While everyone was silent, a scientist had a flash of inspiration, as if he had thought of something extraordinary, and he exclaimed urgently:

"That green-light drone! The technology of that drone completely surpassed us, but there was still no controllable nuclear fusion device in it, only a fission engine! ”

"They're a real interstellar civilization, but they can't implement fusion technology in a small spaceship with a diameter of two meters. Ｘ”

"Two meters in diameter...... Actually, it's not small, but you can't put down a fusion device. ”

That probably says a lot about it...... Small-scale controlled nuclear fusion, difficult! ”

"The smaller, the harder!"

"Yes, it must be so!" Another scientist excitedly picked up the topic: "The green-light civilization can't do without fusion technology, but it can't miniaturize nuclear fusion technology." ”

"As the great sage of the Knicks civilization said, a small device like a tokamak...... The difficulty is really high, and it is likely to be a crooked path! ”

In fact, the "tokamak" device is actually not small, it is several floors so high, and it costs tens of billions to build any one, and it turns out that it has become a small toy in people's mouths.

But for nuclear fusion, it is really just a small toy, burning plasma, and trying to generate electricity stably is undoubtedly fantastic.

Small machines, too delicate, are certainly more difficult for humans.

This kind of difficult thing is definitely easier to make a big one than a small one, and of course it is more expensive.

In fact, it doesn't matter, the new human civilization has to use the power of the race to complete it, what is "money"? One of the experts in electromagnetism joked.

The key is...... Whether it can succeed or not, whether there is a chance of success, funds, resources, human beings don't care.

"The first computer of mankind, which covers an area of 170 square meters and weighs 30 tons, is a behemoth. But if the scientists of the time were forced to condense all the equipment into a tiny modern personal computer, they would definitely not be able to do it......"

"Even if it takes one or two hundred years, it is impossible to directly ascend to the sky in one step. So, the bigger the device, the better. Isn't it difficult for a strong man to directly build a small machine? Professor Ding Yidong grumbled.

There was a strange atmosphere in the conference room, and people thought it was a little weird, but it seemed to make sense......

Regardless of the budget for the time being, as long as it can be successful, even if it is a bottomless pit, the new human civilization will have to fill it!

Based on the information left behind by the Knicks civilization, a group of great scientists began to discuss how to solve this huge problem and how to improve the success rate of its implementation......

The more I think about the "big filter", the more scary I feel. Not just the social aspect, but also the technical aspect.

The theory of nuclear fusion is too simplistic and brings too many stereotypes.

The Nix civilization also fell into the trap of "magnetic confinement", and they subconsciously believed that they could use the current technical means to control the starry sky monster of "nuclear fusion".

But in reality, it can't ...... Or rather, extremely difficult with the current means!

In the discussion with the experts, Yu Yifeng understood several big problems that are almost unsolvable in terms of current technology.

The first major problem: the "magnetic field strength" created by humans is insufficient.

The magnetic field strength of the electromagnet can be reached from the formula, as long as the current through it is infinite, or the coil density is infinite, the magnetic induction intensity can be infinite.

However, in practical applications, there is a problem of magnetic saturation due to the mechanism of the magnetic field generated by the magnetic medium inside the electromagnet, which is that the direction of the magnetic field generated by the internal molecular current is turned to the same direction.

Therefore, when the impressed current and coil density reach a certain size, the magnetic field will not increase further.

Hundreds of Teslas, which is the limit of the current laboratory, is far from enough magnetic field strength.

Without a large enough magnetic field, it is difficult to confine the violent plasma during fusion, which can easily cause damage to the instrument.

This is the first big problem, and it's almost unsolvable. Because its essence involves the movement of electrons inside the atom. Humans can only bypass the "magnetic saturation problem" by superimposing multiple magnetic rings, but this makes plasma control even more difficult.

The second big problem, the problem of neutron radiation.

Each deuterium-tritium fusion produces a 14mE neutron that can easily break the metal bonds in the first wall of the material, producing a large number of defects that cause irradiation swelling, embrittlement, creep and other problems, making the material completely unusable.

In the end, the Nix civilization did not find a very suitable material that can resist neutrons for a long time.

They can only solve the problem by constantly replacing the broken materials, causing a lot of economic losses, and most of the money is burned in this way.

Both of these involve the atom itself, and both are big problems that are almost unsolvable.

Of course, there are all sorts of other small and bits of it......

"Isn't our superalloy material good?"

Yu Yifeng understood these two key points, and couldn't help asking: "These are variants of alien materials, can't they stop neutron radiation?!" ”

"No way!" One of the materials scientists shook his head categorically and said: "No matter how good the superalloy is, it is also an ordinary material, composed of ordinary elements. Ordinary materials have their limitations, not even real alien materials! ”

"There's no way they're going to be able to live up to neutron radiation. Even if it lasts longer, it's just a few hours or a few days longer......"

“…… To really achieve power generation, but it has to be calculated on an annual basis! You can't just go out for maintenance in a few days, right? ”

Yu Yifeng nodded helplessly.

Well, these questions are really troublesome. Unless there is a huge breakthrough in some theory......

But where did the breakthrough come from? Mankind is still eating the old books of quantum mechanics and the theory of relativity!

"What is that not ordinary material? Noah's shell? Or the Noah floor? Can that purple, metal-like substance withstand neutron radiation? ”

"Uh......" The professor's eyes widened, something he hadn't expected.

After a long time, he replied, "Perhaps, but I haven't experimented on it...... Could it be that we can tear down some of the floors to block neutron radiation? ”

The floor inside Noah is not as hard as the outer shell of the ship, it can still be destroyed, for example, a supernova explosion will knock it out with a lot of holes.

However, even if it can withstand some of the neutron radiation, only one problem has been solved, and most of it has not been solved.

Now there are two paths for people to choose: the first is to follow the path of the Knicks civilization and continue to study magnetic confinement, while at the same time making every effort to develop other basic technologies and eliminate various shortcomings. I don't know how long the road will take.

Article 2......

"We are ready to abandon the idea of magnetic confinement, and even the idea of control!"

Professor Ding Yidong took the lead in handing out a report. When he said this, his face flushed, and he had a sense of madness that wanted to try.

Yu Yifeng's scalp suddenly went numb, and he thought of something strange, and when he handed out the "Gigaton Helium-3 Bomb Propulsion Plan" at the lunar base, he also had this expression......

Sure enough, Professor Ding Yidong shouted at the top of his voice in the next moment: "Controllable and uncontrollable are themselves a play on words, what is controllable?" What is uncontrollable? There is no clear definition at all! ”

"Is the hydrogen bomb controllable? The hydrogen bomb is something that can be controlled when used in war! ”

"Why are we obsessed with something like a tokamak? Even if it can really generate electricity, I don't know how much electricity it can generate in the Year of the Monkey. There is no point in obsessing over controlled nuclear fusion, we can use it altogether...... Not completely controlled nuclear fusion to power it! ”

"We ...... Just explode with a hydrogen bomb to generate electricity! ”

When he shouted this sentence, even the people behind him quarreled.

"Hydrogen bomb explosion to generate electricity? How to send it? Yu Yifeng was startled and asked subconsciously.

Professor Ding Yidong continued to say loudly: "We just need to make a container that is large enough and hard enough to completely eat the yield of the hydrogen bomb explosion......

"The nuclear bomb explodes in a metal container, and as long as the metal container is large enough and hard enough, we can directly eat this part of the explosion energy...... Of course, not just hydrogen bombs, but other nuclear bombs! ”

This sentence is like Hong Zhong Dading, which is "banging" in Yi Feng's mind. He felt that his whole head was in a commotion, and he didn't hear what was roaring behind Ding Yidong at all.

Looking at the big scientist standing behind him, there seems to be no objection.

They had already discussed it beforehand, and even the most sustained scholars believed that