After Chongzhen explained the relevant matters of cement production, he did not linger in the market, and returned directly to the palace. Although the capital of the Ming Dynasty www.biquge.info prosperous, the streets were full of vendors, Chongzhen and others walked through it, and they were not conspicuous, and several people were dressed in civilian clothes, which was very low-key. Therefore, no one recognized Chongzhen, and even if there were those with bad intentions, they would be restricted by a strict protection net. So the road was peaceful, and there were no accidents. At this time, although there were internal and external troubles in the Ming Dynasty, under the heavy supervision of Jinyiwei and Dongchang, the safety of the Jingshi was still within the controllable range. And there are several brocade guards around him to protect him, these are all good hands, and ordinary assassinations will not cause harm to his own person at all.

As the supreme ruler of the Ming Dynasty, Chongzhen's safety is related to the country's society, after Chongzhen ascended the throne, in order to prevent dissenting forces, Tian Ergeng, as the commander of the Jinyi Guard, can also be regarded as dedicated, in Chongzhen's side to set up a strict secret agent, in order to protect the emperor's thoughtfulness.

But despite Tian Ergeng's efforts to do all this, Chongzhen will not be moved, he understands that he must not let his own safety be handed over to this person, so Chongzhen casually found an excuse to let Tian Ergeng retire early. But Chongzhen did not do anything wrong, and gave him all the treatment when he was in office, which can be regarded as benevolence and righteousness.

In the process of arranging the firing of cement, Chongzhen thought of a rather serious and troublesome problem. Daming's chemistry has not yet formed an independent research discipline, and is still in a state of almost embryonic state, which is very unfavorable to its idea of revitalizing Daming's economy through the chemical industry. Therefore, Chongzhen decided to compile a set of basic chemistry textbooks as soon as possible, combined with the existing chemical level, which can quickly popularize chemical knowledge.

In the Qianqing Palace, Chongzhen, who was sitting on the dragon chair, did not stop for a moment, and began to write hard. The brush used by Chongzhen at this time is a pure wolf pen, and the inkstone is a clear mud inkstone. Chengni inkstone is made of mud, the process of Chengni inkstone is very exquisite, generally it is made of extremely fine mud obtained by precipitation of silk clay mud after treatment, and it can also be made of fine mud naturally deposited in silk bags by using river water. Then the river mud is slightly dried, add Huangdan and other materials, and then put it in the mud mold, the mud is pressed into a blank, carved into the general shape of the inkstone with a bamboo knife, and then carved with a metal carving knife, exposed to the sun and dried, add wheat bran and so on into the kiln to burn into pottery, take out and add ink wax, rice vinegar on the basket to steam it, so that it is finally made, its texture is hard and fine, and the ink does not hurt the pen head. A small mud inkstone has to go through 12 processes such as mud, ingredients, pounding, molding, carving, roasting, and cooking.

Chengni inkstone is processed and fired with special cement due to the different firing process and time, it can be a variety of colors, some inkstone is multi-colored, especially pay attention to carving technology, there are relief, semi-tire, three-dimensional, passing and other varieties. Due to the use of fine mud that has been washed as raw materials, the texture of the Chengni inkstone is delicate, like the skin of a baby, and the moisturizing water can be comparable to the characteristics of the stone inkstone.

Wang Chengen was grinding ink on the side, and the ink flowed in the fine Chengni inkstone, exuding a faint fragrance from time to time. Although Chongzhen has not specifically practiced calligraphy, he has good writing skills, and with a little practice, he can write freely.

The chemistry foundation that Chongzhen wants to compile is just a condensed version of the chemistry textbook, which includes element symbols, chemical formula writing, chemical equation writing, reactions between common substances, the composition of air, the preparation of common gases, and so on.

Chongzhen's writing speed is very fast, and all the chemical knowledge is bubbling out like flowing water, like pouring waves on the tip of the pen. On the rice paper in front of Chongzhen, a full handwriting was quickly left.

And Wang Chengen, who was on the side, looked at Chongzhen who was so focused, and once again felt that Emperor Chongzhen beside him was so unfamiliar. What Chongzhen wrote, except for the few Chinese characters that Wang Chengen can recognize, many words and symbols feel as mysterious as a book from heaven. At this moment, Wang Chengen felt that the Chongzhen in front of him was as heroic as the rebirth of Emperor Hongwu, and the admiration in his heart arose, and the movement of grinding ink on his hands became more powerful.

Time was passing quietly, the sky was gradually darkening, and the imperial dining room had already heated the food several times, but Chongzhen did not feel hungry at all, and it was only after the last bit of content was written that Chongzhen realized how tempting the fragrance of the food was, and after some gobbling up, Chongzhen felt that he had never been satisfied.

"Someone, Zhang Bingliang, the envoy of Xuantai Hospital." Chongzhen is not willing to wait for a moment, time can't wait, he must train a group of chemical talents as soon as possible, and the best candidate now is Zhang Bingliang, the envoy of Tai Hospital.

Cao Huachun, who was on the side, immediately took the order and left. Cao Huachun's fate was more bumpy, in the early years of the Apocalypse, Wei Zhongxian was favored and powered, and after killing Wang An, Cao Huachun was implicated and expelled from Beijing, and sent to stay in Nanjing. A few days ago, Chongzhen recruited Cao Huachun back from Nanjing, and worked as an errand in the Qianqing Palace, responsible for delivering the holy decree to the outside world, and contacting the ministers of the outside world. However, for the time being, Chongzhen did not plan to deal with the Donglin Party, so Cao Huachun has been idle and has been arranged in the Qianqing Palace for the time being.

Originally, Wang Chengen was under the name of Cao Huachun, but now Chongzhen is no longer the original King of Xin, and is closer to Wang Chengen.

However, Cao Huachun has no complaints about all this, it is already a great kindness that he can return to Beijing smoothly, and now Chongzhen can still trust himself, and he is grateful in his heart. Cao Huachun did not have any dissatisfaction with his current position, and was very satisfied, compared to the days of exile in Nanjing, it was a world of difference in the past half a month.