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At the celebration banquet, 80% of the scientific research personnel and staff of the entire rocket launch site and ground control center participated. The scene was very lively. Several canteens were full. Tang Xiaochuan and Zheng Yaoguang drank a glass of wine and then quit. This scene is reserved for all these scientists and engineers who have made contributions.

Zheng Yaoguang has become a highly anticipated figure. There were 13 astronauts who participated in the training with him, but he was the only one who had the courage and courage to request to participate in this space journey to reclaim the scrapped satellite without completing the training.

Tang Xiaochuan put down his wine glass and went outside the celebration banquet. The weather was a bit cold, and the wind from the rocket field made his windbreaker rattle.

"Boss!" Professor Qi's voice came from behind.

Tang Xiaochuan turned around and asked, "Why did the professor come out too, don't you have fun with them?"

"Boss, I am a robot, but I am more intelligent. I understand human feelings, but I don't know how to express them!"

Tang Xiaochuan nodded and asked, "The return journey of the manned spacecraft today is too thrilling. I want to know, why not put more fuel on the spacecraft? A situation like this may happen in the future, in case there is more fuel. What should I do if it is insufficient?"

"Also, I heard that the rocket emitted some toxic gas when it was launched, which pollutes the surrounding environment a lot. Therefore, all the people around must be cleared of the field. Haven't you thought about using cleaner fuel? ?"

Professor Qi said: "Let’s talk about the issue of rocket propellants first. At present, most of the rocket propellants in various countries are conventional propellants. They are mainly liquid oxygen, liquid hydrogen, kerosene and some solid fuels. It does have a certain degree of pollution to the surrounding environment, but this is really insignificant compared to the exhaust gas emitted by cars and the heavy smoke emitted by factory chimneys!"

"In the next stage, we intend to completely use liquid hydrogen or solid hydrogen and liquid oxygen as propellants. After all, hydrogen has the highest specific energy by weight. Although the density of solid hydrogen is very small, it means that it is better than kerosene and solid fuels of the same quality. The volume is much larger, but the oxygen that needs to be consumed is much less. It is no problem to use it as a propellant for launching rockets!"

Tang Xiaochuan has some doubts: "Since liquid hydrogen or solid hydrogen and liquid oxygen can be used as propellants, why do other countries use kerosene-like liquid fuel and other solid fuels instead of launching rockets?"

"That's because they do not have the technology to store liquid hydrogen or solid hydrogen and liquid oxygen on a large scale. The cost of using them as a combustion agent and oxidant is also very high. Liquid hydrogen and liquid oxygen need to be stored in ultra-low temperature storage tanks, once they exceed the boiling point. Liquid becomes a gas and can no longer be used as a propellant. The rocket propellants in various countries do not use much liquid hydrogen and liquid oxygen. After all, the technology is not fully mature, and they are all injected with liquid hydrogen near the launch time. Oxygen, because the longer it takes, the more difficult it is for the liquid hydrogen to remain liquid, and the storage tank cannot be completely sealed. Once sealed, the pressure of the storage tank will increase greatly after the liquid hydrogen is converted. With the materials they currently use I can't bear that kind of strong pressure at all!"

"But our technology for storing liquid hydrogen and liquid oxygen is fully mature. We have even stored solid hydrogen at room temperature and pressure, and use fuel cells to heat it. After the solid hydrogen absorbs the heat, it will vaporize to a controllable degree. To completely abandon the use of fuels similar to kerosene and other solid fuels, and to use only liquid hydrogen or solid hydrogen and liquid oxygen as propellants is both clean and high!"

Tang Xiaochuan said: "I read the information that the low density of liquid hydrogen is one of its biggest shortcomings as a recommended propellant. One cubic meter only weighs about 70 kilograms. Even solid hydrogen is only 86 kilograms per cubic meter. Other liquids are used. One cubic meter of fuel is seven to eight hundred kilograms, which is nearly ten times smaller in volume than liquid hydrogen, and it occupies too much fuel storage space on the rocket!"

Professor Qi waved his hand: "This is not a problem. You can increase the number of secondary thrusters, that is, tie more thrusters around the rocket and increase fuel tanks! Because we have this technology, the cost is not high, but other countries do not have this. In terms of technology, it is impossible to completely use liquid hydrogen and liquid oxygen as the propellant!"

"Let’s talk about the fuel storage of manned spacecraft. I just mentioned that liquid hydrogen or solid hydrogen has low density and large volume. Therefore, it can only be used as a propellant for ground-launched rockets. If it is used on manned spacecraft, although technically It’s no problem for us, but because of its large size, it’s not suitable for manned spacecraft and takes up too much space. Our first-ever manned spacecraft uses a combination of liquid and solid fuel as its power. Almost all The satellites, space stations and spacecraft of China all use this type of fuel as propellants. This requires many factors to be considered. If the fuel is loaded too much, the spacecraft’s internal space will be compressed. Therefore, a lot of consideration must be given to the design. Enough to complete the sailing mission, but not too much. Too much fuel will take up the space of other equipment, so it can only be just right!"

Speaking of this, Professor Qi said: "The thrusters of the manned spacecraft in Meiguo are now using ion engines, and the technology has also made great progress. Its specific impulse is higher than any existing fuel. High, but the disadvantage is that the thrust is small. The high-speed particle stream can only blow a piece of paper. Therefore, this ion engine cannot be used as the propeller of the launch vehicle. It can only be used in manned spacecraft and spacecraft for vacuum conditions. In outer space navigation, ion engines can achieve faster speeds than chemical fuel propellants. It is said that Mei Guoren intends to use this ion thruster on a manned spacecraft for navigation to Mars!"

Tang Xiaochuan immediately asked: "Can we develop this ion engine now?"

Professor Qi said with a smile: “Power is one of the most critical factors that limit humans’ interstellar voyages. The ion engine can make the spacecraft faster than chemical propellants in a vacuum environment because it needs to carry less gaseous working fluid. , The engine is small in size and weight, so it is also suitable for long-distance sailing, but it can only rotate within the sun, and it takes a long time. If you want to fly out of the galaxy, you still can’t! The reason is that its thrust is too small. Just imagine, how long does it take to accelerate the spacecraft to the speed of light, or even faster than the speed of light? Can the spacecraft carry so much energy?"

"In the interstellar navigation in the star system, there are two research directions in the research of power. One is the ion engine. The Mei Guoren has walked in the forefront of the world, but its acceleration is too slow; the other is the antigravity engine, or antigravity engine. Gravity engine, if progress is made, it can make the spacecraft get more powerful acceleration, and it can also be used inside the spacecraft, allowing astronauts to move freely in the spacecraft as if on the ground, and at its peak, it can allow the spacecraft to go faster than light. Navigation, but this development process requires continuous exploration of the use of energy. Its advantage is that there are planets nearby and the anti-gravity engine can provide power!"

"And if you want to sail across galaxies, you have to conduct space technology research. For example, the portal established by the interstellar exploration spacecraft at the Pluto base outside the solar system belongs to space technology. At present, this is only a secondary portal. The transmission distance is limited!"

After listening to Tang Xiaochuan, he said: "It seems that the research direction of this interstellar voyage is mainly based on anti-gravity engines. However, since Mei Guoren is already working on this ion engine, we can also form a team to conduct research at will, Pluto base Shouldn’t China’s technology in this area be decompressed?"

"Yes, it can be called at any time. I will form a team to work on the ion engine as soon as possible. The main research and development direction is still on the antigravity engine!"

Tang Xiaochuan patted Professor Qi on the shoulder: "Then it is so decided. Our mission to the moon will use a manned spacecraft equipped with an ion engine on the bright surface, but secretly we will build another one that uses an antigravity engine as the power. System of manned spacecraft!"

Afterwards, he took a special plane to leave the rocket launch site and return to Binhai.

It was already nine o'clock in the evening when I walked out of the VIP channel from Binhai Airport. Bingge opened the way in front, but he was still stopped by some reporters.

"Mr. Tang, it is said that the Dongying satellite that Zheng Guangyao crashed in the synchronous orbit belongs to Dongying Chaoyao Group. I have received reliable information that Chaoyao Group has contacted Feitian Technology Group and demanded that the group pay 200 million US dollars in compensation. What do you think of this matter, Mr.?" A quick-mouthed female reporter caught Tang Xiaochuan with a microphone and asked loudly.

Tang Xiaochuan turned a deaf ear to this, and walked over to the car that had been parked not far away under the direction of Bingge. He originally wanted to take a helicopter home, but the helicopter was being maintained.

When other reporters saw Tang Xiaochuan not speaking, they shouted one by one: "Mr. Tang, let's talk about it. Could you please tell me how your group intends to respond?"

"Yes, Mr. Tang, let's talk about it!"

Tang Xiaochuan walked to the car that had opened the door, stopped and turned around and said, "I can only say that the Chaoyao group is crazy about money. As for how to respond, why should Feitian Technology Group respond? They are going to bark there. Just let them bark, can you still bark like them?"

"Pop, pop, pop" Several cameras flashed at the same time.

These few words of Tang Xiaochuan made all the reporters flushed with excitement like chicken blood. These few words revealed too much information, enough for them to let the report of this incident follow Feitian. The technology group’s manned spacecraft reclaimed artificial satellites for live broadcasts will compete for the headlines of tomorrow, and may still be able to compete for the hot search list. I can make money by swiping the video. The latest chapter address: https://www.ltnovel.com/book/152524.html I can make money by swiping the video. Read the full text address: https://www.ltnovel.com/read/152524/I can make money by swiping the video. txt download address: https://www.ltnovel.com/down/152524.htmlI can make money by swiping the video. Mobile reading: https://m.ltnovel.com/read/152524/In order to facilitate the next reading, you can click on the \"collection\" below to record this time (Chapter 288 he wants to bark Let him bark) Read the record and you will see it next time you open the bookshelf! If you like "I can make money by video", please recommend this to your friends (QQ, blog, WeChat, etc.) Book, thank you for your support! ! (www.ltnovel.com)