Seeing Xu Guangqi walking in, Emperor Tianqi and Sun Chengzong were stunned. What appeared in front of them was not the energetic old man, but a worker who seemed to have just come down from the quarry. His clothes were in tatters.

, dirty, with patches of black and white on his face, and his hair and beard are messy.

There is another person behind Xu Guangqi. This person looks similar to Xu Guangqi and has the same face. But this person is much younger, and his appearance is hard to tell now.

"Your Majesty, Xu Guangqi, is here to see you. Long live my emperor!" Arriving at the center of the hall, Xu Guangqi quickly picked up his clothes and knelt on the ground, saying loudly.

Emperor Tianqi quickly walked to Xu Guangqi's side, helped Xu Guangqi up with both hands, and said rather unhappily: "Xu Aiqing, I have already said that you can skip this kind of gift."

"Back to the Emperor, I have been staying at the Imperial Mansion and rarely have the opportunity to see the Emperor. If I salute the Emperor, it would really be against the duty of a minister." Xu Guangqi stood up with the support of Emperor Tianqi, quite surprised.

He smiled awkwardly and said a little embarrassedly.

Emperor Tianqi glanced helplessly at Xu Guangqi, then at the young man kneeling on the ground, and asked in a deep voice: "What's your name?"

"Excuse me, student Sun Yuanhua." Sun Yuanhua did not raise his head, but still touched the ground and said respectfully.

Listening to Sun Yuanhua's tone, Emperor Tianqi nodded slowly. There was no excitement or fear. It was really not easy. However, Sun Yuanhua said he was a student, so he was obviously not an official, but he should have achieved fame.

With a gentle wave of his hand, Emperor Tianqi said softly: "Get up! The ground is cold!" He laughed and walked behind the dragon desk and sat on his own dragon chair.

"Come here, bring a chair for Mr. Xu!" Emperor Tianqi looked at Wang Chengen and ordered loudly.

At this time, Sun Chengzong and Xu Guangqi were already greeting each other. The two had met several times. Sun Chengzong was one of the few people who knew what Xu Guangqi was doing. Now seeing Xu Guangqi's appearance, Sun Chengzong knew that this person was similar to him.

, but the way of serving the country is different!

He saluted Sun Chengzong and said respectfully: "I have met Mr. Sun!"

Sun Chengzong quickly supported Xu Guangqi and said with a smile: "Master Xu, please don't do this. The emperor is not polite to you, let alone me!"

"Master Sun is kidding!" Xu Guangqi also knew Sun Chengzong's status and personality, so he smiled calmly and said in a brisk tone.

After both of them sat down, Emperor Tianqi slowly spoke: "Xu Aiqing, what are you doing? How did you end up like this?"

"Back to the Emperor, since the last time the Emperor said to stop the production of current artillery, I have been studying the new type of artillery that the Emperor mentioned. There has just been a small progress. I am working hard to improve it." Xu Guangqi wanted to stand up and say

, after being motioned by Emperor Tianqi to sit down and talk, he said in a deep voice.

Sun Chengzong on the side was slightly stunned. He did not expect that Emperor Tianqi actually improved the production of artillery and actually wanted to develop a new type of artillery. Sun Chengzong still remembered the last new type of artillery, which was always erected on the city wall.

The huge artillery is really too powerful. I used that kind of artillery in the Battle of Shenyang City. Is there another more powerful artillery?

Emperor Tianqi nodded slowly. Emperor Tianqi smiled and said: "Has Ai Qing read the record about gunpowder in Qi Jiguang's "New Book of Jixiao"? Has there been any experiment on the above statement about granular gunpowder?"

Xu Guangqi was slightly stunned. He thought Emperor Tianqi would ask some questions about artillery. Unexpectedly, he asked about gunpowder first. After a moment of pondering, Xu Guangqi said in a deep voice: "This minister studied it carefully after he went back. According to Marshal Qi's

The method was done, and then granular gunpowder was used to make cannonballs and primers, which not only have a longer range but are also more powerful than the original ones. After Weichen's experiments, the range was almost half as high as the original ones. The power is about the same.

Look!"

Sun Chengzong on the other side listened in confusion. He had naturally read Qi Jiguang's new book Ji Xiao. Sun Chengzong admired and liked some of the tactics and things in it. He also wrote about granular gunpowder.

I have seen it, but he paid more attention to combat methods and tactics. The manufacture and modification of artillery were not Sun Chengzong's strength.

However, when Sun Chengzong heard that the power and range of the artillery could be increased by more than half after using granular gunpowder, he was immediately surprised. If calculated this way, just by improving this aspect, the Hongyi cannon can not only hit ten miles

In addition, it is also much more powerful than before.

Sun Chengzong's mind was constantly turning. Since Emperor Tianqi and Xu Guangqi wanted to develop a new artillery, I am afraid that this is not the only improvement, but this is probably the foundation.

Emperor Tianqi nodded slowly. In real history, many of Qi Jiguang's works failed to work due to party strife. Qi Jiguang himself was denounced by the court, let alone the books he left behind. Now he can truly

After using it, I believe Qi Ji can rest in peace if he has knowledge under Guangquan.

"This has been done very well. All future gunpowder will be produced this way. However, the formula must be kept secret first, and the details of Ji Xiao's new book must not be revealed." Emperor Tianqi pondered for a moment and said in a rather serious tone.

Emperor Tianqi and Xu Guangqi were talking there. Sun Chengzong sat aside and frowned as he listened. He couldn't help but interrupted and said: "Master Xu, can you talk to me? I really don't understand."

Xu Guangqi was slightly stunned, and smiled as Sun Chengzong glanced at him and motioned for him to look at Emperor Tianqi. He did not expect that Sun Chengzong, the dignified chief minister of the cabinet and a great scholar, would actually have such a side.

After receiving Xu Guangqi's hint, Sun Chengzong realized that this was not a matter of discussion between a few people, but a prelude to facing Emperor Tianqi. After giving a salute to Emperor Tianqi, Sun Chengzong said respectfully: "Your Majesty, forgive me, I am a humble minister.

Salute!"

Seeing the embarrassment on Sun Chengzong's face, Emperor Tianqi immediately laughed. It was obvious that students of all ages would be secretly happy to see his teacher like this.

Seeing the playful look on Emperor Tianqi's face, Sun Chengzong felt even more embarrassed. Sitting aside, he seemed to be nothing.

Emperor Tianqi felt that it was almost done. He waved his hand gently and said with a smile: "Sir, don't worry about these trivial matters. I understand your desire to serve the country." He turned his attention to Xu Guangqi again and said with a smile: "Xu Aiqing

, since sir wants to know, then you should talk to him!"

"Yes, Your Majesty!" Xu Guangqi said respectfully after saluting Emperor Tianqi.

Turning his gaze to Sun Chengzong, Xu Guangqi was about to start speaking, and his expression became extremely serious, as if what he was about to start was an extremely sacred thing.

Sun Chengzong also became serious at this time, sitting up straight and looking like he was listening attentively.

Seeing the expressions of the two people, Emperor Tianqi felt funny at first, but after looking at it for a while, Emperor Tianqi couldn't laugh anymore. His heart was filled with emotion. This was his minister, a loyal minister of the Ming Dynasty, and he could also be said to be a loyal minister of the Ming Dynasty.

The hope of the Ming Dynasty.

"His Majesty is very dissatisfied with the variety and power of current artillery, so he ordered me to develop a brand-new artillery. This kind of artillery should have a longer range, greater power, and at the same time be smaller.

volume. So everyone in the firearms factory has invested in this. The first step we have to solve is the problem of gunpowder. Only better gunpowder can exert greater power. This idea was thought up by the emperor, and he later consulted the classics

Later I discovered that it had been recorded in General Qi's book." Xu Guangqi said slowly, and he was not very sad when he said this. I don't know if he was lamenting Qi Jiguang's unfair treatment.

Sun Chengzong on the other side was fascinated by what he heard and admired Emperor Tianqi's talents even more. If he really had such artillery, he would be even more powerful in organizing and training the new army in the future.

After pondering for a moment, Sun Chengzong said in a deep voice: "First mix the nitrates and charcoal in proportion and pound it repeatedly to make it fine. Then add an appropriate amount of water or shochu and pound it a second time to make a mud.

After drying in the shade, crushed and sieved, the finished granular gunpowder can be obtained. The mesh sizes are different, and the gunpowder obtained is used in different firearms. These are recorded in General Qi's book, but the methods and proportions used are very vague.

, Presumably only General Qi himself knows this, right?"

In response to Sun Chengzong's question, Xu Guangqi nodded with a smile and said with pride: "Your Excellency is indeed knowledgeable, and General Qi will not record it in such detail. Xiaguan and others have experimented many times based on the records in the book.

I probably figured out how to use this kind of gunpowder. Later, General Qi Jin came to the capital, and my subordinates went to see General Qi privately and asked some things about artillery. Now there is no big problem with the use of granular gunpowder.

.”

Sun Chengzong had to sigh in his heart, Xu Guangqi was worthy of being a talent in firearms, and it was not without reason that Emperor Tianqi valued him so highly. Sun Chengzong nodded slowly, and Xu Guangqi continued.

After pondering for a moment, Xu Guangqi finally spoke: "The artillery produced this time is divided into two types. One is a small artillery suitable for two people to carry. The other is an improved Frankie gun. Your Excellency should know that...

The rate of fire of the Frankie cannon is much faster than that of the Hongyi cannon, but the range is much different. The maximum range of the Frankie cannon is only four miles, and it is bulky and difficult to carry. This time, the commander wants to improve it.

For the Longi Cannon, one is to reduce its size, and the other is to extend its range to be similar to the range of the Hongyi Cannon."
Chapter completed!