"Glass mirror?! Who made this? Zhu Youxiao said in surprise. Zhu Youxiao didn't know that glass mirrors had actually appeared in the 16th century.

"The craftsmen sent by the Dutch, and the minister asked them to make all the products they knew, and this glass mirror was one of them, using the tin amalgam method." Wang Zheng replied.

"Can you make a large glass mirror?" Zhu Youxiao asked.

"Not yet." Wang Zheng said.

"If someone can make it, I will buy his technology for 1,000 taels, or he can only be responsible for production, and I will pay for the sales, and I will make 7 or 3 of the profits." Zhu Youxiao said.

"No, the minister will inform these craftsmen." Although Wang Zheng was curious about why Zhu Youxiao wanted to do business so much, he still didn't ask.

"Make glasses out of glass, you know?" Zhu Youxiao asked.

"You know, these artisans have made some too." Wang Zheng said.

"I need a glass workshop to make a microscope." Zhu Youxiao said.

"Microscope?" Wang Zheng said suspiciously.

"This mirror can see small things that we can't see with our eyes, similar to the principle of a magnifying glass." Zhu Youxiao explained.

"Microscope, it's the first time I've heard of it, wait for the minister to ask if there are any craftsmen who are proficient in this way?" Wang Zheng knew about the magnifying glass, after all, the magnifying glass had appeared for hundreds of years, but it was really the first time he had heard of the microscope.

"The most important thing in the microscope is the grinding of the lens, which can be magnified hundreds of times to the extreme." Zhu Youxiao explained. Zhu Youxiao knew that in a few decades, a businessman named Leeuwenhoek in the Netherlands would occasionally grind a single lens that could magnify 720 times.

"Your Majesty......" At this time, a little eunuch who was following Zhu Youxiao bowed down and said.

"What?" Zhu Youxiao asked.

"Your Majesty, where does the little one know anyone who is proficient in grinding lenses?" The little eunuch bowed down and said.

"Who? Where are people now? Zhu Youxiao asked happily.

"There is a person in Suzhou, named Sun Yunqiu, who is proficient in grinding lenses and is quite famous in Suzhou." The little eunuch replied.

"Pass the decree and summon Sun Yunqiu to enter Beijing." Zhu Youxiao ordered.

Sure enough, Daming is full of talents, but most of them are buried. Sun Yunqiu, the word Wenyu, also the word Sibin, originally from Wujiang, he is really a genius in this regard, he invented the lens grinding machine - the car, but also mastered the optometry technology, according to the age of the person and different vision to develop presbyopia, myopia, farsightedness and other varieties and various luminosity of the lens, and compiled a set of "eye to mirror" of the original optometry method to test the eye.

Moreover, Sun Yunqiu invented and developed optical lenses for different purposes, but this person's reputation was not obvious to later generations, so he was forgotten by Zhu Youxiao.

"If it happens, I will have a great reward." Zhu You said to the little eunuch.

"Thank you, Your Majesty." The little eunuch said happily.

"I think it's too condescending to put you here, and I'm going to set up an Imperial Machinery Research Bureau and let you take the position of director." Zhu Youxiao said.

"The minister is afraid, and the minister is afraid that it will be difficult for him to take on this heavy responsibility." Wang Zheng said respectfully.

"Within the empire, you are the most suitable, so you don't have to be humble." Zhu Youxiao said with a smile.

"Thanksgiving!" Seeing that Zhu Youxiao had made up his mind, Wang Zheng was no longer modest.

"The Zhongxing Empire not only needs new science, but also technology." Zhu Youxiao said.

"The minister understands, but what is the new science?" Wang Zheng asked suspiciously.

Zhu Youxiao smiled and did not answer Wang Zheng.

……

After receiving the plaque of "Praise for Heavenly Learning" from Zhu Youxiao, the speed of Catholicism in China has obviously accelerated. Correspondingly, the number of recitals on the exclusion of Catholicism began to increase.

What Zhu Youxiao really needed was Western learning brought by Western missionaries, and according to the development trend of Catholicism in China, it is very likely that such a thing as the "Nanjing Teaching Case" will happen again. Zhu Youxiao decided to summon Long Huamin, president of the Chinese diocese, and his famous missionaries in China, and one other person, Li Zhizao.

"I have some Catholic recitals here, you can take a look." Zhu Youxiao sorted out all the recitals calling for the exclusion of Catholicism.

As soon as they saw these movements, Long Huamin and the others' faces changed greatly. Li Zhizao preemptively said: "Your Majesty, these pieces are all nonsense. ”

"Your Majesty, we will never have the heart to subvert the Ming Dynasty......," Long Huamin also hurriedly said.

"Long Huamin, I know that you are against worshipping Confucius and worshiping ancestors, and even strictly forbidding disciples to worship Chinese ceremonies, right?" Zhu Youxiao interrupted Long Huamin's words and said.

"This ......," Long Huamin didn't know how to answer for a while.

Zhu Youxiao didn't wait for Long Huamin to answer, he continued: "Matteo Ricci is actually doing a good job, I don't know why you suddenly became so radical? You Catholics also have an unshirkable responsibility for the Nanjing Lesson Plan. ”

"I'll know what I'm wrong." The crowd replied.

"The plaque I have given to the Catholic Church is not for you to act recklessly in the Empire, I only need a single word to wipe out the Catholicism in the Empire overnight." Zhu Youxiao said coldly.

Zhu Youxiao's words made everyone silent, and everyone didn't dare to speak.

"I have three requirements for Catholicism: first, the appointment of the president of the Imperial diocese must be approved by me before I can be regarded as the president of the Imperial diocese, otherwise, I will not allow him to step into the territory of the Empire; second, the idea of subverting imperial rule must not be propagated in any form; Third, there must be no interference in the politics of the empire. Do you understand? Zhu Youxiao asked.

"Your Majesty, but the position of president is now in my position." Long Huamin said.

"I know this matter, I don't care about the previous affairs, from your next term, the appointment must be approved by the Empire." Zhu Youxiao said.

"No." Long Huamin was the first to answer, and the others also replied. This makes people have to bow their heads under the eaves, if Long Huamin does not bow his head, Zhu Youxiao will expel Long Huamin immediately.

"I'm going to revise the calendar." Zhu Youxiao glanced at the people present, and then said, "And the Qin Heavenly Supervisor will also be transferred from the Ministry of Rites and will be directly managed by the cabinet." And Li Aiqing, I am ready for you to take up the post of Qintian Supervisor. John Tong, I am going to make you the deputy supervisor of the Qintian, responsible for correcting the calendar. ”

"The Lord's Order is grateful." Li Zhizao and Tang Ruowang said in unison. Originally, this group of missionaries thought that their missionaries in China would be restricted by Zhu Youxiao, but they did not expect Zhu Youxiao to turn around and seal Tang Ruowang an official position.

"Deng Yuhan, I am going to make you the deputy director of the Tai Medical College, as a teacher of medicine, and I also know that you have dissected corpses, and I can provide corpses for you to study." Zhu Youxiao said.

(End of chapter)