In fact, this kind of critical secrecy is very common.

For example, how to make an atomic bomb!

The early atomic bombs, the two atomic bombs dropped on RB Hiroshima and Nagasaki, were actually very primitive.

The Little Boy Atomic Bomb dropped on Hiroshima was a gun-type atomic bomb with internal components that looked like a gun chamber, including electronic detonators, explosive packs, hollow shaft blocks, tungsten carbide and uranium blocks.

When activated, an electronic detonator at the tail will detonate the packet, and the expanding gas will push a hollow cylindrical uranium block, embedded in another cylindrical uranium block in the head, and the two pieces can exceed the critical mass when combined.

What is Critical Mass?

The critical mass is the minimum mass of the uranium material that is just enough to maintain the chain reaction.

According to the documents declassified in 1969 by the Los Alamos laboratory, a nuclear weapons research base in the United States, the critical mass of 93.8% spherical uranium-235 with a density of 18.75 g/cm3 is 52 kg.

When two uranium blocks merge, they also collide with balls made of polonium and beryllium metal around the solid uranium block, which can release a large number of neutrons and trigger nuclear fission.

In addition, the uranium block is surrounded by a thick layer of tungsten carbide, which can reflect the leaked neutrons back to the uranium block, accelerating the chain reaction and triggering a nuclear explosion.

Nagasaki's Fat Man Atomic Bomb was an implosion-like structure that exploded from the outside in.

When activated, the electronic detonator simultaneously detonates a total of 32 explosive packets under the metal plate, and the shock wave will squeeze a spherical thrust made of easily deformable aluminum.

Eventually, the nuclear material in the center is continuously squeezed, plutonium-239. A material that fissions more easily than uranium-235.

Because of extrusion, the density of this piece of plutonium-239 will increase rapidly and reach a critical state. The polonium beryllium projectile balls wrapped inside will release a large number of neutrons, triggering nuclear fission.

There is also a layer of uranium-238 on the outside, which is used to reflect neutrons and accelerate the chain reaction to trigger a nuclear explosion.

Doesn't that mean it is not difficult to build an atomic bomb?

As long as the nuclear material is in place, everyone can build it?

But that's not the case.

There is nothing wrong with the fact that there are guns and implosions in the construction of atomic bombs, but that does not mean that they are right. This was left with a trap in the documents related to the atomic bomb that were declassified by the United States.

First, the declassified materials deliberately increase the concentration of usable nuclear materials and the critical mass of nuclear materials at different concentrations, so that if the materials are copied for testing, it will lead to a waste of time on the enrichment of nuclear materials, and the possibility of critical accidents in the assembly of nuclear bombs, increasing the risk of exposure to nuclear programs, and the casualties of experimental personnel.

Second, detailed information will give the leadership of the power the illusion that it is not difficult to bomb the power, and errors in key data will lead to delays in the progress of nuclear tests, but when the progress of the nuclear program is lower than expected, the research team will encounter great political pressure, and even the team will be replaced, resulting in serious scientific research waste.

Third, for countries that are engaged in nuclear programs, if they do not conduct tests based on U.S. data, this data will not only not be helpful, but will lead to a split between the program selectors and research teams, and debate whether to stick to the previous technology route or copy the U.S. technology line.

As for the leadership, in order to ensure the smooth progress of the nuclear program, even if they knew that the materials might be fake, they had to assign a part of the scientific researchers to follow the technical route of the United States, which led to duplicate research.

Fourth, for hostile countries that have already mastered nuclear technology, even if they are aware of the loopholes in the materials, they will not point them out, but the partial authenticity of the materials will cause them to be wary of vassal countries, potential adversaries, and other neutral countries studying nuclear weapons, and prompt the decision-makers of that country to carry out intelligence collection against these countries, resulting in the dispersion of their own intelligence forces, and at the same time will avoid nuclear proliferation, and they will have to cooperate with the United States.

This is the common trick of modern international politics, a dignified and upright scheme.

At that time, the United States released some hydrogen bomb data, trying to mislead China's hydrogen bomb research and development, once it fell into the pit, it would waste a lot of resources, fortunately, Yu Min immediately noticed that there was a problem with the data, and then determined that it was wrong data through calculations.

Of course, in this day and age, even if we know how to make an atomic bomb, there is no source of nuclear materials.

The world's uranium mines are controlled by the Big Five, and only countries that have signed nuclear non-proliferation agreements can buy low-enriched uranium from the Big Five to generate electricity.

Moreover, the disposal of nuclear waste must also be reported, and India's head iron just does not sign, so India's nuclear power plants have not been able to develop.

It's back to the point.

Mu Jingchi's key secrecy is like deciphering the method of making an atomic bomb.

Take the initiative to expose some content and attract material researchers to jointly conduct research, but the most critical data and accurate roads have been kept in their own hands.

On the one hand, it can guide foreign material scientific research, and finally make wedding dresses for Mu Jingchi and Huaxia. On the other hand, it is to generalize this 'dislocation theory system' to a larger extent, which is very important for future materials research.

This controversy is inconclusive, at least not at this meeting.

Whether or not to keep it secret and how to keep it confidential is not a topic that they are concerned about as researchers, and it is enough to express their ideas, but how to do it at the national level is not something they can consider.

Regardless of whether it is confidential or not, there is no doubt that this dislocation system of the connection between theory and application will definitely continue to be studied.

So, Minister Huang moved on to the next topic.

"Led by the School of Materials Science of Huaqing University, the School of Mechanical Engineering, and the 359, 474, and 981 Yuan Research Institute of the Ministry of Industry and Information Technology jointly formed the core project of the research project of 'Mujingchi Dislocation Theory System'. ”

As the academic leader of this core project, Dr. Mu Jingchi of the School of Materials Science and Technology of Huaqing University is responsible for the construction and guidance of the general direction of the theory. ”

"Do you have any ideas?"

The next thing involved the real material scientific research, and Minister Huang and Minister Xie began to read the relevant red-headed documents.

Young people may not be stable enough, or they may not have a lot of experience, but young people are impulsive, aggressive, whimsical, and imaginative.

Moreover, Mu Jingchi is not alone, he is supported by the extreme conditions material team headed by Yang Wenwu, and also supported by Habin University of Technology, one of the seven sons of national defense led by Zhou Huaiguo and Du Cunyi.

This is not the power of one person, it can also be said to be the power of academics.

Therefore, such a heavy responsibility also fell on Mu Jingchi.

The professors and academicians below glanced at Mu Jingchi, and most of them shook their heads slightly. Mu Jingchi was born in Huaqing University, and there is a behemoth of the School of Materials behind him, and the network strength of Huaqing University is also top-notch.

If you want to compete for this kind of academic leader, which is almost the core project topic of Huaqing University's bowl of meat, there is really no way. Even if you talk about qualifications, it is not the turn of people outside the School of Materials of Huaqing University.

Luckily, there are other outside projects.

Through Mu Jingchi's academic report in the morning, they knew that Mu Jingchi had a total of 15 stages of core conjectures about the entire dislocation theory system.

But this is just speculation, and who can guarantee that this is the right path?

Everything is possible before it becomes a real system.

In their minds, perhaps the direction they choose is the real core direction.