The small courtyard finally returned to peace. After listening to Xu Hui's words, Jiang Wei came back to his senses, this is a feudal society. An era when you could say the wrong thing and your whole family could go into exile.

Jiang Wei felt that he needed to pay attention to it, and at the same time he had some thoughts in his heart.

"Brother, Ruoniang still wants to hear the story. Did Monkey King escape from Marble Mountains? ”

Jiang Wei touched Ruoniang's little head,

"Brother is tired, can you let my brother take a break? I'll tell Ruoniang another day, go to Xu Lu and Xu Hui to play, my brother has some things to deal with. ”

"Oh!"

After sending Ruoniang away, I watched her trot out, and then called a domestic servant.

"What do you command?"

Jiang Wei looked at the man in front of him, about thirty years old, thin but quite energetic.

"I have something here that I need your help with."

The man hurriedly waved his hand, looking a little panicked,

"Childe, if you have something, you just tell it."

Jiang Wei saw his humble appearance, so he had to sigh, after all, in this feudal society. As a small citizen, he never thought of changing the world, changing the world, and letting Datang dominate the world or something, which is unrealistic, after all, he was just an ordinary college student before he crossed over, and he only wanted to be able to freely develop what he was interested in, which was also related to his profession and hobbies.

In an era where the foundation of science and technology is almost zero, creating from scratch makes Jiang Wei feel very interesting. This includes shooting a movie with a camera and then making a projector.

This idea came out of order to make Ruoniang happy, and calling this domestic servant, it was to prepare for this, Jiang Wei took out all the receipts of yesterday's dividends, a full 1,600 yuan, and took out 1,000 yuan. That is, it is always handed to the domestic servant.

"I need to get more sand, and buy about 30 catties of limestone, and then go to the pharmacy to buy all the miscanthus salt."

As for coal, the Tang Dynasty had not yet popularized coal, and he probably didn't understand what coal was, so he planned to find it himself.

The servant took the money and looked embarrassed.

"Childe, I'm afraid that I won't be able to do it well and delay your business."

"As long as the matter is done, I will give you a hundred wen as a reward."

The servant's eyes lit up when he heard this, and he immediately patted his chest and promised,

"Childe, please rest assured, the old servant will definitely help you do it."

Watching the servant leave, Jiang Wei shook his head, called another servant, and found a craftsman to find an open place in the courtyard and build a stone blast furnace.

If you want to make a movie, you first need a must, that is, glass, as the best chemical container, glass can be said to be a very familiar item for chemistry lovers, and there are many ways to make glass, the simplest of which is to make glass from sodium carbonate and sand.

Sodium carbonate is a chemical substance that can be produced in a traditional Chinese medicine in China, that is, miscanthus salt. The main ingredient of miscanthus is sodium sulfate. If you want to obtain sodium carbonate, it is extracted by the miscanthus brine method.

First of all, it is to use miscanthus nitrate plus limestone and coal to reduce carbonation at high temperature to obtain a crude product containing Na2CO3 - black ash, first leaching, then evaporation, cooling crystallization, and then taking out the crystals and drying at low temperature by the fire, you can obtain heavy soda ash with a purity of about 97%. These procedures are very simple and not difficult. And as long as you get soda ash, you can say that you get glass.

And with the glass, then it is easy for Jiang Wei to make a camera, even if it is a few pieces of wood, he can make a camera and a projector, of course, the original projector and camera. As long as you know the principle, any junior high school student can make something simple.

The hardest part is the film.

It's a very complex thing that contains a lot of chemicals, such as phenol and carbon tetrachloride, which are used to make film. Another example is some photosensitive materials. These are not made in a single step, like soda ash, which involves several steps and requires several chemicals.

But as long as he takes it one step at a time, Jiang Wei feels that he will not fail. Of course, it is not something that can be achieved in a short time. Now, he just fantasizes about how Ruoniang will be surprised and happy when she sees her first movie.

The next day, the limestone and miscanthus were bought, and the sand was missing.

At this time, Wei Zheng also acted, he first found the county order, and then Yamen Xiaoshi found the villagers of Yunling Village who set up stalls one by one. Fortunately, Wei Zheng emphasized that he should not disturb the people, but only ask questions. As for the chilled mung bean soup, he said that he would never eat anything from an unknown source.

And Wei Zheng himself personally led the team to Yunling Village, and when he came to the thatched hut where people went to the empty building, he couldn't help but look up at the sky, and held back a sentence for a long time without saying it.

After the last inquiry, I learned that the person is now living in Xu Mansion.

Until just after noon, Wei Zheng had already come to Xu's mansion, but the weather was too hot, so he couldn't help but buy a bowl of chilled mung bean soup, hmm......

At that time, Wei Zheng did not have any expression.

It's just that his heart is a little shaken, but when he thinks of the danger, he strengthens his conviction again. At the same time, he was very resistant to the matter of His Majesty Li Er's seeking Taoist alchemy. It's just that the Taoist priest hasn't entered the palace yet, so he can't say anything.

"Knock!"

After a while, a servant opened the door, and when he saw Wei Zheng standing at the door with a straight face, the servant said that he didn't feel any pressure at all, after all, he didn't know him. But the other party seems to be menacing, and with two soapy clothes, he is not easy to slacken.

"My family Ah Lang is not here, may I ask if there is anything important for your guests? Still is? ”

There is only one male owner in Xu's house, and the others are family members.

"I'm here to find Jiang Wei."

The servant blinked, didn't think about it for a while, and a maid behind him couldn't help but remind,

"It's the white-haired boy who moved in yesterday, the nephew of the main mother."

The servant reacted immediately,

"Wait a minute, I'll report it."

As a servant, he is not qualified to bring outsiders into the door, so he naturally needs to report to the master's house.

When Jiang Hua heard that someone was looking for his nephew and brought Xiao Shi of the two county officials, he felt very strange and a little worried, so he ordered Jiang Wei to be informed, and followed the servant to the door.

At first sight, Jiang Hua recognized Wei Zheng, as the wife of a court official, the highest group of officials in the dynasty, although he didn't dare to say that he knew everything, he still knew some. And Wei Zheng is one of them.

"Gong Zheng came to the door, forgive the concubine for the crime of rudeness, and ask Zheng Qianmian to sit first."

"Not necessarily."

Wei Zheng's face does not change color diameter road,

"I came here to find Jiang Wei. The woman took me directly to Jiang Wei. ”

"This ......"

Jiang Hua was in trouble for a while, hesitating, it seemed that the other party was menacing, and he couldn't make up his mind. But thinking of the identity of the other party, he is just a general from the Ministry of Industry as a prisoner, and he can't afford to offend others at all.

But on the other side is his nephew, the only seedling of the Jiang family. After thinking about it, I finally raised my courage and asked,

"I hope Gong Zheng forgives me, Jiang Wei is the nephew of the concubine, and he doesn't go out on weekdays, I don't know what Gong Zheng wants?"

"I just have something I want to ask him face-to-face."

Jiang Hua gritted his teeth,

"In that case, please wait a while in the hall of Gong Zheng, and the concubine will go and call someone to come."