Ming Zhengzhi, I am Zheng Kezang

The new year is actually very boring, but Chen Zhaoniang doesn't think so. Taking advantage of her son's lack of anywhere to hang out, she has hosted banquets for four or five days in a row with the female family members of important ministers' families. Zheng Kezang chooses a wife who can help him in the future.

Of course, Chen Zhaoniang did this because Zheng Kezang suffered a lot due to her identity, and Zheng Kezang, who understands his mother's wishes, would naturally not cooperate in this matter, so Zheng Kezang has suffered a lot these days Zang, every day he has to pretend to be a handsome young man in front of people.

"Qinshe, come here to meet the wife and son-in-law of Chief Envoy Chen." Finally one day, Zheng Kezang saw Chen Xianqiao, the girl who died for him in the history of the previous life. At this time, Chen Xianqiao was only 13 years old, with snow-white With a complexion, big eyes, and charming long braids, it really looks a little kawaii at first glance.

Although it wasn't the first time we met, but after all, he couldn't keep his eyes on each other, so Zheng Kezang bowed his hands to Chen Yonghua's wife.Mrs. Chen had heard her husband talk about her young and mature appearance at home, so every time she stared at her, there was a sense of curiosity, and Zheng Kezang was so burned that he was either standing or sitting.

As if seeing her son's uneasiness, Chen Zhaoniang and Mrs. Chen whispered a few words with a smile on her face, and then ordered: "Qin She, take your slender sister to the garden, remember not to delay the time to come back for lunch."

Looking up at Zheng Kezang Juhan, who was looking up at the sun, would he waste time with the 13-year-old little loli because of the in-depth communication?I really don't know what Chen Zhaoniang is thinking, this obvious hint can be said out of the mouth, it seems that the marriage between them is almost settled.

"No!" Zheng Kezang responded and took the little loli out of the yard, but he was dumbfounded when he came out. Speaking of which, he is not proficient in poetry singing and the so-called boudoir joy. How could he, who has been a human being for two lifetimes, play the game and pay attention to it.

But looking at Chen Xianqiao who was silently following behind him like a little daughter-in-law, Zheng Kezang was a little powerless, and finally he came up with an idea: "Sister Xianqiao, let's make a kite and fly it."

"Fly a kite?" Chen Xianqiao tilted her head and thought for a while, then nodded lightly. The 13-year-old girl already knew a lot of things, so she naturally didn't want to disobey the man who might become her husband in the future. "Okay, but Yu can't do it!"

"I'll leave it to Yu to make the kite." Zheng Kezang embraced it, but when he saw the look in the girl's eyes, his heart moved. "However, there is a job for you, Sister Xianqiao." Chen Xianqiao looked at Zheng Kezang with wide eyes, and Zheng Kezang grinned. "Yu Ke doesn't know how to draw. Mr. Chen's family education is very strict. My sister Zihong should be pretty good. Why don't I trouble my sister to draw a picture?"

Chen Xianqiao nodded hesitantly, but she didn't expect Zheng Kezang to grab her hand, pull it up and run away. She was shocked for a moment and was about to shout, but Zheng Kezang had already dragged her body, so she had to stumble and follow her. up.

The two quickly ran into Zheng Kezang's room: "Sister, please rest for a while, and then I will ask someone to find drawing paper for you."

While Zheng Kezang was talking, he started to clean up the pens and inkstones on the table, but his words seemed to disappear, and he didn't wait for Chen Xianqiao's response for a long time.Zheng Kezang just raised his head and looked over, and saw Chen Xianqiao sitting on the round stool with her lips pouted, rubbing her feet with one hand and covering her heart with the other, obviously she hadn't recovered from the running just now.

"What, sprained your ankle?" Zheng Kezang came over, and seeing the girl's angry look, he suddenly felt a little throbbing. Of course, he would not attack the 13-year-old yellow-haired girl, he just wanted to play a prank, so He knelt down and reached for the girl's legs. "Does it hurt, I rub it for you."

"Wow!" Chen Xianqiao cried out anxiously when she saw Zheng Kezang's hand was about to be placed on her lap. "You bully people!"

"I started crying after how to say it." Zheng Kezang was still a little confused at the beginning, but after thinking about it carefully, he remembered that the famous teachers of this era are very particular about whether men and women can kiss each other. If he really put his hand on it, it would be terrible. It's not a prank but a tease. "Forget it, forget it, if you cry any more, Yu's place will be flooded with water." Zheng Kezang hastily made jokes and begged for mercy. "Sister, good girl, I will spare Yu this time."

"But, but you grabbed Yu's hand." The little girl was crying, but Zheng Kezang, who was scrambling to comfort her, inadvertently noticed the gleam in her eyes after a successful trick. "If others spread the word, Yu, how will Yu go out and see people?"

"What a cunning little hoof." Zheng Kezang sighed secretly, but he still wanted to say what he had to say. "Who dares to chew his tongue, who dares, Yu killed him!" The murderous words frightened Chen Xianqiao all of a sudden, so that the girl didn't know what to do next. Immediately changed his appearance. "But I've got my hands too, so I'm going to spread the word, otherwise, my sister will marry Yu." Zheng Kezang took a tight step, almost touching the little girl's face. "There is no gossip now!"

"Ah!" Chen Xianqiao was completely terrified. Seeing her like this, Zheng Kezang knew that he couldn't keep teasing her anymore, so he winked at him, which relieved Chen Xianqiao who came back to her senses. Come on, but the little girl immediately became angry when she let go of her heart. "Hmph! Bullying people again, dad is right, the eldest son is really not a good person."

"What, Mr. Chen said that Yu is not a good person, and Yu doesn't believe it." Zheng Kezang shook his head, seeing that the little girl was about to speak again, he interrupted hastily. "Don't talk so much," Zheng Kezang picked up his pen. "The ink has been sharpened for you. Yu went out to find a few pieces of bamboo. By the way, someone will bring you the drawing paper. Let's compare later, who will finish his homework first."

"Comparison!" Chen Xianqiao wrinkled her nose unconvinced. "Yu Buxin, you can make skeletons faster than Yu Huahua!"

I have to say that Chen Xianqiao's tutor is good, and she looks decent with a dragonfly drawing, which is far more successful than Zheng Kezang's half-baked bamboo craftsman. Looking at his own success, instead he focused on watching, watching

As soon as the Shangyuan Festival was over, Zheng Kezang fled out of Anping City in a blaze of fire—even though the boy camp had not resumed at this time, several workshops in his hands had already started to work again, and he knew what was left for him. Zheng Kezang, who was running out of time, really had no choice but to seize all available gaps.

Zheng Kezang's first destination was the retort kiln next to the cement kiln.

Zheng Kezang vaguely remembered that the description of wood carbonization on Du Niang was like this, that is, "Put the wood in the carbonization kiln and heat it to decompose under the condition of being isolated from the air; the escaped volatiles cannot be condensed. of wood tar and pyroligneous acid; the remaining solids are charcoal."

But it was the words "isolate the air" that made Zheng Kezang suffer a lot. In several tests, either he could not fully preheat, or the furnace body burst due to the final pressure of the closed container was too high.After several failures and lessons, Zheng Kezang had to abandon the concept of fully enclosed, and boldly tried to add a vent pipe in the inner tank to draw out the hot gas, then condense it with water in the circuit, then divert the wood tar, and finally return the wood gas to the Lost the combustion chamber, but this experiment had to be interrupted due to the holiday of the craftsmen for the Chinese New Year, and now it is time to pick it up again.

"It seems to be done this time." Looking through the observation window, Zheng Kezang watched the fire turn blue and white in an instant, and Zheng Kezang showed a hint of joy for being late. "Stop, don't add any more firewood." There was no more fuel, but the fire was still burning. Zheng Kezang knew that it was the wood gas that had been ignited. "Wait and watch the fire carefully."

Facing the astonished craftsmen who were faced with such a strange scene, Zheng Kezang didn't give any explanation, but just took care of them.Then he walked quickly to the condenser pipe, broke the mud seal on the pottery pipe with his own hands, and a light black oily substance with a smell of smoke flowed out of the pipe slowly.

Zheng Kezang hurriedly ordered someone to fill it in clay pots, and at the same time explained: "This thing is poisonous and cannot be eaten, and you can't smell it too much, so you should cover your mouth and nose when accepting it, and remember to seal it with mud immediately when you fill a pot. , don’t let it evaporate.”

"My lord, this thing is smelly and poisonous, what can it be used for?"

Craftsman Xu, who was guarding the cooling pipe, asked for some unknown reason. In his opinion, since it is a poison, why bother to refine it? Could it be that Zheng Kezang was planning to use it to perform witchcraft or smear it on the arrowhead to kill him? Enemy?

"Using this thing can be used to prevent wood and bamboo from decaying, and it can also be used as a smoke pot after being ignited." In fact, the real use of wood tar lies in the extraction of organic compounds with high hydrocarbons, acids, and phenols. Zheng Ke Zang neither has the conditions nor the ability to further process it. "Okay, prepare some more of this thing and send it to the Ministry of Industry. The Ministry of Industry will use it to dehydrate the bamboo tendons. By the way, remember to tell them to pay attention to protection after sending it."

Carpenter Xu nodded, and at this time Zheng Kezang returned to the fire: "Everyone is watching, if the fire goes out and the tar doesn't flow out, it means that the wood in the kettle has been distilled into charcoal. , but don’t be in a hurry to turn on the stove, let’s simmer for a day or two before talking.”

"Young Master, don't worry, we've been burning charcoal for so many years, so we know the truth." The master in charge of controlling the heat assured him, but he didn't have any doubts. "But my lord, besides having a little more stinky oil, dry distillation of such a furnace of charcoal costs a lot more firewood than direct firing, isn't it worth it?"

"It's worth it!" Zheng Kezang laughed. For these Ming Dynasty people who didn't know what chemistry was, Zheng Kezang couldn't explain much, so he could only use an example to illustrate. "Next time I will find some pine wood for dry distillation, and what will come out will be turpentine, which is a good medicinal material. It can not only disinfect and antibacterial, but also deworm and treat rheumatism and bone pain."

The master thought that disinfection was detoxification, and he was confused as to what antibacterial was, but he could understand how to treat rheumatism by repelling insects. After all, due to the accommodation conditions in this era, rheumatism is still a common chronic disease among the lower class. .

"That's a great merit. However, if you don't tell me, you really can't see it. This stinky thing can be used as medicine. You are worthy of being the prince's eldest son. You really know a lot."