People around me originally heard Professor Sun Hao’s question and were expecting Lu Yuan to be able to make a long speech, but no one could have thought that the final answer would be so simple, and they couldn’t help but feel an uproar.

Yes, although Sun Hao is a professor in the Department of Physics, the major classes he teaches are often not restricted to majoring, so senior Chinese students like Ran Dong who are interested in physics come to listen to the class.

But even for physics majors like Lu Yuan, and even the most appropriate nuclear physics, what they are learning now is basically basic theories. Generally speaking, they will not be exposed to specific equipment and operating principles at the undergraduate level.

After all, I have a life. If you dive into a specific device to study, it is not impossible for you to get rid of the device after you have learned it thoroughly.

After all, technology is changing with each passing day, and it can happen at any time in five or ten years.

After all, the computer major was once considered a top popular major, but now there are computer majors that have to be used as coders to move bricks and become the screws of social construction.

So, Lu Yuan’s view made them a little unacceptable.

Yes, after seventy or eighty years of development, how could it be that there is no progress at all?

For example, mobile phones and computers around you will be updated in one or two years. Only when humans rely on Moore's Law can they drive a large amount of consumption on electronic products.

But Sun Hao looked at Lu Yuan and nodded with some relief: "Yes, although we have made a lot of improvements."

"But essentially, what we are still doing is the old Tokamak device more than 70 years ago. In addition to being larger and larger, more stable and using some superconducting technology, it is actually the same as the thing seventy years ago."

"Just like in the decades since Watt's improved steam engine, the steam engine has never developed epoch-making."

"The one that can replace the steam engine will definitely not be another steam engine, but a more efficient electric motor and internal combustion engine."

After briefly explaining to the classmates present, Sun Hao turned around and patted the screen: "In short, I don't talk about the corresponding technical details here. I would rather popularize science for you. Nuclear fusion is a pearl that human development must be picked. Just like the sky fire stolen by Prometheus, no matter how much sacrifice and effort it is made, someone must strive towards this goal, just like Yugong moving mountains, sons give birth to sons, grandsons give birth to grandsons, and sons and grandsons are endless."

"But the premise of Yugong moving mountains is that there must be descendants who will always dedicate their youth to careers where they may never see the dawn."

"When I was so old with you, my mentor told me that it only takes fifty years to control nuclear fusion."

"Because we had already made hydrogen bombs at that time, the Tokamak device was also being maturely debugged. At that time, there was an ignition experiment. But decades have passed, all we can do is extend the duration of ignition. And I am standing here, when you ask me when the energy for nuclear fusion will be able to fly into ordinary people's homes, my answer is still fifty years."

"This is something I may not see in my lifetime."

"But even if we can't see it, we have to keep doing it, because it's what our descendants need, and there's no reason to leave it to them to do it."

"Otherwise, when they really need nuclear fusion, they will come to blame us and ask us what we have done in the past few decades and hundreds of years."

"A lot of things about science are not something that you have to see the results before you can do it. We cannot be too short-sighted."

"That's why I'm always willing to come here and chat with you young people, not talking about practical theories and details, but just want to sow such seeds in your hearts so that there will be successors on this road."

"Instead of saying that because you can't see hope, you are unwilling to walk on this road."

As soon as Sun Hao's speech stopped, unprecedented warm applause rang out below.

Zhao Junli looked up at Lu Yuan who was still standing: "This professor has something to do."

Lu Yuan smiled and said nothing.

Such an old scientist who devoted his life to practical nuclear physics, who is very rigorous in academic research and work, and can be called the backbone of the people.

It’s just that luck is not good. When the sun goes out, the real nuclear fusion is not done, so the teacher in his previous life should have passed away regretfully.

Yes, if nuclear fusion could come sooner than five years, even if it came sooner than two to three years, humans would not be vulnerable in the face of the disaster of the sun's extinguishing.

Sun Hao stood on the podium, waiting patiently for the applause to stop, and then said, "Yes, this road is difficult to walk. I have been walking for most of my life and haven't finished it yet, but at least I have seen the scenery ahead. So, today I am here, not talking about the difficulties of the road, but only looking forward to the beauty of the future."

As he said this, Sun Hao glanced at Lu Yuan who was still standing: "Student Lu Yuan, can you tell me by the way, what prospects are there in front of us if we can really achieve nuclear fusion?"

This question is a bit big, and it should have been the direction Sun Hao was about to talk about, but Lu Yuan himself was still not frightened because this was his field.

After all, he is Sun Hao's student, and the philosophy of this mentor in his previous life is familiar to me as far away.

Although the past life is far away, we can only look at the second best to work at nuclear power plants for nuclear fission, every scientist who studies practical nuclear physics is not interested in nuclear fusion or has no desire for nuclear fusion.

After all, the person who can pick this crown and this pearl is another Prometheus of mankind and another Suiren.

"Humans will have energy that is close to inexhaustible and inexhaustible."

Lu Yuan said, first giving a conclusion: "The materials for nuclear fusion include almost any substance before iron. Of course, heavy fusion is more difficult, so we can not consider it for the time being, but relying solely on the light fusion of deuterium, by extracting deuterium from seawater, the energy generated by one liter of deuterium in seawater is equivalent to three hundred liters of gasoline."

"To make an inappropriate analogy, that is, once nuclear fusion is realized, it means that oil flows in the oceans of the whole world, and its reserves are three hundred times the volume of seawater."

"You can't calculate that." Sun Hao planned to say Lu Yuan, but this metaphor had already shocked the people around him.

Yes, if humans really have gasoline energy equivalent to 300 times the world's ocean capacity, then when will they be able to consume these energy?

Even if that day comes, humans only need to improve the level of nuclear fusion. After all, after deuterium fusion, tritium and helium are all very high-quality fusion energy sources.

And in the end, there is really a renuclear fusion that only relies on burning stones. At that time, even wandering the earth was not impossible.
Chapter completed!