For Zhu Yijun, the Ming Dynasty now has two very important plans, which are not only important, but also extremely confidential. This is why Zhang Jing didn't even say it when Shen Shixing was there, because Shen Shixing couldn't know about this matter.

The two plans are responsible for implementing the Royal Academy of Sciences of the Ming Dynasty. The tenth-level person in charge is Xu Guangqi, and one of them is the Invincible Cannon Plan.

The so-called Invincible Cannon Plan is actually very simple, which is to create an epoch-making cannon.

This cannon has been epoch-making since its design. This plan began three years ago and was led by Xu Guangqi. Zhu Yijun has invested a lot of manpower and material resources in the past three years, and has not produced much so far. It is precisely because of such a large amount of investment that Xu Guangqi devotes himself to the project.

Over the past three years, Xu Guangqi has entered the palace for a limited number of times, and every time he comes, there is something big.

When he came to the front, Zhu Yijun saw Xu Guangqi at a glance. The young man trained by Zhu Yijun had already had a good attitude at this time. Especially his scientific attainments had long surpassed Zhu Yijun, a half-baked person. In addition to some insights from later generations, Zhu Yijun was no longer as good as Xu Guangqi.

As the president of the Royal Academy of Sciences of the Ming Dynasty, Xu Guangqi is definitely awesome, and no one dares to refute this.

"My minister Xu Guangqi, please see Your Majesty!" Seeing Zhu Yijun coming, Xu Guangqi hurriedly bowed and said.

Nodded, Zhu Yijun waved his hand and said, "You are not polite!" As he said that, Zhu Yijun asked directly, "Is there anything important to enter the palace today?"

"Back to Your Majesty, the yellow flame has been developed successfully!" Xu Guangqi bowed and said.

As soon as he said this, Zhu Yijun stood up from the imperial throne in shock. Although he had been looking forward to this day for a long time, Zhu Yijun still couldn't believe it. He succeeded? Of course, this yellow explosive is not nitroglycerin or tnt, but trinitrophenol, which is picric acid.

Because its pure substance is slightly yellow crystal at room temperature, it is turned into yellow gunpowder.

At the end of the 19th and early 20th century, picy sour was still the best gunpowder, and it was not until the beginning of the 20th century that it was replaced by TNT, known as the king of explosives. Compared with black gunpowder, this thing is much better. How could Zhu Yijun be unhappy?

Zhu Yijun didn't know much about picy sour. He just remembered that this thing was used as a yellow dye at the beginning of its birth. Zhu Yijun only mentioned it once when he was formulating the Invincible Cannon project. Zhu Yijun didn't expect that Xu Guangqi really gave him a surprise, and he actually made this thing out.

"Tell me, how did you do it?" Zhu Yijun looked at Xu Guangqi and asked with some excitement.

Zhu Yijun couldn't help but be excited about this matter. Once the picric acid is applied, the Ming Dynasty's cannon will definitely be able to take it to the next level.

"When you go back to your Majesty, the Invincible Cannon Plan needs to solve many problems, among which gunpowder is the most important one. The black gunpowder used now cannot meet the requirements of the Invincible Cannon. After your Majesty mentioned yellow gunpowder, I became concerned. I asked someone to collect all the yellow dyes and then conduct continuous experiments."

"A few days ago, the experiment finally succeeded, and we successfully made yellow gunpowder."

"In addition, we have also achieved certain results in the production of raze mercury. I believe that in a while, we will also make breakthroughs."

Zhu Yijun nodded with satisfaction. The so-called Invincible Cannon Plan is actually to make a reliable rear-loading gun. Metal fixed-loading shells and single-shot loading. The most typical example is the cannon called Italian cannons later in life. In fact, this cannon is the French 1897 Type 75mm field cannon.

When Zhu Yijun proposed this plan, it was basically the lifetime series.

Although I don’t know if it can be done, I must try it. Perhaps a lot of new things will be produced in this process, and these things are all epoch-making.

"Your dear, tell me the overall progress!" Zhu Yijun looked at Xu Guangqi and asked.

"Yes!" Xu Guangqi agreed and began to introduce the entire project to Zhu Yijun: "I divided the entire project into several groups and carried out at the same time. One of them is the research and development of artillery shells, including several groups, such as new gunpowder and firing drugs, including the design and production of artillery shells."

"On the gunpowder and firing medicine, the yellow gunpowder has been completed, and the thunder mercury is in progress."

"In terms of shells, the water conservancy stamping machine can only forge copper shells. Although I have solved some of them in the continuous improvement of this aspect, the effect is not very good. Before obtaining a new power source, I can only use it barely, and the power source requires steam planning to make progress."

Zhu Yijun nodded. The second of his two lifetime plans was the steam plan, that is, the development of steam engines.

The project was much slower than the Invincible Cannon Plan, and there was no substantial progress now. Although I was a little disappointed, Zhu Yijun also knew that the thing was not that easy, so I could only take it slowly. Who told me that I was not an engineering student? If I were an engineering student, Zhu Yijun would carry the hammer on himself.

"In addition to the shells, it is the cannon itself. I have carefully studied the letter cannon and tried to forge a new type of gun barrel. The overall progress is not slow."

Zhu Yijun looked at Xu Guangqi with a look of relief on his face. If he could really make a reliable post-installation, it would be a landmark product.

Once the Invincible Cannon Plan is implemented, it will promote the development of the entire military industry of the Ming Dynasty, and it will also radiate the overall industry of the Ming Dynasty. The implementation of metal fixed-mounted artillery shells and rear-mounted artillery is enough to allow the Ming Dynasty to create metal fixed-mounted rear-mounted guns, which is the famous m1841.

Once manufactured successfully, the rear-loaded guns and Italian cannons will be released from the Ming Dynasty, which represents a very meaningful meaning.

"Keep working hard, I want people to give them money, I want money!" Zhu Yijun looked at Xu Guangqi and said with a smile: "We must also hold on to the steam plan and get things out as soon as possible. Even if it is a little bit simple, it doesn't matter. We can improve it little by little, there is no need to be perfect."

Although he is a liberal arts student, Zhu Yijun also knows that the technology of steam engines has not been developed in one step.

The earliest steam engines were very simple and had many problems, such as not being able to build ships or use them on trains, but they would provide a stable and continuous source of power that could promote the industrial level of the Ming Dynasty, whether it was mining, iron smelting or military technology.

This is really very important to the Ming Dynasty. Many things cannot be manufactured because of insufficient power sources.
Chapter completed!