After they boarded the balloon, Li Xiang's specially trained workers began to release the rope under the balloon. Pen | fun | pavilion www. ｂｉｑｕｇｅ。 infoThis rope was also woven by Li Xiang with skilled workers with strong hemp rope.

Watching the balloon rise higher and higher, all the people who were lower were amazed.

Ding Daquan shouted even more wow, saying: "This Gewu is really magical, no, Lao Tzu will learn it tomorrow." ”

Hearing him call himself Lao Tzu, the ministers on the side thought of Lao Tzu in the poem written by Li Xiang, and they all smiled.

Li Xiang was also worried about one thing on the balloon, that is, he was afraid that Emperor Lizong was not in good health and had a fear of heights. However, as the balloon rose higher and higher, Emperor Lizong became more and more energetic, and pointed down with his finger, saying that this is my palace, this is the street in the capital, and he admired how far he could see in this way. Once, in order to see more clearly, he also stuck his head out, so frightened that Li Xiang hurriedly dragged him back regardless of his identity.

The little princess was not good, at first she was still screaming excitedly, but then she shrank in the middle and no longer dared to look out.

At this time, the rope has been put to the maximum point, that is, 500 meters, and the vertical height from the ground is about 300 meters due to the wind. Emperor Lizong said with great interest: "Lord Li, it is indeed higher than the furnace you built. ”

Li Xiang said: "This furnace has not yet reached the level of profundity, otherwise it can create a high-rise building higher than the current balloon." ”

Emperor Lizong's mouth opened again and stuffed the eggs, how high are they now, even higher than now, do people still dare to live on it?

Li Xiang said: "So Weichen said that there is no end to learning. ”

Emperor Lizong patted him on the shoulder and said, "So in the entire Great Song Dynasty, you are the only one who can say that there is no end to learning, and none of them have appreciated the real learning." ”

Li Xiang is the Great Khan again, this is on the balloon, if it is on the ground, Emperor Lizong will not make people jealous to death when he says this.

Li Xiang hurriedly said: "There is a specialization in art. Strengths. ”

Emperor Lizong turned around and said, "I know that you are modest, but I see that you are good at everything, and you are an all-rounder. It's a pity you're still too young, or I'll reuse you. ”

Li Xiang hurriedly arched his hand and said: "Wechen doesn't dare to praise him like this, but Wechen can assure Your Majesty that Wechen will do his best for Your Majesty's country and die to repay Your Majesty's love for Wechen." ”

Emperor Lizong said lovingly, "Good boy. ”

He remembered again and said, "Hey, I forgot, you promised to put on a show for me." ”

Li Xiang said: "Yes, I will perform for Your Majesty immediately, but Your Majesty should not panic for a while, Weichen is very safe." ”

As he spoke, he took something out of his seat tray and tied it to his body, then he put his head out, looked at the altitude, the direction of the wind and the environment below, and jumped off the balloon.

Emperor Lizong was stupid, there was still a life for this jump, and the little princess was so anxious that she cried. But the soldier then said, "Your Majesty, look. ”

Emperor Lizong and the little princess stuck their heads out, but they saw that with Li Xiang's landing, a large square cloth bulged out behind their backs. It's just that this big square is very big, and there is a banner behind the square square, which reads: Long live Your Majesty the Great Song Dynasty, long live the people of the Great Song Dynasty. At the same time, his descent slowed down, like a large bird sliding peacefully down in the sky.

Emperor Lizong was stunned for a moment and said, "Hey, what's going on?" ”

Then he looked at the banner and laughed again: "This kid, it's messing around. ”

This is the parachute made by Li Xiang. There is also a height limit for parachutes. The safe altitude is 5000 meters, and professional athletes sometimes choose to skydive 7500 meters at work. There is also an extreme sport, low-altitude skydiving. The minimum safe altitude for a standard ordinary aircraft parachute jump is 500 meters, and the minimum safe altitude for a parachute of a military paratrooper may be designed to reach 300 meters. However, the ejection seat of the fighter jet can still be safely ejected above 100 meters. Of course, considering Li Xiang's young age and weight after all, this height can still be reduced. Therefore, Li Xiang is still very safe to jump from the current height. As for the record of the lowest skydiving height of professional skydivers is 50 meters, that is the work of the great gods, and Li Xiang does not have this ability. At the same time, in order to prevent the body from rotating, it is necessary to have a stable umbrella, which is also easy to make, and it is much easier to make than to make good steel.

Li Xiang did not perform this show simply to entertain Emperor Lizong, he also wanted to slowly accept this new concept through these surprising things, otherwise he would not dare to let go of chemistry for the rest of his life. For example, now because there is no helper, there is not even a person to consult, everything has to be done by yourself, and I am tired to death, so there is still time to do other things.

The people below were looking up. Now seeing that this behemoth really carried people into the air, they all let out an exclamation. But when I saw a person falling from the sky, my heart sank, no matter who it was, except for the soldier, it was terrible to fall, think about such a height, is there still life if it falls? And it's the first day of the new year.

But they saw a large "cloth" unfolded behind the man, and the descent became slower and slower. Finally, they saw clearly, it wasn't the funny Lord Li, they could still see the big banner on the parachute behind Li Xiang. Yan Guifei was angry and laughed, and said, "This little guy has scared the mourning family. ”

He turned his head again and asked Zhao Ji, "Ji'er, do you know what the reason is?" ”

Yes, the ministers all turned their heads to look at Zhao Ji, why is there a piece of cloth behind the person, and the speed of falling is so slow.

Zhao Ji thought for a while before saying, "I have heard Master Li talk about reading Gewu, and he once talked about the principle of resistance and inertia. He said that only when there is no resistance, a body will always move along its route. But this is impossible, any object has resistance, the larger the contact surface, the greater the resistance, for example, a ball has only one point of contact, its resistance is very small, and it will roll far away if you throw it forward. But a cube, because the contact surface is very large, the resistance is also very large, turn over a few times, and it will stop. There are also action and reaction forces. When Master Li descended from a high altitude, the force of his body falling, and the air also gave him a reaction force, and this reaction force also opened the cloth. Due to the resistance of the cloth, the descent speed of Master Li became slower and slower, and the person would fall to the ground safely. At the same time, there is also the effect of wind, and so on, Lone is not too clear, you should ask Master Li. ”

It's a pity that Li Xiang didn't hear this, otherwise he would have praised it: "You are already very good." ”

It's the study of things again. Damn Gewuxue, we can understand any book, but this Gewuxue is like a book from heaven. No, when Li Xiang comes back, he must refer to all the books and ask him to write this study of things clearly. I can't watch him do these things alone, and I want to try it myself. Seven or eight out of ten of these ministers think this way.

Because of the wind, the balloon has deviated from the vertical direction, and now Li Xiang is falling, and it is far away from Yujie. He looked at the place under his feet and thought to himself, something terrible. Because the area below is full of people from the royal family. But this is a parachute, not a ******, and it can be controlled. And he also landed on the roof of someone's house. (To be continued.) )