Daming: If I find a great-grandson, I will teach an emperor through the ages

Chapter 51 Sapphire is back

"In addition to this kind of screw, there is another kind of screw that requires a nut to match. I will give you the drawing tomorrow."

Yan Zhen was stunned, "Is there another kind of screw?"

Just this kind of screw is enough for him to be amazed, there are still more!

Cao Wei nodded. When he saw the craftsmen playing with various parts of the steam engine today, he thought it was too wasteful.

Only use the mortise and tenon structure to close the steam engine, if you want to disassemble it, you have to destroy the whole, there is no other way.

Cao Wei knew that there are screws on various modern instruments and instruments for assembly. No matter whether they are dismantled or assembled, they do not need to be destroyed, so he drew these screws that resemble nails.

However, this kind of screw can only be used for assembling wood now. Due to the backward industrial level, it is too difficult to leave threads on iron tools for this type of screw.

Cao Wei thought of this later, but another screw with a nut can solve this problem.

Screws can be molded, and nuts can also be used. Screws and nuts can be used on ironware.

However, it is not easy for the current technology to match the threads on the screw and the nut. Cao Wei can only come up with the method and let the craftsmen try it.

As long as there are correct research paths and methods, Cao Wei believes that Ming Dynasty will one day successfully create screws and nuts that can be used together...

After leaving the Ministry of Industry and the imperial city, Cao Wei rushed home.

However, on the way halfway, on the widest street in Yingtianfufang City, a group of soldiers and horses drove towards them.

Pedestrians on the road dodged one after another, trying to avoid it.

"Dong Guo Liang is back..."

Cao Wei heard the conversations of people on the side of the road, and knew the identity of the person coming from the opposite side.

Prince Liang Sapphire!
Last year, Emperor Zhu Yuanzhang of the Ming Dynasty issued an order to command Lan Yu to command the Lanzhou, Zhuanglang and other seven military guards to pursue Qi Zhesun. It happened that Yuelu Timur, the commander of Jianchang, rebelled, and Lan Yu cooperated with the capital to command Qu Neng to quell the rebellion. He was training troops abroad and has only returned to Yingtian today.

Lan Yu, the top nobleman of Ming Dynasty, was not accessible to Cao Wei before, and he hadn't even seen it much. He had only heard of the fierce reputation of Duke Liang.

"DaDaDa..."

Accompanied by the noisy sound of horseshoes, the troop of soldiers and horses approached slowly, and Cao Wei saw a burly man riding a tall horse in the front.

The face is dark due to the constant invasion of wind and sand, a pair of ox eyes are piercing, the thick eyebrows add a bit of wildness, the lips are tightly pursed, and there is a scar under the jaw, which looks fierce!

Although he is 60 years old, there is no serious sign of aging on him. Lan Yu looks like a piece of steel that has been tempered for thousands of years, making people feel an invisible sense of oppression just looking at him!
Wherever Lan Yu led the army, the people on the road all stood with their heads down, not daring to raise their heads to look. In their eyes, Lan Yu was a complete god of plague, and they must not be offended!
Cao Wei was the only one standing by the side of the road watching Lan Yu and the soldiers and horses behind him like a stunned young man who didn't understand anything.

Cao Wei, who stood out from the crowd, quickly attracted Lan Yu's attention.

He turned his head and looked aside, frowning slightly when he saw that Cao Wei was not afraid at all.

This man is so bold!

However, Lan Yu still noticed the cyan robe on Cao Wei's body. Although he had never seen this color before, judging by the patterns on his waist and cuffs, it was indeed a court uniform.

It seems that during the time when I left Yingtian, some unusual things happened...

Thinking in her heart, Lan Yu glanced at Cao Wei lightly, then turned her head and continued walking forward.

It wasn't until the soldiers and horses had completely passed that the people on the street resumed their free movement.

Cao Wei continued to rush home. In his understanding, Lan Yu and himself had no intersection.

However, Lan Yu came to find her the next day!

[Countdown to return: 320 days, 15 hours, 28 minutes and 17 seconds]

Cao Wei had just arrived at the craftsman's office of the Ministry of Industry. He asked someone for pen and paper to draw the matching screws and nuts, and asked Yan Zhenzhi to find someone to do it.

However, since the key parts of the nut were on the inside, it was naturally more difficult to draw. Cao Weikong sat for an hour before he got a little better.

At this moment, the sound of commotion suddenly came from a distance.

The sound became louder and louder, accompanied by some shouting. Cao Wei put down his pen, stood up and followed the direction of the sound.

Watching the excitement is also one of Cao Wei's hobbies.

After passing through two corridor doors, Cao Wei saw a group of people gathered together, approached the crowd, and saw a burly figure in the middle of the crowd.

Sapphire!

"You blind people, don't stop me! I heard that you have developed a Kongming lantern that can take people to the sky. Today I want to see it with my own eyes!"

Lan Yu walked in carelessly, and several ministers of the Ministry of Industry and Yuanwai Lang wanted to stop him, but how could he stop Duke Liang?

"General, general, that Kong Ming Lantern is an important thing and cannot be lost. We dare not make any arbitrary decisions. General, please wait until our Lord Shangshu comes back."

With a wave of his big hand like a sapphire futon, several servants and Yuanwai Lang swayed like willow leaves, staggering to and fro.

"What I'm waiting for him to do is just take a look at your things. It's not broken. Don't take your mother-in-law's things!"

Cao Wei looked at all this and thought that this sapphire is really domineering and unreasonable!
But since Lan Yu has gone to court, why hasn't Yan Zhenzhi come back?

The reason why Yan Zhenzhi has not returned is that Zhu Yuanzhang once told him that after Cao Wei entered the Ministry of Industry, if he developed something, he had to report to Zhu Yuanzhang himself.

After the court today, Yan Zhenzhi went to the Imperial Study Room and told Zhu Yuanzhang exactly what happened yesterday when Cao Wei designed the screws.

"This screw is very important?" Zhu Yuanzhang squinted his eyes and sat down on the dragon chair with his fingertips.

"Your Majesty, screws can almost completely replace nails. They are more time-saving, less labor-intensive, and less prone to errors."

"Hmm..." Zhu Yuanzhang nodded slightly, thinking about the meaning of the screw, and after a while...

"Let's write him down..."

After Yan Zhenzhi finished his report, he left the imperial study and rushed to the Ministry of Industry. Before he entered the door, he heard noises in the wall.

Listening to the rough voice, Yan Zhenzhi immediately thought of who was making trouble inside.

He quickened his pace and hurried into the gate of the Ministry of Industry, seeing several of his subordinates struggling to stop Lan Yu.

"Duke Liang!" Yan Zhen shouted.

Lan Yu turned around and looked at him, and said, "You can be regarded as coming back, hurry up, take out that laborious Kongming lantern from your Ministry of Industry, and have a look, I'm so itchy!"

Yan Zhenzhi is a third-rank minister, so Lan Yu can't be a little more polite like he treated those servants and servants.

Looking at Lan Yu who refused to give up until he achieved his goal, Yan Zhen knew that it would be difficult to invite this great god away if he did not let Lan Yu get his wish.

In desperation, Yan Zhenzhi could only order someone to take out the Kongming Lantern.

(End of this chapter)