Borrow the day to change the day

Li Laosi, who was following Zhong Jinwei, heard what the Westerner said, stepped forward a little, half-drawn his knife, and shouted at Gonza: "If you want to blame, beat until you are convinced!"

Li Laosi looked very fierce, and he was half a head taller than Gonza, with a lot of momentum.

But Gonzawa was a captain in the Portuguese army. He came to Daming thousands of miles away and had a lot of experience. He was not afraid of Li Laosi, so he just stared at Zhong Jinwei.

Zhong Jinwei smiled, took a step forward, told Li Laosi to retreat, and then shook hands with Gonza: "It's okay to be dissatisfied, I can understand. There are indeed other factors affecting the shooting besides measuring the distance."

When Zhong Jinwei spoke like this, he became the focus of the audience again, and everyone was watching him to see what he had to say. [

He shook his fingers and said to Gonza: "The elevation angle of the gun muzzle is a factor. The distance of the gun will vary with the elevation angle. Among them, a 45-degree angle can reach the longest range, isn't it?"

Gonsasha only knew this conclusion after many times of practice.Hearing what Zhong Jinwei said now, Wei Wei was a little surprised. Could it be that this high-ranking official of the Ming Dynasty also let go of a lot of guns?

He didn't deny it, nodded and replied: "Yes."

"Secondly, the amount of gunpowder loaded will also affect the distance of the gun's impact point. When firing a cannon, it is not that the more gunpowder the better, the appropriate amount of gunpowder should be loaded according to the distance measured in advance, right?" Zhong Jinwei asked again road.

"Yes."

"Furthermore, whether the artillery can shoot accurately is also affected by the size of the cannon, rainy days and strong winds. Of course, the heavier solid guns are used now, and the influence of these factors is not great."

After Zhong Jinwei finished speaking, he took his knife from Li Laosi, scratched it on the ground for a while, and then said: "This is the parabolic formula for the gun to exit the barrel. This is a constant, which is a fixed value. It is the acceleration of gravity. It is about , as long as these conditions are met, I can calculate for you what line the gun is flying along, which is the value composed of x and y."

Zhong Jinwei talked eloquently from his memory, and he was not afraid of whether there was a mistake in his memory, or whether the formula he learned in middle school was consistent with the actual flight trajectory of the gun.Because he knew that in this era, or in this place, with his status, no one could prove what he said was wrong.

When other people heard that the thing on the ground could have such an effect, they looked at it one after another, but they couldn't understand it. They only felt that Zhong Jinwei suddenly became unpredictable.

Gonzawa was already speechless, the performance of the high-ranking officials of the Ming Kingdom was completely beyond his previous impression of the people of the Ming Kingdom.Although he couldn't understand the formula, he could feel his absolute confidence in the things drawn on the ground from Zhong Jinwei's expression.

He knew that Daming used hieroglyphics, but the overseer drew various Western characters on the ground, and he believed that Zhong Jinwei, like him, came from overseas, and he might even be from Western Europe.

Sun Chengzong looked at Zhong Jinwei, who was confident in front of the Western leaders, and when he was writing and drawing on the ground, he was thoughtful.

No one knew that Zhong Jinwei just watched a lot of movies, and then used the mathematical knowledge he learned to pretend to be an expert. He only had theoretical knowledge of how to fire a cannon.

Zhong Jinwei saw that Gonza hadn't spoken, so he continued, "If you're still not convinced, bring your tools and I'll probably tell you how to use them. It's not difficult at all."

Seeing Zhong Jinwei's aggressive aura, Sun Chengzong was happy again. He didn't expect that he was so proficient in artillery, and he could save the court a lot of money if he asked Zhongxinghou to teach his soldiers how to fire artillery.

He laughed and praised Zhong Jinwei, saying: "Marquis Zhongxing is worthy of returning from overseas. He is well-informed and knowledgeable. No wonder he is valued by the emperor."

Zhong Jinwei didn't feel much when he heard it, because he didn't come back from overseas at all.

Sun Chengzong's words gave Gonsa an inspiration. If the young man in front of him can get a high official title in the Ming Dynasty, if he works hard, can he also do it?

Gonzawa has always envied Daming's wealth and prosperity. If he could live the life of a rich man in this place, he wouldn't want to go back even if he was killed. [

Thinking of this, he bowed his head to Zhong Jinwei and said in convincing, "I'm convinced. Sure enough, there are people in the Ming Dynasty who know how to fire cannons. They really rewarded us with a bite of food. I will never counter the price you ask."

Gonza's posture was very low, and his "confession" attitude was very good, which made Zhong Jinwei, who was a little guilty, feel a lot of face.

He looked at Sun Chengzong, saw that he nodded slightly, let himself be the master, and said to Gonsa: "It is really not easy for you to come from thousands of miles, and to escort the firearms all the way to the capital. The treatment of a thousand households, your subordinates will give the treatment of a hundred households, how about getting promoted after doing a good job?"

Gonzawa has long set an example of Zhong Jinwei, and has set a lofty ambition. With the mentality of being slaughtered, even if it is nothing, as long as there is hope, it is worth it.

Unexpectedly, Zhong Jinwei gave him a good salary. He knew Qianhu's official position, so he quickly agreed.

Historically, Gonza received a salary of 150 taels per year, plus 15 taels of additional expenses every month, while the rest received 100 taels a year, plus 15 taels of food money every month.Under Zhong Jinwei's intervention, Gonsa now receives [-] taels a month, and the rest receive [-] taels a month.

The artillery is fine, and the employment contract has a preliminary intention, so there is no need to worry about it, and someone will naturally hand over and arrange subsequent matters with them.

Sun Chengzong and Zhong Jinwei turned back to the Chinese army account. On the way, Sun Chengzong raised his own doubts: "Why do you pay them such a high price? You don't even need to hire them. Isn't it okay for you to teach some people?"

Zhong Jinwei shook his head and replied with a smile: "I only have theoretical knowledge, and I have never practiced it. Moreover, hiring these people is not only to teach gunners' operations, but also to learn some Western military training methods from them. The technicians who follow can also get the experience of making guns, and if we want to combine our own experience of making guns, maybe we can go to a higher level."

Sun Chengzong thought about it too, so he stopped worrying about this aspect. He said to himself: "The upcoming siege will depend on these artillery pieces!"

After finishing speaking, he said to Zhong Jinwei: "Old man, when I go back to write the memorial, do you write it alone or sign under the old man's memorial?"

Zhong Jinwei didn't know about this, so he had to write a memorial, so he must have chosen to sign it.

After receiving Zhong Jinwei's reply, Sun Chengzong walked for a while in silence, then turned his head and said to Zhong Jinwei: "Today's incident made me realize the importance of mathematics again. Look, do you prepare some practical content to teach me? "

It is rare that Sun Chengzong can put down his airs and ask Zhong Jinwei for advice.Naturally, he had no problem, and even went a step further: "Master Sun, in the future, if you want to use the quartermaster system to teach soldiers knowledge, I hope you will give your full support."

Although Sun Chengzong had heard Zhong Jinwei talk about this before, he still didn't understand it deeply.After experiencing a case of applying mathematics to the military today, I have realized it.Therefore, he agreed to Zhong Jinwei's request without hesitation.

Emperor Chongzhen was very happy when he knew how Zhong Jinwei used his mathematical knowledge to subdue the Western leaders during the artillery test.I feel that Zhong Jinwei can give himself a surprise from time to time. With Zhong Jinwei, it is really a rare commodity to live in.

At the same time, this incident also made him realize that the authenticity of the application of mathematics that Xu Guangqi said before has been effectively verified at least in the military.This made him more determined to carry out education for all in the future.

Emperor Chongzhen, the big boss, agreed with Zhong Jinwei's employment treatment of Frang Robots, and ordered Sun Chengzong to select reliable soldiers to be apprentices of Flang Robots to learn the experience of using guns.