"It's really flying!"

I don't know who shouted this, everyone looked at it and found that the bamboo basket under Hu Ye's feet really left the ground.

It's not an inch tall yet, but it's really off the ground!

Zhu Yuanzhang's eyes widened, trying to figure out what was going on with Hu Ye.

Zhu Yunwen's gaze was glazed, the person he despised really flew, although it was not tall, but as the hot air balloon slowly inflated, the distance was still getting bigger. At this moment, he suddenly felt that Hu Ye was very mysterious, and he didn't seem to know Hu Ye at all before.

"Whew!"

Xiao Qiang yelled at Hu Ye, as if he was happy for Hu Ye.

Hu Ye beckoned to Xiao Qiang, now if it weren't for Ruan An in the hot air balloon, he would definitely get Xiao Qiang up.

But now, Ruan An has a hundred catties, and Xiaoqiang now has fifty catties, if he gets Xiaoqiang up again, maybe the hot air balloon won't be able to bear it.

The students looked at Hu Ye with admiration, especially the three princes, who admired Hu Ye so much at this moment, and no longer had the contempt they had when they first entered the academy.

And as the nozzle continues to breathe fire violently, the hot air balloon has been inflated to the maximum, and the lift has reached its peak.

At this time, the hot air balloon was more than a foot above the ground, but it seemed that there was no upward momentum.

"Grandpa Ruan, throw these sandbags down."

Hu Ye said as he took out a knife and cut off the sandbags tied to the outside of the bamboo basket one by one, and then threw them out to reduce the total amount of the bamboo basket.

Ruan An also knew that this was to reduce the weight of the entire hot air balloon, that is, the downward Newton would be smaller, so that the upward Newton would be greater than the downward one, and the hot air balloon would be able to fly, and in an instant, he felt that he had a deeper understanding of the Newton in Hu Ye's mouth.

As the two men continued to sandbag outward. The hot air balloon began to rise again, and the thick hemp rope that held the hot air balloon to it began to be straightened.

"It's flying!"

Wang Lin raised his head and looked at the hot air balloon that was already more than three feet above the ground in surprise, this was his dream after coming to the academy, and he built a wooden airplane, although it could glide, but it could not fly.

Now that Hu Ye is flying in front of him, can he not be excited.

Zhu Ying was also so excited that he couldn't help himself, and he couldn't wait to pull Hu Ye off now. Then sit on it yourself.

"Okay, don't throw it away."

When half of the sandbag was thrown away, Hu Ye stopped Ruan An's movements, and if he threw it again, the weight in the bamboo basket would be too small, and the force of the hot air balloon would be too great, and the rope below might be torn off.

After Ruan An was busy for a while, he was already sweating profusely, so he wiped the sweat on his forehead with his sleeve. Leaning out, he was scared half to death.

"I'm really flying!"

Ruan An said excitedly, this height is not high, three zhang high. Many of his buildings were taller than that, but he didn't feel that agitated when he stood on top of his buildings before.

Now sit on top of the hot air balloon and watch yourself slowly rise. I was even more excited than watching my own building take shape little by little.

"Grandpa Ruan, don't worry, it will rise." Hu Ye smiled, and then increased the intensity of the nozzle's fire. Immediately, the balloon began to rise again.

"Lao Lou, this kid is a freak, I can think of this thing, you said that we came to Qingtian Academy to teach, did you make money?" Xiao Jiuxian looked at the slowly rising hot air balloon and said to Lou Ying.

"Earned, of course earned, not to mention anything else, his blood transfusion to save people, we couldn't even think of it before. And that bloodthirsty needle, although we haven't developed it yet, I believe that that thing will definitely become a weapon to save people. And now this thing, if it's really like what that kid said, it's easy for us to go home in the future, we don't have to suffer from the bumps of the carriage anymore, just sit on this thing. Lou Ying muttered.

"Two gentlemen, how high do you think this kid can fly?"

Zhu Yuanzhang heard the conversation between Lou Ying and Xiao Jiuxian, and suddenly wiped his mouth and asked.

He is no stranger to these two old men, because Lou Ying had been a doctor before, and Xiao Jiuxian had treated his wife.

"We don't know anything about going back to the emperor, but we believe what he says. He once said that it only takes two hours to get from Nanjing to Beiping, and we didn't believe it before, but now we believe that with his strange brain, maybe he can really make something that can make people from Nanjing to Peking in two hours. Lou Ying replied.

"Two hours from Nanjing to Beiping!"

Zhu Yuanzhang was taken aback when he heard this, what kind of speed is that, the two places are thousands of miles apart, even if they are good horses in the army, they may not be able to run for a day and a night, two hours? Is it flying?

Zhu Yunwen still wanted to scoff at this remark, but when he saw the hot air balloon flying slowly, he didn't make a statement, so as not to wait for Hu Ye to finally succeed and laugh at him again.

If you can make something like a hot air balloon, you might be able to make something from Peking to Nanjing in two hours.

Hu Ye didn't know what the people below were talking about, because the sound of the nozzle breathing fire was whirring, and even when he was talking to Ruan An, he had to be very loud to be heard.

Ruan An was already admiring the surrounding scenery at the moment, which was different from the feeling of standing on top of the academy building, this was the feeling of flying.

"Boy, go higher! Higher! ”

Ruan An said excitedly and loudly to Hu Ye.

Needless to say, Hu Ye will also make the hot air balloon fly higher, because Zhu Yuanzhang said before that only by flying higher than the academy can he be regarded as sending himself to the sky, and the crime of not teaching alchemy on Danke can be erased. Although Hu Ye doesn't think it's a crime, who makes himself not the boss?

The speed of the hot air balloon ascent is very slow, but fortunately the weather is very good today, just a light breeze, which has little effect on the trajectory of the hot air balloon, and there will be no violent shaking.

Slowly, the height has reached the same as the academy, standing in the bamboo building, seeing the crowd below, there is a sense of condescension.

"Haha, that's what it's like to fly!"

Ruan An couldn't get excited, and asked Hu Ye to continue to turn the big switch, and he had to raise it, obviously the current height could not satisfy him.

Hu Ye rolled his eyes. This thing is really a dog, just now he was reluctant to get into a hot air balloon, and now he is the most excited, it is like two people.

However, Hu Ye didn't dare to continue to screw the valve, if the fire was too big, the lift of the hot air balloon would be too large and the rope below would be torn off, and they wouldn't know where to be blown to, even if there was a rudder on the bamboo basket, there was nowhere to borrow power in the sky. It's going to be very helpless.

Seeing that Hu Ye was unwilling to continue to screw the big valve, Ruan An was a little disappointed, but he was already satisfied with flying so high.

The rope below has been completely straightened, pulled by the stump below, and the hot air balloon has reached its highest height.

It wasn't until now that the guards below came to their senses, and Hu Ye really flew.

Although the students were surprised, Hu Ye surprised them too much, and they were all used to it. So after being surprised, I was envious, when would I be able to go up and sit down.

Zhu Ying and Wang Lin couldn't help it, and began to shout at Hu Ye, wanting Hu Ye to come down. They also went up to experience it.

But where could Hu Ye hear their words, he was directly drowned in the whirring sound of the nozzle.

"Boy, why didn't you make this thing before? Isn't this the Flying Sky? You figured it out so quickly, why did you even set up the Gewu Department? ”

Nguyen An breathed in the fresh air in the air. Looking at the scenery that he couldn't see before, the excitement passed, and he asked Hu Ye curiously.

"Grandpa Ruan. It's not just hot air balloons that can fly, but what I used to call flying is another kind of airplane, which is the airplane I asked my students to build. "Hu Ye is in a good mood today, the hot air balloon has taken off, and Zhu Yuanzhang's silver should also be in hand, so he is happy to answer Ruan An's questions.

"Airplanes? Is it the plane that Wang Lin built out of wood? That thing can fly like this hot air balloon? Ruan An looked at Hu Ye in surprise.

"Of course you can, and it will fly higher and faster than this." Hu Ye said proudly, "But that thing can't be made yet, the accumulation of our academy is too shallow, and there are still many key problems that can't be solved." However, with the establishment of Danko, those problems will be solved one by one. ”

Hu Ye also had to thank Zhu Yuanzhang for forcing him to set up Danke, if it weren't for this, the process of his research on aircraft would be greatly prolonged, because he would not have thought that those key components could be made by Dan furnace, and would only count on the increase in steelmaking skills in the Ming Dynasty, so maybe he would not be able to build an aircraft in his lifetime.

But Hu Ye also knows that being able to create high-strength metal is only the first part of the plane to take off, and the more important thing is the power problem, which is the most important thing, and the power problem cannot be solved, and no matter how good the material is, it will not be able to rise to the sky.

But Hu Ye is not in a hurry, there must be a road in front of the lane mountain, he has proven this several times.

"Fly higher! Fly faster! Ruan An looked at Hu Ye in surprise, he was sure that Hu Ye was not fooling him, could this kid really be able to create something that could reach Nanjing in two hours?

"Okay, we've been in the sky for a stick of incense, it's time to go down, or someone down there will die in a hurry."

Hu Ye looked at Wang Lin and Zhu Ying, who didn't know what they were yelling at him, and said with a smile.

"It's going to go down, I haven't had enough of it." Ruan An closed his eyes and breathed in the fresh air again, although it was still mixed with the smell of fierce fire oil, but he felt that this was the best air he had breathed in his life.

So Hu Ye began to screw the small valve, so that the fire sprayed by the nozzle became smaller and smaller, and the lift of the hot air balloon gradually decreased.

Then he gestured to the group of guards below, asking them to help pull the balloon down.

But the group of guards didn't seem to understand Hu Ye's gestures, and they didn't react.

"Pull the rope! Pull the rope! ”

Hu Ye had no choice but to shout loudly below.

However, at this moment, Hu Ye suddenly felt a wind blowing on his face, and the flames on the nozzle were also whirring.

"Not good! It's been a change! ”

Hu Ye's face changed, and he roared even louder. (To be continued......)