When Yu Zhigan found Cheng Chumo, this guy was outside the city and was preparing to experiment with his latest aircraft. The last time he failed, it was only a few days since this guy was unstable again!

However, if this kind of flying test is not handled properly, it may cause death. Although Yu Zhigan is not the Virgin, he cannot let Cheng Chumo do whatever he wants.

However, when Yu Zhigan saw the aircraft in front of Cheng Chumo, he was stunned. If it weren't for the people around him who were wearing ancient costumes and a group of people calling him the Prince of the Prince, Yu Zhigan would have doubted whether he had traveled back in time.

"Your Highness the Crown Prince!"

When Cheng Chumo saw Yu Zhigan coming, he had a smile on his face and wanted to take credit. At the same time, his eyes kept looking back. After confirming that he had not seen his sister, he breathed a sigh of relief.

"What are you looking at?"

"I thought my sister was here. When I was doing the experiment, my sister found out, but she chased me and beat me. I was found out again last time. I heard that she was looking for me!"

"Don't worry, your sister was coaxed by me and didn't come over. It's good that you have this heart to explore science!" Yu Zhigan praised Cheng Chumo. The most important thing in doing scientific research is to have a heart to explore. It is obvious that Cheng Chumo has this heart.

However, Mr. Yu Zhigan felt a little sorry for this guy. He was a famous minister or general in the future. As a result, he came to him. I wonder what he would become? A science madman? One of the founders of modern science? It seems to be good!

"Thank you, Your Highness, this is an aircraft developed by Li Bai and others. What do you think?"

Yu Zhigan glanced at the aircraft in front of him. How to say it is very similar to a modern glider, but the materials are much more bulky than modern ones.

Yu Zhigan walked to the machine, looked at the aircraft in front of him carefully, and nodded slowly: "It looks good, how did you think of it?"

"Drag your highness's blessing. I thought that if a person flies, he needs to have wings like a bird, but we don't have wings, so I made one!"

"Then I asked someone to jump from high to low on my back. The man was too panicked and dared not shake his wings, so he fell down. Later, after I jumped from high places myself, I found that even if I waved hard, I couldn't fly, but it slowed down a little, so I......"

Cheng Chumo excitedly introduced his wisdom, and Yu Zhigan also understood that this guy's inspiration came from the last time he fell down from the upper floor.

Yes, that's right, Cheng Chumo fell down from the building on the day the school started in Tsinghua University. I have to say that there is a certain number in the dark!

"Then what?"

"Then I realized a bigger one, running down the slope, and I felt my feet off the ground, but I still didn't fly up. I thought it might be because my material was too heavy, so I improved it again!"

When he said this, a glimmer burst into Cheng Chumo's eyes: "Your Highness, after I used the new materials, I flew for a distance. Although it was very short, it can prove that what Your Highness said was correct and people could fly!"

After saying that, he pointed to the equipment behind him: "Later I improved it again, it's like this, but I'm going to continue to change it. Your Highness, your bicycle is good. If you can add it, even if you add a power-assist system, the faster you run, the fly will be able to fly!"

Yu Zhigan nodded. Cheng Chumo's general direction was not wrong, but he was a little curious: "Why did you think of pressing on the bike?"

"I saw some birds, and when they flew, they needed to run a little. I thought, birds needed to run a little, so do people also need it? That's why..."

Yu Zhigan listened to Cheng Chumo's talk, nodded slowly and said two words, not bad! It's really good. This guy definitely has the potential to be a scientist, the scientist's spirit of exploration, and careful observation. He has everything. It seems that he is not really happy in history!

"Do your Highness think it's good too? Your Highness, do you think my experiment will be successful?"

Yu Zhigan looked at this guy, succeeded? Where to go, don’t this guy know how to choose a place with slopes? There is a long official road in front of the north gate. Even if the wind is still quite strong today, there will be ghosts if you can fly!

“Where are there long slopes around?”

When Cheng Chumo heard Yu Zhigan's inquiry, he was stunned: "Yes, there is a location called Shilipo, and there is a hillside, about hundreds of meters!"

"Go over there and try it!"

"Here!"

Several people like servants dragged Cheng Chumo's glider and a kind of follower toward Shilipo. Yu Zhigan thought curiously, that place called Shilipo, I wonder if there was a person, known as Shilipo Sword God!

"Your Highness is here!"

Shilispo, ten miles north of the city, from here, the terrain suddenly lowered, and a few miles ahead was a branch of the Wei River. I don’t know what the name Yu Zhigan is, and no one has paid attention to it.

"Yeah, the place is good!"

Today is God's face. The light wind, which was originally only level 3 or 4, roughly level 5 or 6 after reaching Shilipo, was still a little cold in early spring. In addition, the wind blew, people couldn't help but shivered.

There were many people watching, some were brought by Cheng Chumo, some were the noble children in Chang'an City who had nothing to do after eating and had nothing to do, and they also joined in the fun, and some were passing by, but they were all watching and did not dare to get too close.

The biggest one is Yu Zhigan's escort. Now Yu Zhigan is the governor. Although he is still the prince, his status has changed drastically. Therefore, Yu Zhigan is traveling now, and there are more than 200 people on the surface, but I don't know how many of them are in secret. Yu Zhigan turns his head and looks into the forest in the distance, and there are a lot of people vaguely.

"It's a good place, who did you let the test fly?"

Although Yu Zhigan was not optimistic about this flight plan, he still insisted on letting Cheng Chumo try it. Failure is not scary. What is scary is that he dare not try it. What if Cheng Chumo succeeds?

Cheng Chumo asked someone to push the glider out, then pointed to a very thin guy beside him: "His name is Zhang San. I bought it from Dongshi Yaxing. I am thin, but I have some strength!

Yu Zhigan looked at it and nodded. He really needed a thin person. Zhang San was a little nervous when he saw Yu Zhigan. His master's status was so high that he was scary, but he spoke respectfully in front of this young man.

No one told Zhang San how old the official was, but Zhang San was a little scared when he saw Yu Zhigan.

"Get ready!"

After Yu Zhigan finished speaking, he waved his hand and immediately a guard brought his little stool. Yu Zhigan sat down casually. Since Yu Zhigan came out of this little stool, it has been very popular now and is almost selling crazy in Chang'an City.

In the past, when we went out, we met each other and chatted together. When we were tired of standing, the rich people found a tea shop and had a good time to chat. If we had no money, we found a corner to sit down and continue chatting. But now it’s different. We hold a small stool with us and meet an acquaintance, and we can find a corner to sit down and chat.

Not only do you have to spend money to go to some teahouses, but you don’t have to be looked down upon. In addition, when encountering any excitement, the front row sits on the stool and the people behind you stand, so you don’t have to be too crowded.

In addition, when queuing, you can also hold a random stool, so you don’t have to worry about back pain due to the long queue. What other elderly people used to come out to bask in the sun and sit on the big rock at the door of their home.

It can be said that the release of the small stool was like mahjong, and it became popular in Chang'an City in an instant. Yu Zhigan also made a small profit, but the imitation products soon came out, not only the small stools, but folding tables and other similar designs came out.

Back to the point, after Yu Zhigan sat down with a small stool, he immediately sent a small tea set and a small stove to boil water for Yu Zhigan to prepare tea. Cheng Chumo kept checking his equipment and constantly talking to Zhang San about precautions.

"That Shimo, if you fly up, how can you land?"

Hearing Yu Zhigan's words, Cheng Chumo stood there in a daze, looking at his machine, and then looked at Yu Zhigan: "Your Highness, I really haven't considered this yet!"

Yu Zhi gave this guy a blank look, only thinking about flying, not landing. After all, compared to landing, being able to achieve flying is the supreme glory.

"Forget it, it's okay, just fly, as for landing!"

Yu Zhigan shook his head. Scientific research must be sacrificial. Zhang San sold Cheng Chumo's life to Cheng Chumo's house. Yu Zhigan never thought of overthrowing this system. After all, he was the beneficiary and he was not the Holy Mother. If the death of a person brought technological progress to the Yu Tang Empire, Yu Zhigan would be very willing. It would be better than saying that he was self-confidence and stopped moving forward, and was invaded by others many years later and was massacred by the enemy.

"Get ready!"

"Here!"

Although Cheng Chumo's glider did not add a bicycle to the car, it also added a small wheel. This would save more effort when pushing. Yu Zhigan would never have taught the process to deal with it like this. He just did something himself, so he probably saw it by Cheng Chumo.

"Your Highness, you're ready!"

The guy named Zhang San got into the glider, and it was a simple handrail made of hollow bamboo. He could push the glider forward with force. Yu Zhigan looked at the bumpy ground and shook his head: "Fix the ground a little smoother!"

After hearing this, Cheng Chumo nodded, and immediately someone took the tools to start to trim the land.

"The next time you build a cement road, you must first sharpen your tools if you want to do it well. If you don't even have a complete runway, how can you successfully test it!"

“What is the runway?”

Cheng Chumo touched his head and thought for a while, but he didn't expect what Yu Zhi was doing the so-called runway. Yu Zhi smiled dryly: "It's a flat road. I told you that the smoother the road is, the more convenient it is to walk. The more convenient it is to roll the wheels, understand!"

"I understand! It's like walking on the official road very fast, but walking on the country road or mountain road is very slow!"

"That's about that, but it's too late now. Let's take a look at the results of your experiment this time!"

A group of people were busy working together a dirt road that was about tens of meters long. Although it was a dirt road, it was not like the previous pits, and all the pits were filled.

After Zhang San was ready, he yelled, then pushed the glider hard and rushed forward. The glider started to move very quickly, but gradually he started to float upwards, but it was only a little bit.

"Get up, get up!"

Cheng Chumo shouted excitedly. Yu Zhigan looked at the glider getting farther and farther away, and understood in his heart that it should have been a failure. The degree was too slow. If the degree was faster, it might be able to take off successfully.

"Add, add, add!"

Cheng Chumo continued to roar loudly from behind.

"If you fly, I will reward you with one hundred taels of silver!"

Money is the absolute motivation. Since Zhang San can be sold into the business, he must have sold himself. He is very short of money. So after hearing Cheng Chumo's words, Zhang San, who had already tried his best, gritted his teeth and used all his energy to feed himself. The glider was as good as five or six, but now there are at least ten!

After hearing this, Yu Zhigan looked at Cheng Chumo with some curiosity: "Do you have money?"

Cheng Chumo nodded: "Your Highness, since I went to Tsinghua University to study, I have money, and this experiment is supported by my family!"

"I have money but I haven't gone to the brothel!"

Cheng Chumo leaned against Yu Zhi and whispered: "If your highness wants to go to the brothel, I will treat you!"

“…”

Sure enough, Cheng Chumo is still the same Cheng Chumo, just because he has a small goal now, and has not changed essentially. He is still the guy who likes to eat, drink and have fun!

"If you are not afraid of being beaten to death by your sister, go!"

After hearing Yu Zhigan's words, Cheng Chumo immediately shut up and didn't mention the brothel. For Cheng Chumo, Cheng Xiang was a hurdle that he would never be able to overcome.

"Your Highness, my sister is your concubine now. You said that as the prince, the concubine often carries a big axe out of the palace without any trouble. It's really a bit..."

Yu Zhigan glanced at Cheng Chumo: "Why are you going to manage our house affairs?"

"No, absolutely not, Your Highness, I just said it casually!"
Chapter completed!