"Duan Ping, how's it going?" Duan Ye hurriedly dismounted and walked into the middle of the boulder cannon. Duan Ping followed, following in unison, while the others lagged a little behind.

"The adults who joined the army are relieved, the brothers have been practicing day and night, and they have long been very familiar with it, especially when the adults who joined the army have promised to give the brothers a chance to show their faces in front of the governor, and these cubs are even more hardworking. The number given by the adults who joined the army really worked, as soon as everyone shouted, they knew what you were doing and what I was doing, hehe, you can rest assured. ”

"That's good. Later, the lords and generals of the festival, as well as the envoys of Qiuzi, will come to our Shihaizi, see everyone's hard work for so many days, you go and tell them, be vigilant, don't lose my people later. ”

"Huh." Duan Ping answered, and ran down to communicate with his robes. Sure enough, the soldiers erupted in cheers. No matter what era, people crave the opportunity to show their faces, the opportunity to show, ancient and modern. It is a rare opportunity to show it in front of the commander-in-chief.

In Duan Ye's heart, there were only these wooden shelves in front of him. Of course, they also have a name, called a boulder cannon.

Trebuchets have been around for a long time, but megalithic cannons are different, the key is that the principle of shooting stones is different, so the power is different. For example, a traditional trebuchet is like a bow, no matter how you improve the bow arm and bowstring, it is always a cut off from a crossbow.

In other words, the trebuchets built by themselves in ancient China relied on people pulling horses and pulling them, and what Duan Ye did this time was a counterweight catapult, which was the same principle as what Ah Lao Wading was tinkering with.

To say that these craftsmen have not built normal trebuchets, but they have not seen it when they were fighting, dozens of people pulled ropes and dragged desperately, and then listened to the orders of the peak, and at the same time withdrew, the stones flew out, looking like a galloping horse, but smashed on the city wall, it was like tickling.

This period of joining the army is amazing, the drawings drawn by the craftsmen have never heard of, the whole trebuchet is so small, it does not need to be pulled by ropes, and it is said that a few people can operate it. Although the craftsmen are not of high status, they all shake their heads in disbelief.

Hearing is false, seeing is believing. Duan Ye didn't talk much nonsense, so he let people build it and assemble a sample for them to see.

Now that you have the drawings, you don't have any problem building them. Soon, a device half the size of the original catapult was made. For the first prototype, Duan Ye did not add wheels, but used a platform wooden skid, which can be more stable. Then, instead of using a relatively thin but tough wooden pole, I directly looked for a log with high internal density and strength.

The principle is very simple, in the past, the trebuchet also needed to consider the elasticity of the wooden pole itself to a large extent, but Duan Ye knew that the power of the trebuchet did not lie in that little bit of tension, but in the initial velocity of the boulder flying out and the weight of the boulder, after all, how powerful is the slingshot? How powerful is a crossbow machine? To send a boulder high into the air, it undoubtedly takes energy and work. Then it is fundamentally the principle of levers to amplify the velocity, in other words, it is necessary to convert the gravitational potential energy into kinetic energy. It is not difficult for anyone who has studied elementary physics to understand these truths, but it is impossible for people who have not received systematic education to think thoroughly, so although the craftsmen of ancient China were ingenious and studied hard, they still did not come up with these things.

Give it a try and find out if there is one. After Duan Ye made the prototype, he organized craftsmen in Shihaizi to take a look. After some experiments, the craftsmen were convinced. They are all knowledgeable people, and that small wooden pole throws a pumpkin-sized rock high at once, and everyone can even faintly hear the whistling sound, what does this mean? It shows that the speed of the stone is really fast. If this hits the city wall, I'm afraid it will be able to smash through the city wall in a few clicks, and if it hits the skull...... Many people can't help but shudder.

Since everyone is convinced, things are easy to do, Duan Ye quickly formulated the standard type of the boulder cannon, in fact, the structure is very simple, long trunk, buttons, hoops, tow ropes, hooks. That's it. It's actually easy to find in the military. However, Duan Ye stipulates that all the parts must be according to his size and be improved, and the length can have a little error, but not large. Although the craftsmen did not understand, they all carried it out. The red man in front of the Grand Governor, who dares to be disobedient?

When the assembly is completed, it is really about the same size as the trebuchet, but Duan Ye is very confident that the initial speed can be several times that of the original trebuchet, so the power must be at least squared, right?

The next thing is training, everyone was reluctant at first, but Duan Ye asked Lu Guang to order arrows, so everyone obeyed. If it is ten days, it has reached the point where the banner of Duan Ye Ling, the boulder pierces through the air, roars indecisively, and the pile of soil and mountains is shattered with one blow. When Duan Ye saw it, he relaxed slightly. With such a sharp weapon, it should be no problem to take down the turtle, let alone the envoy under the shock.

Gently touching the long arm of rough processing, Duan Ye had mixed feelings in his heart, these machines in front of him were like his own children, Duan Ye almost watched them turn from trees with branches and leaves to killing weapons. Watch those craftsmen sweat and assemble it; I watched those soldiers who originally used knives and guns finally accept the boulder cannon and like it. Because Duan Senjun told them that they could only cut one person at a time with a knife, and when they operated a boulder cannon, one stone could kill several heads, and if they smashed the city wall, a few stones could smash through the city gate. Everybody will settle accounts, obvious things. What's more, Duan joined the army and promised them that he would give them credit in front of Lu Shuai. They operate the machine, and it is difficult to pick up the heads to report the credit, but the credit they deserve is definitely indispensable to them!

Time was pressing, Duan Ye forced himself to wake up from his imagination, but saw that the soldiers were already standing in order, and Duan Ye also had a chance to speak.

Walking up to a relatively high mound, Duan Ye glanced around, and said loudly: "Brother Rank, the hard work of many days, Lu Shuai can see it, and I can also see it when I join the army." Your skills, once you attack the city, will definitely surprise your original robes! ”

Seeing that the soldiers were listening to him carefully, Duan Ye's expression was solemn, and he continued: "However, after all, the siege of the city is to fill in with human lives, and God has the virtue of a good life, and Qiuzi City sent a messenger, and Lu Shuai was willing to talk to them." But only if you have the ability to beat the turtles, can you take advantage of the peace talks, you say, right? ”

"Yes!"

"Well, this is the time to rely on you! Lu Shuai is parading with the Qiuzi envoy to show off the prestige of our army. Horse infantry, naturally, does not need to be said. However, Lu Shuai gave us a chance! Lu Shuai will take the envoys, the generals, and the rest of your robes to Shihaizi to see you, and ask you to prove to the envoy that if we fight Qiuzi, we can defeat it in one day, do you have the ability? ”

"Yes!"

"We have!"

The soldiers are the most unbearable, Duan Ye is a little fanned, and they are all red-eyed.

was very satisfied with this effect, but Duan Ye suddenly changed his mysterious expression and said, "Do you know that the messenger sent by King Qiuzi is a girl. ”

"What? ? ”

"That's too contemptuous, isn't it?"

"Buckle that, we'll attack the city tomorrow!"

The soldiers were in an uproar, and Duan Ping fanned the flames among them, Duan Ye waited for them to discuss for a while before he continued: "Listen to me, everyone. He immediately changed to a serious look and said, "Just because I sent a girl, I can't lose face in front of Lu Shuai later!" If you're a handle, you're 10 points, and if you're a girl, you're 12 points! Did you hear that? ”

"I heard you!" This time, the voice was neat and resounding in the sky, and even Lu Guang and Jiang Yu in the distance could faintly hear it.

"Good! How to do it, this official has already told you, you have also practiced many times, there will be no problem. Now, sit down and rest. Duan Ye said with a smile.

Everyone was shocked, feeling that this adult who joined the army had no official frame at all, so they sat down one after another, chatted and farted. Duan Ye himself, on the other hand, fell into deep thought.