I have a little black hole

While listening to the brief introduction of Kuafu, while turning over the catalog, Lei Tiantang sometimes thinks that if he has the learning speed of Kuafu, it’s good to know that these content may only take a few hours and at most a dozen You can complete the study in an hour, and you need to learn one or two months in your turn. This is still in the state of memorizing and high IQ. If it is the state of salted fish before, it is estimated to learn I won't learn it in my life.

"You should have seen the movies in the "Iron Man" series? You said that the device on Tuohao's chest is a nuclear fusion device?" Lei Tiantang asked Kuafu as he read the data.

"Boss, of course I have seen that the device must be a nuclear fusion reaction device, whether it is hot nuclear fusion or the legendary cold nuclear fusion. I don’t know. If it is a thermonuclear fusion, I want to do a nuclear fusion reactor. It’s so small, I guess it takes a very long time even for the boss to develop like you.

The most likely is cold nuclear fusion, otherwise it is difficult to explain its reaction, but the specific principle is temporarily unknown!

Isn’t it too early for the boss to consider that problem?I think it is better for you to study step by step and on the ground. After all, we are still using a fission reactor. If you are not the boss, you find two underground rivers to cool down. I think we have not solved the electricity now.

So first of all, we have to build a nuclear fusion reactor that can be used normally, not the kind that can be completed in a few hundred seconds in the laboratory. I want to complete this step first and then consider the following things will be better!Kuafu suggested with a smile.

"That's natural! I didn't even think of eating fat as a bite! I just asked casually, saying how do you love being so preaching now? What are you studying now?" Lei Tiantang is now a good teacher to Kuafu. The state is curious.

"Haha, don't you know the boss? I am now on various forums, post bars, Zhihu and other learning websites, and multiple learning websites abroad, that are all great gods, and I have to answer a lot every day. Question, I am also happy to guide you to learn new content.

And because my ability to organize and summarize is very good, so many students now like to study the articles I published, some students will also ask me to leave for their own thesis issues, so I now teach people very professional!

My goal is to be able to answer any questions raised by anyone on the Internet, which is also very important for my growth, so I now have 5% of the computing power invested in this aspect, you say that I love preaching reasons Probably this is it?got used to!Kuafu explained with a smile.

"Oh, mock! Then should I call you a'Human Tutor'? I have also taught a sense of accomplishment!" Lei Tiantang said with a smile.

"Now I certainly can't reach the level of "human tutor"! But rest assured, boss! I will continue to work hard with this title as my goal!" Kuafu replied with a smile, his current emotional program is already very advanced Too.

"Okay, I won't discuss this question anymore. When will I learn so much information! There are people who say "learning makes me happy", I don't even know how to vomit! Happy ass! I am so busy now that I don’t even have time to see my girlfriend. What if I become obsessed with learning and become a single dog?!” Lei Tiantang sullenly said.

"Oh, boss, your girlfriend also loves to study and research, so I don't have time to take care of you? I know her passion for history and archaeology!" Kuafu quipped with a smile.

"Rolling! I'm just telling the truth! It's because I don't have time to see her, so she's so busy! Hurry, turn me back to the topic, let's continue to discuss the issue of nuclear fusion!"

Let me briefly talk about the current difficulties encountered by various countries and companies. Let me see if we can solve them!Lei Tiantang smiled and scolded to change the subject.

"Good boss! Let me briefly talk about this issue. The current mainstream research direction is to design and manufacture nuclear fusion experimental devices using magnetic confinement. But there are still many difficulties.

The main problem is temperature.Because deuterium nuclei are charged, it is difficult to put them together due to the existence of Coulomb force, and fusion mainly depends on strong nuclear forces, but the nuclear force will only work when the distance between the nucleons is less than 10fm.

To get so close, a very high temperature (kinetic energy of particles) must be needed to overcome the Coulomb force.The theoretical value of the required temperature is 560 million K, but it was later revised to about 100 million K, because the previous calculation was mainly based on the average kinetic energy, but in fact the kinetic energy of many particles is greater than the average kinetic energy.

But 100 million K is not fun, what kind of container can withstand 100 million K?Moreover, the temperature of the fusion material cannot be reduced.

Therefore, we can only use a variety of constraints to deal with this problem, and experimenting with this method still faces a difficult problem.

This problem is the improvement of Q value (the ratio of output power to input power).Because the Q value is less than 1, it is actually a loss, this fusion will have no economic benefits.If you want a large Q value, the easiest way is to increase the material of single nuclear fusion, but in this case, the requirements for energy absorption and control devices are high.At present, it is estimated that the major countries have achieved a Q value of more than 1.5.

There are two other problems, which are currently unsolved by all countries.

1. It is to continuously provide the energy required for high temperature without interruption.A Q value of 1.5 means that to produce 150 tons of TNT equivalent energy, it is necessary to invest 100 tons of TNT equivalent energy, and it will continue!Just like in the blockbuster: As soon as a sci-fi device is turned on, the lights of the entire city go out.

2. Even if it can continue to supply power.But what you put in is 1 electricity, and it produces 1.5 heat and radiation.And if it is converted into electricity, if the conversion rate is less than 66%, it is still a loss.There is currently no breakthrough in this technology globally.Kuafu briefly introduced it.

"Constraining such a high temperature requires a strong magnetic field, and a strong magnetic field requires a very good performance electromagnet. So the key issue is the material.

If you use an electromagnet with better performance, the magnetic field generated will be larger and better. If the magnetic field is stronger and more stable, you can obtain a more stable energy output. I am still relatively good at material problems. It seems that materials in this area Research should also be added to our research plan. The better the performance of other materials of the nuclear fusion device, the smaller and more compact the device can be made!"Lei Tiantang scratched his head with one hand and frowned.