"Look, it floated up, floated up." A big balloon, with a wooden box, slowly rose into the sky in the eyes of everyone.

This is Yang Heng's first test of the hot air balloon. However, he did not raise the hot air balloon much higher. The hot air balloon was pulled by the four ropes below, and these four ropes were firmly tied to the four iron rings on the ground. In other words, when it rises to the length of the rope, it can no longer rise. At this time, Yang Heng checks the quality of the hot air balloon to see if there are any defects. If there are defects, someone will have to repair them again. If the ball is a bit bad, it will be replaced again.

"Okay, you guys can pull it down." After the inspection, Yang Heng shouted loudly on it, and he took out an iron sheet and used the iron sheet to buckle a stove. In this way, the flame of the stove would not burn the hot air balloon. When the hot air balloon was launched, people could support the hot air balloon to make the balloon full of air. But when it fell down, if the stove did not block it, it would be easy for the flame inside the stove to burn the hot air balloon. This is one of the disadvantages of using a blowtorch to inflate the balloon.

However, Yang Heng was also careful in this furnace. After many tests, he created a wind that uses natural power. Even if a little breeze makes the flames eject, there is no wind. When the furnace is ignited, it will also eject flames. Only in this way can the hot air balloon be launched. However, Yang Heng estimated that the hot air balloon will not rise too high. This flame determines its lifting ability. Once the oxygen in the air decreases with the height, it will not continue to lift off.

"Crack." No, the bottom of the box was cracked by the ground. Yang Heng didn't expect it to be a matter. He took into account all the situation, but he just didn't consider the impact of the moment when it landed.

"Learn from literature, I'll thicken the wooden board again." My uncle blushed. "Uncle, it's not your fault. It's just that thicker. I didn't consider it. Just get a few discarded tires. Fix the waste tires around the box and the bottom. This situation will not happen again."

Yes, Yang Heng did not consider the issue of shock absorption. Now that he has considered it, there will be no problems in the future. Besides, many waste tires have been replaced in his own transportation team. It is just right to use it, or even use new tires directly, and even special tires can be made, but it is better to use waste tires. In the future, this waste tire needs to be used in many places. Why, this has now constituted pollution, because the waste tires have not yet formed a reuse chain, that is, there is no technology of waste utilization. If it is scrapped, it is waste, and naturally it is pollutant. So it is still possible to use it in all aspects as shock absorption things. For example, some rubber pads made purely for shock absorption, use these waste tires to replace them instead of making new rubber pads, or even some tires that can be replaced, modify them and install them outside the wheels of wooden carriages and ox carriages.

"Uncle Fifth, can you urge the factory to make the miniature steam engine I need as fast as possible?" Yes. Yang Heng is waiting for the miniature steam engine now. Without this thing, even if the hot air balloon is in the sky, it can only float with the wind. Moreover, Yang Heng cannot bring people to use artificial as the power to adjust the direction.

"Okay, my eldest nephew, I will urge them to work day and night." "Uncle Wu, don't be too anxious. Working requires rushing, but this quality must be done well, otherwise if something goes wrong in the sky, it will be a big deal."

Why did Yang Heng have to use a micro steam engine as power? If he uses a micro boiler directly, wouldn’t it be fine? As long as he sprays in one direction, the balloon will move in the other direction.

In fact, this is not impossible. However, how much water is needed to bring. First, you need to bring coal and then water. The water will be consumed with gas consumption. Short-term travel can be replaced directly with a boiler, but if it needs to be used for a long time, it will not work. If you use a micro steam engine, if you can recycle steam, you can greatly save water. Although there is still consumption, this consumption is really small and negligible.

"Alang, your Majesty let you tell me to enter the palace." This made Li Er discover again. Such a big thing can be seen from a distance. If Li Er didn't know, Yang Heng would definitely not believe it.

"I've seen Your Majesty." "Don't give me a gift, come and learn literature, come to my side, sit down." Li Er was getting more and more polite to Yang Heng now, even Changsun was smiling at Yang Heng.

"Learn from literature, my family is about to be eighteen years old?" "Yes, Your Majesty, I am ready," "That's good, that's good, I'm just waiting to report my grandson. You also know that you are the leader of your Yang family. If you don't have a child, you are not a complete family, right?"

Li Er called Yang Heng into the palace, but did not go straight to the point, but started a chat with Yang Heng. What does this mean? Did I tell me to say it myself?

"Learn literature, when will you send my family, Yu Zhang, to the palace. Just do business with Yu Er, then you will have a ceremony first, right? Yu Zhang, I will be able to officially marry you this year. I think it's better to let her live in the palace for a while in the future." "Okay, Empress, after I go back, I will send Changle and Yu Zhang into the palace. However, it's enough to stay in Changle for a few days. That, there is no need to do any more rituals, right?"

"Well, it's done." Yang Heng knew that their purpose was not this. "Your Majesty, Empress, I have something new to make. I want to invite Your Majesty and Empress to visit my house."

"Is it just the big ball? I heard that the ball can reach the sky, but it is not high, and can fly four or five feet high?" "Yes, Your Majesty, but it is not four or five feet high, but can rise to a height of hundreds of feet. That height is very useful whether it is battlefield command or map production."

"Well, okay, I will go to your house with the queen to watch the ceremony at that time, but it is not outside the city, it is best to put it in the city." "It's true, I will definitely put a new airlift test into the city at that time. I hope Your Majesty will watch the ceremony." Li Erqiang suppressed his curiosity and did not continue to ask, but asked Yang Heng to leave.

"Erlang, why don't you ask in detail?" "Hehe, Guanyin Bi, I won't ask, didn't he say this himself? I don't know how much ability this kid has. Even God can do it. I can't ask, I can't ask, otherwise, I won't seem to be really incompetent." "Your Majesty, I don't like to listen to this sentence. I have specialized in this profession. If you ask this kid to write an article, can he do it? I haven't heard of what articles he has done. Even those poems he recites, I doubt where he plagiarized it." Changsun is really smart. Yang Heng's plagiarized poems, that's absolutely right, but they never thought of where they plagiarized it. Even these designs were plagiarized, and no one would know it.

"Well, yes, it's just like this. Fill the bottom with cement and lay it as it is. I don't want to see this change here. That's too ugly." At the request of Li Er, Yang Heng went to his home in the city and renovated it in the yard. Yang Heng estimated that Li Er would definitely want to sit on a hot air balloon, so he needs to completely fix the bottom, otherwise, just use four or multiple big men to pull it. But if Li Er wants to go up, it's better to use a land pile, that is, four iron rings to hold the hot air balloon, which is simple
Chapter completed!