When he returned to Liuchun Garden, Yinzhen's good mood was immediately destroyed by Kangxi's secret letter. In the secret letter, Kangxi did not say much and just reposted the rumors about the capital.

Yinzhen immediately realized the danger. What would they do if the maritime merchants wanted to deal with him? They could only get themselves stuck on the wood. Once the wood was stuck, their ocean-going fleet would face the dilemma of putting no rice into the pot. [The latest updates are all in search.]

There is not without wood in Jiangsu, but there are abundant tung oil and palm trees in Zhongshan, Jiangning. But what I want to build is a fleet and a huge ocean-going trade fleet. The wood in Jiangsu is far from meeting the number and type.

Who is the one who is making trouble behind the scenes? The most important thing is that the son and the party are, and it is a trick to get rid of the firewood from the cauldron. It is really a long time to play with it. When it comes to wood, Yinzhen is really blinded. He knows that there are many woods in the northeast and what kind of wood are usually used for shipbuilding. He is not that he has not paid attention to the talents in this area, but there are many officials in the capital, and there are many scholars. But there are few who know how to build ships, not that there are few but that there are almost no one. When he passed by Jiangning, he recruited some boatmen, but they will not come after the New Year. After thinking about it, he called Haifeng, "Take my famous post and go to the Zhang family to invite Miss Zhang Mengjiao and Zhang."

Hai Feng suddenly felt inexplicable. Didn’t he break up? He went to invite him again? He didn’t dare to ask too much, so he quickly responded.

Before Haifeng left, Dachun reported outside the door, "Master, there is a scholar outside asking for a visit, claiming that he was recommended by Mr. Xu."

When Yinzhen heard this, he knew that it was the firearm talent recommended by Chief Xu, so he casually ordered, "Please come in."

Sun Changhao was wandering next to the gate of Liuchun Garden in a complicated mood. He was the fifth-generation grandson of Sun Yuanhua, whose courtesy name was Zi'an. Sun Yuanhua was a senior official in the late Ming Dynasty. He served as the right assistant censor of the Ming Dynasty and the governor of Denglai. He was a student of Xu Guangqi, and was also a famous Western artillery expert in the late Ming Dynasty. In the fifth year of Chongzhen, he was unjustly killed by Emperor Chongzhen, and the Sun family fell into ruin. After the Qing Dynasty unified the world, the Sun family moved out of Chuansha County for fear of revenge. After the world was peaceful, they moved back to Chuansha.

Sun Changhao studied scriptures hard since he was a child. After becoming a scholar, he stopped taking the scientific examination and studied various books he passed down from his ancestors. Later, due to his limited life, he entered a fireworks workshop to develop gunpowder to make a living. Now he is in his forties. After receiving a letter from the head of the Xu family, he did not feel much panic, but was more excited. Being able to fiddle with firearms openly was his biggest dream in his life. Although there were several muskets buried in his family, the court's control was too strict and he dared not take it out easily. This recommendation was really rare for him.

Sun Changhao walked into Yinzhen's study with a hint of nervousness and trepidation. After seeing the ceremony, Yinzhen gently asked him to sit down and asked someone to serve tea. At the same time, he also looked at him carefully. The man was dressed simply, his body was a little thin, with a national face, a bright and radiant eyes that were incompatible with the vicissitudes of his face, and his hands were rough. Although he seemed a little cramped, he was not uneasy and couldn't help but feel secretly happy. This guy was afraid that he had some information and should be pragmatic. At that moment, he asked with a smile: "Where is Mr. Sun?"

When Sun Changhao heard Yinzhen’s question, he became calm and said, “Entertaining gunpowder ratio in a firecracker workshop.”

It turned out to be a technician, and Yinzhen became interested, "How should the gunpowder of the gunpowder be matched with the gunpowder of the gunpowder?"

Gunpowder is his strength, Sun Changhao replied confidently, "In "Ji Xiao New Book", it is 1 tael of nitro (accounting for 75.75%), 1 qian of 4 cents of sulfur (accounting for 10.6%), and 1 qian of 8 cents of charcoal (accounting for 13.65%). I have experimented many times and this ratio is the best. In fact, the gunpowder made from the same ratio is also very different. I think the root cause lies in the purity of the raw materials. The purer the raw materials, the better the effect of the gunpowder made from."

"You can purify the raw materials?" Yinzhen was a little surprised.

Sun Changhao said calmly, "There are records in the book, and I have tried it countless times, and the results are very good."

This is a talent, and the ratio of gunpowder is basically the best ratio (you should know this, 75% nitride, 10% sulfur, and 15% charcoal). What is rare is that he actually had the view of raw material purity in this era known for his vagueness, and he could purify it. He is worthy of being a professional technician. It was not until this time that Yinzhen realized that he had neglected that his ocean-going fleet would not have his own special gunpowder workshop.

Yinzhen couldn't remember whether there had been any pellets of gunpowder these days, so he had to ask vaguely, 'The gunpowder you made in your workshop is powder?"

"It's not all, it's powder for firecrackers, and granules for firecrackers."

There were already granules, Yinzhen said intimately, but fortunately he didn't show off. He continued, "Do you have any experience with firearms?"

Now Sun Changhao showed a embarrassed expression, "It's all read books, and I haven't touched the real thing, so I really can't say I have any experience."

Yinzhen was a little curious, "What books are you reading?"

"The Artifacts, Western Arts, Fire Attack, Military Arts, Fire Artifacts, Fire Dragon Artifact Formation, Wubeizhi, etc.," Sun Changhao reported one by one as he knew it.

Yinzhen suddenly felt depressed. I had never heard of most of these books. Where did he come from? He guessed and asked, "Has it passed down from ancestors?"

"Yes." As soon as he said it, Sun Changhao felt something was wrong, and his face suddenly became a little unnatural.

Who is Yinzhen? He is used to interrogating. When he saw this, he immediately felt strange. What is the name here? His ancestors, was his ancestors a celebrity in the anti-Qing Dynasty? Sun Yuanhua, the Western artillery master Sun Yuanhua, Yes, Sun Yuanhua is Xu Guangqi's student. "The Western Swords" seemed to be written by him. He was excited, "I didn't expect you to be a descendant of Sun Yuanhua, it's very good."

When Sun Changhao heard that he had reported his grandfather's name, he felt a little uneasy. Yinzhen comforted him when he saw it, "You don't need to panic. Master Sun was loyal to the Western learning and was unfaithfully killed by Chongzhen. It's really a pity. Forget it, don't talk about these sad things. If you do it in a real way, don't think too much."

Seeing that Yinzhen was very respectful to his grandfather, Sun Changhao immediately felt relieved and knelt down, "Thank you for the praise of the Fourteenth Master."

"Get up." Yinzhen thought to himself, this person has a good background, is cautious and pragmatic, and is not easy to talk about. He is a talented person. Seeing his simple clothes, he thought that his family had already fallen. For nothing, he should take good care of his descendants by Sun Yuanhua. "It is not enough to have knowledge of books alone. In the future, it is not enough to get in touch with real objects and think more. Don't lose your grandfather's name. However, you have to help me build a gunpowder workshop first, with about two thousand cannons and 20,000 muskets guns. You are also responsible for the raw material procurement. I only want the best gunpowder. In addition, go back and try the ratio of 1 tael and 5 cents of nitrogen, 2 cents of sulfur, and 3 cents of willow charcoal. Let's see who's better?"
Chapter completed!