open sea

Chapter 1093 The Mirror
When Chen Mu put a drawing showing the general structure of the microscope in his impression in front of Zhu Zaiyu, he heard Prince Zheng say it was a bit difficult.

The so-called, a little difficult, means that His Royal Highness has to do some calculations.

The big abacus is not good, Zhu Zaiyu's big abacus is to enter every nine into one, and specifically calculate the data related to the average rate of the twelve.

During this process, Chen Mu discovered a small shortcoming of Prince Zheng's son, who used himself to judge others.

Maybe smart people have this problem. When the emperor in the Forbidden City was still young, the emperor Zhang Juzheng was always angry. It was obvious that he knew something at a glance. You are already five years old, and you still can’t understand the sage books?

King Zheng's son also roughly meant the same thing. For example, "everyone knows that the world is round." In one sentence, most of the human beings on the earth will be expelled.

But when it comes to calculations, there are no difficulties in the whole process and design. In the end, the three of them always believed that the key to the success of the project was not in their hands...in the hands of the craftsman who grinds the lenses.

Who can do this?
Does Changsheng have an optician?
Is there anyone who can grind lenses to a higher precision than glasses?
It really does.

Changsheng Port Daojun Temple is diagonally across from No. 17 shop on Ersheng Street. The owner of Mingxinzhai Yufang crystal glasses and the master craftsman of Dongyang, Xu Luan.

The apprentice jeweler who came out of Nanjing was conscripted by the Xuanfu Arms Bureau by the imperial court. He replaced his master and went to Xuanfu to work as a stonemason and became a family craftsman. He never went back.

Over the years, he has processed a large number of Sulu pearls, Luzon gold, and lion country gemstones, and accumulated a good craftsmanship until he followed Chen Mu to Dadongyang and was ordered to open the NO.17 store.

At first, they bought jade from the aborigines. Later, when there were too many jade materials, they reprocessed them. For this reason, Chang Sheng also set up a jade factory on the outskirts of the city. Now there are hundreds of workers doing this; later, Chang Sheng fired glass, There is more income from making glasses.

He not only grinds glass eyes, but also grinds jade glasses. Not only does he grind glasses that can make myopia and presbyopia see clearly, he also grinds abnormal glasses. For example...Mingxinzhai sells glasses that can see four suns after wearing them .

But Xu Lu'an didn't know the principle that glass and jade can be seen clearly when polished into such a shape, but he knew it was useful, so he specially recruited [-] people with different levels of myopia, and let them try it on during the production. .

The production efficiency is not high. Even if he has a factory with hundreds of people, it is enough for him to sell and make a profit. After all, the best they sell is the jade flat mirror that can see the four suns.

After all, the glasses business is limited, how many talents are there in Changsheng myopia?A pair of glass glasses sold for three thousand tongbao, and even jade can only be sold for six or seven thousand. The real money is made of mostly useless jade decorations.

The aborigines have a tradition of carrying jade wares. In the past, only priests and leaders could own a lot of jade wares for decoration. Now jade wares are circulating in the market. Although they are smaller, the jade craftsmen in Ming Dynasty are more skilled. Even the aboriginal jade craftsmen who have been trained by them It can be polished, carved, and polished to produce extremely exquisite ornaments.

It may be a small jade pendant, a hosta, or even a jade necklace or bracelet. Even though most people only have one or two thousand Tongbao in a month, they can buy it back at a high price of six to seven thousand or even tens of thousands of Tongbao. A trinket.

Therefore, the business of NO.17 store has been very good. Even though the mass sale of jade has long since ended, he can still make the whole factory operate in an excellent financial environment by buying low and selling high, and making it carefully. The military government pays [-] to [-] million Tongbao in taxes.

But this is a kind of waste for Xu Luan, even though he is just a craftsman, he also hopes to accomplish a great event - to let future generations know that Xu Luan has come to this world for a major event.

He has been thinking about what he can do on this land, even though he opened the first jade shop in Asia for the Dongyang Military Mansion, accepted an order for [-] binoculars from the Changsheng Military Weapons Bureau of the Dongyang Military Mansion, and did very well. He carved his name on the brass rim of the wooden handle of the binoculars, but it wasn't the kind of big thing he wanted to do.

Until Chen Mu found him again.

"The commander-in-chief wants two convex mirrors and one concave mirror?"

This is too simple for Xu Lu'an, they have the raw materials for making mirrors, the materials for grinding, and most importantly, the molds for making lenses - their processes are far more advanced than ordinary people imagine.

"Yes, these three pieces are a set. Make several more sets, with different sizes and different curvatures. After you finish this, I will send someone to the lumber yard to make them make the shell." Chen Mu thinks this is a very difficult task. The task, asked: "If you hurry up, can you finish it in ten days? This is very important."

He has already planned to make props, get some oranges, let it grow hair, and use the clearest lens to make a microscope, and let Zhu Zaiyu and Chen Shigong summarize the law of lens clarity with Xu Luan here, so that craftsmen can grind better lens.

Unexpectedly, Xu Luan was stunned by his words: "Ten days?"

"Concave mirrors can be prototyped today, and the follow-up twelve types will take about ten days, but convex mirrors need to be molded now, and they can't be finished until tomorrow." Xu Lu'an said that he had given instructions to the craftsmen, and then said to Chen Mu: "Daddy Shuai, why don't you go with the villain to see how to make lenses."

Chen Mu nodded, took out his pocket watch to check the time, and nodded in response.

Chen Shigong still doesn't understand what is the use of Chen Mu to do these things. He has a magnifying glass with him, which can clearly see the blood vessels and muscle texture during dissection, but it is impossible to achieve what Chen Mu said— —to see what the enemies he fought with looked like.

It is worth mentioning that the magnifying glass is not an imported product. It was called "Huo Qi" in the Han Dynasty and possibly earlier times, and was first used to make fire.

The road from NO.17 Mingxinzhai to the Jade Factory is not far away. There are many factories in the outskirts of the city. It is just in time for the delivery of goods in the evening. The road along the way is full of trailers driving Spanish donkeys. The drivers are all dressed in various clothes. Jinghai suits and short robes of different colors were yelling, and the cart was loaded with all kinds of goods that Chang Sheng often used.

Most of them are wood, charcoal and coal, arrow shafts, arrow clusters, hemp rope, sacks, and daily necessities such as iron pots and iron pots.

On the way, Xu Luan introduced to three people who were separated from the daily life of the common people that Changsheng will hold a big fair in two days, and merchants are busy preparing goods for it.

From a distance, they could see the white smoke coming from the big chimney of the jade factory.

Mingxinzhai's factory building is very quiet. Although dozens of craftsmen have gathered, everyone is doing what they are doing. Most of the people are quietly digging jade, except for the sound of grinding iron wheels. any movement.

In the glass kiln, however, two supervisors were scolded by Xu Lu'an for chatting in the factory.

They waited for about a moment, and a craftsman wearing thick gloves walked out of the kiln with an iron rod. The other side of the iron rod was wrapped with a piece of red-hot glass, which softened and wanted to drip down.

Xu Lu'an wiped the sweat from his forehead due to the high temperature of the factory, and said to Chen Mu: "Commander, it's started."

　Good morning!

　　In Han Tomb No. [-] Ganquan, Hanjiang, Jiangsu Province, the Tomb of Liu Jing, King of Guangling, unearthed a gold ring embedded with a crystal stone magnifying glass, with a magnification of four or five times, and it is very exquisitely made.

　　
　
(End of this chapter)