The death of the Supreme Emperor made the Tang Dynasty a lot more dull. The curfew was carried out according to the original time. Even the major entertainment venues in Chang'an City became deserted, and this situation must be maintained for at least half a year.

Also, the royal family's immediate relatives even banned sexual intercourse, and Yang Heng was naturally among the banned ones. You must know that he is the emperor's direct relative and grandson-in-law.

Well, the daytime entertainment is gone, and the nighttime entertainment is gone. However, for Yang Heng, it doesn’t matter whether there is or not, because Changle is pregnant now. However, in order to avoid taboos, Changle still drove Yang Heng away because he was afraid that some rumors would come out, which made Li Er difficult to do, and Yang Heng didn’t care about these.

In this case, Yang Heng could only devote himself to the great cause of scientific research. But what did he need to do? He studied how to decompose gasoline. If diesel is not enough, he really couldn't get involved. He could only describe to people what gasoline looks like, what tincture oil looks like, and what diesel looks like.

"Oh, by the way, I seem to have forgotten something. As a time traveler, why did I forget the most prosperous thing?"

Suddenly, Yang Heng remembered the glass mirror. You know, glass mirror was the most profitable product in his previous life and in Europe for a long time. This thing even rose to the patent protected by the state.

By the way, when colorless glass was made, did people arrange to make mirrors? It seems that there is really nothing.

Thinking about it, Yang Heng slapped his head. He had a wide store, so it was normal for him to lack money, but how could he forget such a profitable project?

By the way, how do mirrors be made? Silver plating, mercury, aluminum plating, there are silver and mercury, but there is no metal like aluminum yet. So, let’s study silver plating and mercury.

But who should I find to study and manufacture this mirror? The Taoist priests in charge of chemistry and their apprentices have failed. They have now been engaged in the development of oil.

"Butler, do you think there is any master in our family who can make silver liquid?" Yang Heng thought for a while. He still wanted to ask the Butler, because the technicians in the family came through his hands, so the butler knew the best of what skills these technicians in the family had.

"Turn silver into silver liquid. There is really no such person. Alang, what do you want to make? Maybe I can give you a reference?" The butler said after pondering for a moment.

"Oh, this, I want to plate a thin layer of silver liquid on the glass. It seems that my wish cannot be realized. Let me find another way, right?" Yang Heng was a little disappointed.

"Alang, you want to coat a layer of silver on the surface of the glass, right? Then, do I really know someone?" "Oh, butler, what is he doing? Where is he now?" Yang Heng was a little anxious.

"He is also a jewelry craftsman, but unfortunately, he is a fake craftsman. He will plate a layer of silver or gold on the surface of the jewelry made of copper and then sell it as real gold and silver jewelry. However, he made people who are interested find it, and I happened to meet him. I saved him. Now, he is in our mountains and is an ordinary jewelry craftsman. However, his craftsmanship in making jewelry is really not very good. He can only make some low-end products, but he is very happy to do things here." It turns out that he has such a capable person under his command. It is good to make fake, and it is him. And now he has no tasks yet, and no one even values ​​him.

"Butler, what is his name?" "Let me think about it, it seems that his name is Jia Zuo. I remember him because of his strange name." Well, just by this name, I also know that you are a fake.

"Alang, I'll call him here." "No need, I'll go find him myself. Are there any idle houses in the mountains?" "Yes, yes, right next to the glass research room. At that time, Langjun, you wanted to build a few more rooms. This is more, but it's useless." At this time, Yang Heng also remembered that he asked to build more houses at the beginning, and this house was really built to study glass mirrors. But because the colorless glass was not made, the house was always idle. Even after the colorless glass came out, Yang Heng forgot about the mirror.

"Then, butler, you can do it, I'll go to the mountains by myself."

…………

Yang Heng really felt very lucky. Jia Zuo was really capable. He even used chemical methods to plating silver. In addition, the first time he asked him to plating silver on glass, he could plating the glass with spots. In this way, it was no longer far from success.

"Alang, I didn't expect that silver plating on this glass is so difficult. It's quite simple to plating on copper. Don't worry, I will improve the formula immediately and it will probably be plated soon." Jia Zuo said with some anxiety.

He was actually quite grateful to the housekeeper. If he hadn't saved him, he would have died in prison now. But now, he lives in this place safely. Although his wages are not very high, it is enough for him to eat. Moreover, it is said that as long as he saves enough money, he can marry a beautiful woman as his wife. I didn't see many technicians around him marrying wives, and some even marry two at a time. I'm so envious, but it's much better than the one he's running around before.

"Haha, it's okay, don't hurry, take your time, if you really succeed, I will give you a position as a mentor." He is not even worse than those Taoist priests, and Yang Heng naturally would not let him go.

"Alang, what you said is true. I am so happy. Thank you, Alang, thank you, Alang, I will definitely work hard and strive to complete the task within these few days."

Mentor, such a respectable position. And as a mentor, he could marry two palace maids. What is this palace maid? They are all beautiful women. Jia Zuo was excited and didn't even bother to talk to Yang Heng, so he went straight to the laboratory.

"This guy is so anxious. Jia Zuo, don't worry. Let me tell you what the specific effect of this thing is." "Okay, Alang, you said." Jia Zuo was a little reluctant. No matter what he said, wasn't it just Duyin?

"Let me tell you, Jia Zuo, this is a big project for me to make money. This thing has very high requirements. The glass is silver plated. On the other side, it should be seen that it is quite flat. When people shine on it, it is like looking at a real person. Can you do it?" Yang Heng didn't want him to burn the glass so much that it was bumpy. If this is the case, how can you use it to suit people and how can you make money?

"Let me think about it, Alang, you are going to make a mirror, right? Glass mirror, not to mention, this thing is really good. If it is flat, it will be much clearer than a bronze mirror. Okay, I took this job, don't worry, Alang, within half a month, I will take out a finished product for you, and I will definitely see that the people inside are exactly the same as the real person." Jia Zuo said confidently.

"Well, I believe you, but you must keep this formula confidential. This is a big money project, and you can't leak this formula."

"Don't worry, Alang, I know that everything in the mountain is kept secret, and I will only hand over my recipe to you, and I will never steal it."

It seems that after a long period of time, Jia Zuo naturally knew that everything in the mountain was kept secret. Unless it was a secret handed over by Yang Heng himself, no one would steal any recipe, because the guards in the mountain were too tight, and maybe others didn't know it, but as a fake person, he had to be vigilant at all times, so he could tell some things at a glance.
Chapter completed!