A eunuch came to report, saying that Deng Yuhan, a professor of Xiyi hired by the Academy of Sciences, asked to see him.

What did the people of Xiyi do when they saw themselves? Zhu Youzhen was a little surprised, thought about it, and asked people to announce him in.

"Your Majesty the Emperor, Weichen Deng Yuhan is polite." Deng Yuhan spoke a slightly stiff Chinese, and saluted Zhu Youzhen in a similar manner, he is a Swiss from Europa, Deng Yuhan obtained his Han name after coming to the Ming Dynasty, and now he works in the Royal Academy of Sciences, and he is also a Ming official.

Zhu Youzhen smiled and said, "No courtesy." ”

These Xiyi people, in order to "preach" thousands of miles to come to Daming, each of them is very knowledgeable, all of them are idealistic, for them, Zhu Youzhen still has some admiration.

"Your Majesty the Emperor, Wechen has a friend who came to Daming by boat from Obaro and brought a treasure to Wechen, which is specially dedicated to Your Majesty."

Deng Yuhan held a long narrow wooden box in both hands and held it high above his head.

Wang Chengen took the wooden box from Deng Yuhan's hand, put it on the table in front of Zhu Youzhen, and opened it gently.

This is a telescope with a brass case, and it is beautifully made!

Zhu Youzhen suddenly remembered, in the last life, there was a Xiyi missionary who also gave him a telescope, at that time he was full of state affairs, and after playing with it a little, he threw it away casually, I don't know if the Yi person is this Deng Yuhan?

At that time, Zhu Youzhen only regarded the telescope as a fun thing, but now Zhu Youzhen knows that this telescope is very useful, especially for navigation and military purposes.

"Your Majesty the Emperor, this is called a telescope, which can magnify things in the distance." Deng Yuhan introduced that Zhu Youzhen had already picked up the telescope skillfully and looked out of the hall, and the palace wall in the distance, the walking palace maids clearly appeared in the bottom of his eyes.

"Let's go, follow me to the coal mountain." Zhu Youzhen said with great interest.

In the Forbidden City, the coal mountain is the highest, and standing on the coal mountain, you can overlook the entire palace.

Zhu Youzhen held up the binoculars and watched with interest. The towering Taihe Palace, the beautiful and exquisite back garden, well, that is the Qianqing Palace where I live, and the Kunning Palace where the queen lives.

Hey, what are the little palace maids and eunuchs doing sneaking behind the rockery? Zhu Youzhen looked at it with great interest for a while, and then looked at the other palaces.

The situation in the palace appeared in front of his eyes without reservation, which was really a sharp weapon for voyeurism.

The telescope zoomed in closer, and it was the north gate tower of the Forbidden City.

The telescope turned around at will, watching the scenery on the coal mountain, a crooked-necked tree suddenly appeared in front of me, and the branches sticking out horizontally looked so familiar!

After playing for a long time, Zhu Youzhen handed the telescope to Wang Chengen and put it away, and looked at Deng Yuhan.

"You brought me such a treasure, but what do you need me to reward you?"

Deng Yuhan let out a long sigh and finally waited for the emperor's words.

"Your Majesty, Wechen would like to ask Your Majesty's permission to build a Catholic church in Beijing." Deng Yuhan asked expectantly.

"Isn't there two churches in the south and east of Beijing, why should they be built again?" Zhu Youzhen said lightly.

"Most of us priests now serve in the Royal Academy of Sciences, which is located northwest of the city, too far from the two churches to worship." Deng Yuhan explained.

The actual reason is that they have developed more and more believers, and there are already nearly 1,000 people in the entire city of Beijing, and two churches are simply not enough.

Zhu Youzhen didn't agree directly, but suddenly asked: "You have been in the Academy of Sciences for a while, and I heard Xu Ge Lao say that you are proficient in Xiyi equipment, what useful things can you invent?" ”

For the Royal Academy of Sciences, Zhu Youzhen has great hopes.

The soul has traveled for four hundred years, and he knows that the Chinese civilization has begun to decline, but the Xiyi kingdoms are brewing industrial changes, and will soon surpass the East and control the world through strong ships and cannons.

If the Ming Dynasty wants to surpass the West, it must pay attention to the fact that Confucianism does not look down on "strange and obscene skills" at all, and catches up with or even surpasses the Western Yi in terms of technology.

Therefore, when Zhu Youjian Academy of Sciences was established, he told Xu Guangqi to attach importance to engineering and make more useful inventions and creations. Among the Xiyi missionaries serving in the Royal Academy of Sciences, Deng Yuhan was proficient in Xiyi machinery, and was co-editing the book "Illustrated Descriptions of Strange Artifacts in the Far West" with Wang Zheng, of course, mainly his works, and Wang Zheng was responsible for translating them into Chinese.

After listening to Zhu Youzhen's question, Deng Yuhan hurriedly said: "Yes, I have newly invented the water scoop and water mill, which can use water power to hull wheat and grind it. ”

"Oh." Zhu Youzhen was a little disappointed. In Daming, there have long been equipment such as waterwheels, which is not unusual at all.

"My water mill is completely different from the water mill, it can be operated without using a few workers, and it can grind thousands of catties of flour every day." Seeing Zhu Youzhen's expression, Deng Yuhan hurriedly added.

"Hmm." Zhu Youzhen became a little interested, "Let's go, let's see." ”

Deng Yuhan's water mill and water mill were not placed in the Jishuitan Academy of Sciences, but placed on the Yongding River outside the city.

Zhu Youzhen went out of the palace in a micro-suit, and under the protection of a team of Praetorian Guards, he came to the Yongding River in a carriage.

There is a house of more than ten acres by the river, with walls on three sides, which is where Deng Yuhan's experiment is. On the riverside of the house, there is a complex wooden machine, which is the water mill and water bowl designed by Deng Yuhan.

Deng Yuhan's design of the water mill and the water scoop is really different, it is not the kind of vertical water wheel, but the water drain in the lying position, and the crankshaft connecting rod is used to drive the water power out, and the wooden hammer is driven to peel the wheat.

The round stone is placed on a stone pillar, and there are more than a dozen holes around the stone stone, each hole is tied with a rope, and several horizontal wooden poles are connected to the top of the rope, and the wooden poles are connected to the complex mechanical mechanism, according to Deng Yuhan, this is a crane.

On the outside of the stone raft, there is also a huge bellow, which is also connected by a crankshaft linkage mechanism and a waterwheel.

On the lower side of the stone rake, there is a smooth wooden trough, one end is slightly higher below the stone rake, and the other end extends to the huge stone mill next to it.

Deng Yuhan personally carried a bag of unhulled wheat, stood on the stone steps and poured into the stone spoon, driven by the waterwheel and began to lick the wooden sticks non-stop, about a quarter of an hour later, Deng Yuhan moved the engine to expand, the wooden sticks stopped licking the wheat, the crane began to work, the stone spoon was lifted high, and then one end was tilted, the good wheat was poured down with the shell, the wind bag began to work under the drive of the water drain, the strong wind blew, the wheat husk was blown away, only the clean wheat grains fell in the wooden trough, and slid along the inclined wooden trough to the stone mill, and the stone mill began to rotate under the hydraulic drive, Start grinding the dough.

Deng Yuhan explained that such a mill only needs two or three workers to operate, and can grind thousands of catties of flour every day, and the whole process is completely driven by water power, and workers do not need to spend much physical strength.

"If there are dozens of such stone mills, they can grind more than 100,000 catties of noodles every day, which is enough to supply most of Beijing City." Zhu Youzhen couldn't help but say.

"Yes, Your Majesty the Emperor, you can build such a noodle grinding workshop, you should be able to make a lot of money." Deng Yuhan said, and then looked at Zhu Youzhen, meaning that I invented such a good thing for you, should you approve the construction of another Catholic church?

"Good." Zhu Youzhen smiled, "It doesn't matter if you make money or not, the main thing is that it is convenient for the people of Beijing." ”