these things, you will know that it has been a few years. In this era, these things can be called old objects.

Ying Gao's habits are always straightforward. The reason why he didn't say anything useful when he was in the yard was just because he was afraid of opening the walls of the mansions of such officials who were deeply trusted.

So while Ying Gao picked up a roll of bamboo slips, he asked casually: "The books in your room are probably priceless. Is the stone throwing cart you designed in three days the last time also from these books?"

After Ying Gao asked this, he raised his eyebrows and looked at Zhang Kai. Obviously, there was something else in this sentence.

Although Zhang Kai is honest, he has been training in the Qin court for several years. Although he does not participate in any arguments on weekdays and is focused on his own land, he has always grasped the wind direction in the court very accurately, and he is definitely not a person who can't tell the difference in his eyebrows.

"What does that mean by you?"

"What do I mean? It is really the luck of the Qin Dynasty to have talents like you. It is my luck! In the Qin Dynasty, there have always been a controversy among hundreds of schools of thought, but some schools have not yet appeared in the world because of the wars in recent years. This includes the Mo family. I wonder if you think so?"

When he asked this, Ying Gao's gaze was a little sharp, which made Zhang Kai know what was going on. A layer of fine beads of sweat appeared on his dark cheeks, and then he quickly fell to the ground. After a while of ideological struggle, he finally said a whole sentence.

"I did hide anything from the Lord before Zhang Kai, and I would like to punish you!"

Zhang Kai is indeed a person who does nothing but hides anything. When he saw Ying Gao, he admitted his sins at that time. He knew that there was such a thing in Qin Rule: You lie to your parents, that is your freedom. Although Qin Rule does not advocate it, why can't you do that if you do it, you can't do it.

But if you lie to the emperor, or deliberately conceal something to Zhang Kai, then the crime will be serious, and you will die if you say death. Of course, whether it is a deception depends on the emperor's words, so this is still very dialectical.

"If you say something now, it will naturally not be considered a concealment. Why do I want to punish you? Let's start with whether the two equipment sent to the barren land were you thought of it in those three days!"

Ying Gao's words were obviously equivalent to giving Zhang Kai a chance. Zhang Kai could naturally hear it. And according to his initial idea, his true source was not actually worth hiding, but he didn't tell him the first time when he defected to Ying Gao, so he always felt that it would be meaningless to tell him later, and that has been delayed until now. Of course, there are other reasons in this.

"This object... was not really thought of by Zhang Kai, but Zhang Kai had seen the design of this object in a classic before. When he saw the Lord, he was anxious and then returned to the mansion to search. After finding it, he felt that it was indeed a feasible thing, so he made it..."

"These are all minor matters. I would like to ask you, after you arrived in my Qin Dynasty, you only care about making objects, but never participate in the discussion of government affairs and wars. Is it related to you being a member of the Mohist school?"

"Ah? You guy, you have already learned about this?"

"Hmph, if not, how long do you want to hide it? Just for the stone throwing cart you made, I can see some clues. Do you think I have been wasting my time in Xianyang City in my early years? That stone throwing cart has a lot more processes than the stone throwing carts used by all countries, especially the leverage has been widely used. This is not the work of the Mohist school, who else can it be?"

"This..." For a moment, Zhang Kai really had nothing to defend himself. He was not an eloquent person, but now that Ying Gao has exposed the secret in his heart, he doesn't know what to say.

"If other schools mastered the technology of this stone thrower, they would have been used in previous wars in various countries, but only the Mohist school advocated the same love and attack. In your eyes, I am afraid that I will only reach half of it, so you should be very confused about me."

After Ying Gao finished speaking, he opened his mouth wide, because almost all of what Ying Gao said accurately hit his mind.
Chapter completed!