"Father-in-law, you old man just put your heart in your stomach, how dare you go to Liangshan without three-thirds? This point is grasped, and the son-in-law still has! Zhang You said confidently, just kidding, in the future, he will not only be a famous doctor, but also a top extreme enthusiast, and it is not trivial to fly a glider?

"That's not going to work, it's not a joke." Zhang Rang still didn't agree.

"Why did you forget, this glider was made by my son-in-law, I can build him, can I still play it?"

"This" Zhang Rang hesitated, and when he reacted, Zhang You had already gone out, so he could only chase him out helplessly.

The wind and snow stopped early, but the weather was still very cloudy, dry and cold, walking on the snowy ground, every step down, there would be a creaking sound.

Hearing that Zhang You was going to fly a glider in this weather, the soldiers of the Tianbing Guard were also interested, and soon someone brought a few gliders, and everyone's eyes were burning, Feng Yong said bluntly: "Can you fly in this weather?" Don't be reckless! ”

"It's a mule or a horse, it's useless to just talk, you have to pull it out and slip ......" Zhang You said with a smile while looking at the unreserved traveler who was curiously circling around a glider: "...... How about Lao Xu, don't look at you well-informed, this thing must be the first time I've seen it, right? ”

"You're talking about flying, that's what you say?" Leaving no traveler's eyes shining, carefully rubbing the tight brocade wings on the bamboo skeleton of the glider with his hands, he couldn't help but have the situation of the eagle spreading its wings and soaring in the blue sky in his mind, and suddenly felt a little emotional, this kid is really bold, dare to think about what people dare not think.

"What do you think?" Zhang You said with a smile: "The reason why birds can fly is naturally their wings, how can people fly without wings?" Of course, you'll have to find a way to add one to yourself. Of course, this thing can only glide, and it can't really fly as freely as the birds......"

"It's already very good, you have to find a high place first, right? Yes, there are hot air balloons, but this is too big, can you put it on the hot air balloon? ”

The words of not leaving the traveler reminded Zhang You: "This is a good idea, everyone wait a while, I will come when I go." After saying that, he turned around and left, everyone was curious and hurriedly wanted to follow, but he stopped him: "Don't follow me, keep it secret first, by the way, prepare a hot air balloon, I'll use it later." ”

Everyone became more and more curious, and they couldn't get the essentials of the meeting, so they could only prepare the hot air balloon according to his request.

Zhang You left for more than half an hour, and when he reappeared, he was carrying a particularly big burden behind him, and he didn't know what was in it, so he said excitedly: "Let's not fly the glider first, and I will perform a parachute jump for you." ”

When it comes to skydiving, Tianbei is already very experienced, Zhang Rang's heart is relaxed, but the rest of the people are a little disappointed, feeling that they have waited for most of the day in vain.

He had heard of skydiving, and it was said that Zhang Youde was the emperor's *favor* letter was the shocking jump on the hot air balloon, and he had always been curious about what it was.

"Okay, I really didn't run in vain today, go, hurry up and let me see and understand." He got into the hot air balloon first, and Zhang Rang was still a little worried about Zhang You, so he naturally didn't dare to slack off. The coach is on the hot air balloon, and even if others are not interested, they have to accompany each other, so there are six or seven of them, if it is not for Zhang Rang to stop them, they will squeeze up.

Zhang You became the last one to get on the hot air balloon.

Everyone else is reckless, but Zheng Yong has brains, carefully looked at the big burden behind Zhang You, and asked, "The figure skydiving that the adult just said should be related to the burden behind you, right?" ”

The hot air balloon was already ready and slowly left the ground, and the people on the ground gradually dispersed, but there were still many people who stayed to watch the excitement.

Zhang You pretended to be mysterious, laughed but did not speak, but in his mind recalled the situation when he jumped from the sky in a gliding suit in his later life, the speed of more than 130 kilometers per hour, the earth was rapidly approaching, and the adrenaline was secreted at high speed, that kind of feeling, only the real brave can enjoy.

It's been a long time since I've danced, so I'm looking forward to it! Before he could start beating, his heart was already beating faster.

The balloon gradually increased its speed, and the people on the ground became smaller and smaller, and finally turned into black dots like ants.

"Okay, Zicheng? It's already high. Zhang Rang said.

Feng Yong interjected: "At present, it is about two hundred zhang from the ground. Although people have become accustomed to the weights and measures practiced by Gewu, there are still occasional expressions of habit.

This is the experience summed up after many flights, and the accuracy is basically guaranteed.

Zhang You shook his head: "It can be higher, haven't you tried to pass through the clouds?" ”

"This ......" Everyone shook their heads, only Feng Yong said very proudly: "The last general has tried, and after about a thousand meters above the ground, you will be able to see the magnificent wonders of the sea of clouds......"

"That's the stratosphere, I have long found out that our air is layered, the bottom is the troposphere, the air flow is disordered, about a thousand meters high, and then the stratosphere, as for the upper part, it seems that there is something missing in the air, and it will be difficult to breathe......"

Zhang You was interrupted by Zhang Rang before he finished speaking: "The brothers you said have tried a lot of bravely, and they will have difficulty breathing at an altitude of more than 4,000 meters, and then the flames will seem to become dim, and it really seems that something is missing." ”

The progress of science and technology is based on generation after generation of bold people bravely pioneered, Zhang You's heart was suddenly very gratified, he has long understood that the Chinese people have never lacked imagination, just need to provide them with a correct idea, in the efforts of countless smart and brave people, science and technology will soon accelerate progress, hot air balloon flight is the same, firearms research and development is the same.

"That kind of thing, Westerners call it oxygen, people and animals breathe, and what consumes is oxygen." With Mary here, Zhang You can push all the questions that can't be explained on her head, and I don't know how much trouble he saved.

"It's worthy of being the head of the Gewu Institute, and I really know a lot of things." The traveler couldn't help but praise, he seemed to be a little afraid of heights, he hadn't spoken since he hit the hot air balloon, and he held the hanging basket firmly with both hands, but unfortunately his face was covered with a black veil, otherwise he would definitely be as pale as paper.

Zhang You didn't laugh at him, but just smiled a little shyly: "Where is this, I know a lot of things, follow me, some are times when you are surprised." ”

Everyone knows that Zhang You is a person, and from time to time he loves to show a little bit of a small thing, and they all smile, not thinking about it, but he snorted without leaving a passerby, and said with some disdain: "You kid is really not praised, and he gasped before he could do anything." ”

Who the hell is this person, mysterious and secretive, why is it not polite to talk to Lord Xiao Zhang at all? Everyone has long thought it is strange, and it is even more strange to hear that the traveler who does not leave a traveler to speak so politely.

There was a confusion in front of him, it turned out that the height of the hot air balloon had reached the lower edge of the clouds.