An interview lasted for nearly half an hour.

Originally, in Master Xiong Weizhao's plan, the interview was about an hour, but considering that Academician Xu had to take the high-speed rail back to Jinling, it still reduced a lot of time and erased some problems.

After the interview, Xu Chuan said goodbye to the two of them with his luggage and embarked on the way back.

Standing at the entrance of the Beihai Hotel, Xiong Weizhao looked at Xu Chuan's back as he left in a vehicle, feeling a little moved.

After working at CTV TV for so many years, I have interviewed and met countless scientific researchers, scholars and even politicians, but this is the first time I have seen such an outstanding person as the one in front of me.

There are many scholars at the academic level, but like this one, a scholar who can go to the Heavenly Hall and directly affect the entire country and even the global development. Today, this society is probably the only one.

Looking at the vehicle's departure, he suddenly turned around and looked at Sun Yutong standing beside him, and smiled kindly: "Yutong, I didn't expect that you have such a good relationship with Academician Xu. Remember to contact me more in the future."

Sun Yutong looked at the departing vehicle and looked at the Director again. She felt a little confused about what she was thinking.

connect?

She didn't have any contact information.

A few years ago, when she first went to Sweden to attend the Crafford Award, she added the contact information of Academician Xu during the interview.

But for a few years, apart from some polite greetings from the festival, there was no connection between the two.

To be honest, as a girl, it is normal to consider her partner when she is at her age.

However, her eyes seemed a little too good.

Before she could attack, the opponent had already reached a height that she was out of reach.

If she wants to try again, she may not think she can have the courage.

......

It was already quite late to return to Jinling from the capital.

After taking a shower, Xu Chuan wiped his hair and sat in the study.

Although I haven't come back for several days, the villa is still clean and there is no dust at all. Perhaps when he is away, someone will come here to clean up every once in a while.

After turning on the computer, he clicked on the documents that recorded various work before, recorded recent related matters, and then began to make arrangements for the next work and research direction.

Now that controllable nuclear fusion technology has been achieved, he has planned the next goal, but overall it is still relatively rough.

As for now, it's time to make a new plan for yourself.

It's almost enough to rest for such a long time.

After all, the brain of a scholar, or a scientific researcher, cannot be abandoned for too long.

After thinking for a while, he opened his own notebook and wrote down the terms mathematics and aerospace engine on it.

Mathematics is his own path.

No matter what, even if controlled nuclear fusion technology is implemented, Xu Chuan is not ready to give up the field of mathematics.

Instead, over the next few years, he will focus more on mathematics.

Although he has solved two millennial problems, he still has many areas that he has not yet set foot in and needs to learn.

As for aerospace engines, there is no doubt that this is prepared for a breakthrough in aerospace technology.

After the implementation of controlled nuclear fusion technology, the pace of moving to the sky is a must.

But judging from the current situation, there has not been much progress in aerospace technology, whether it is China, the United States, the EU and other countries.

When it comes to the peak of space, it can even be attributed to the famous "Cold War" of the last century.

In that turbulent but full of competition, aerospace ushered in the most glorious moment in human history.

The launch vehicle, unmanned launch, manned moon landing, space shuttle, Saturn 5 superheavy launch vehicle... a series of miracles were created at that time.

But now decades have passed, and the aerospace technology of various countries is still typing and patching it up. Not to mention moving forward, maybe it may even go backwards.

As early as decades ago, Sumi had achieved manned moon landings, but decades have passed, manned moon landings are no longer under the plans and arrangements of various countries.

Of course, this is also related to the fact that aerospace engine technology has been unable to make any breakthroughs.

In many science fiction novels or science fiction movies, the aircraft can always provide power for the entire interstellar journey.

But in reality, the engine technology of rocket thrusters cannot achieve this at all.

Compared to exposed propellant tanks, the chemical rocket's engine looks small, but it has a big appetite.

"Eat too much, but not very efficient at working."

The massive amount of energy that traditional fossil fuel engines need to swallow up is only effective in providing short-term power - the stored fuel is quickly used up, and the thruster is immediately thrown away as garbage.

Most of the fuel of chemical rockets is used to get rid of Earth's gravity, while the remaining one is used to drive the rocket's "space gliding". The rocket flies to its destination only by relying on inertia.

For interstellar flight, this kind of engine is obviously not capable of doing so.

Take the famous "Saturn 5 launch vehicle" as an example.

It is a super heavy launch vehicle developed by the United States and is known as the strongest rocket system in history.

However, as high as 110.6 meters, 10 meters in diameter and thrust as high as 3,408 tons, it can only send 118 tons of items into low-Earth orbit. If it is to be sent to the lunar orbit, the load will be drastically reduced to 45 tons.

The reason is that a large part of the nearly 3,500 tons of thrust generated by the rocket is used to "tork" the rocket itself and more than 2,000 tons of fuel.

Its "specific impulse" is not high, only more than 300 seconds, indicating its inefficiency in propulsion.

This is why a person of very small mass must be sent to space but a huge rocket must be used.

If this traditional fossil energy rocket is still used as a carrier, I am afraid that aerospace technology will not be able to make much breakthrough.

So Xu Chuan wanted to focus on researching this aspect and see if he could find a new path for aerospace engines.

......

Sitting in front of the computer, Xu Chuan was thinking about the new path of the aerospace engine, and before he knew it, the night was getting deeper.

When the moon climbed overhead, the cell phone on the table rang.

Xu Chuan picked up his phone and looked at it. It was his newly appointed life assistant who sent it over.

"Academician Xu, it's already very late now. If you don't have any urgent matters, it's time to fall asleep."

Looking at the message, Xu Chuan's mouth moved and looked at the time again.

Well, it was already eleven o'clock in the evening before I knew it.

Shaking his head, he put down his cell phone, sorted out and saved the information on the computer, and got up to wash.

Is this the wonderful use of a life assistant?

What is the scientific researcher who cannot achieve freedom of staying up late?

...........

After a slept peacefully, Xu Chuan came to Nanda the next day.

Now that controllable nuclear fusion technology has been implemented, as a full professor at Nanjing University, he should come back to class and take students.

Pushing open the office door, Xu Chuan walked in. Cai Peng, who was studying in the office, turned his head and took a look, and stood up quickly in surprise and excitement.

"Professor, you are finally back!"

A sentence finally made Xu Chuan cough slightly unnaturally. Facing Cai Peng, he was probably a little embarrassed.

After all, it has been almost two years since he was admitted as a student, and he has not taught him much. Before, he was busy with the controllable nuclear fusion field, so Cai Peng basically threw it to Gu Bing and Amelia to teach.

On the opposite side, Cai Peng might have realized that he had said the wrong thing, so he quickly skipped the topic and then congratulated: "Professor, congratulations on solving the problem of controlled nuclear fusion this century!"

Xu Chuan: "Thank you, why didn't you see Amelia?"

Upon hearing this, Cai Peng's expression was a little strange: "Professor, in February this year, didn't you arrange for her to go to CERN for an internship? She hasn't come back yet."

Xu Chuan coughed, and then remembered that because he was busy with controllable nuclear fusion before, he was afraid of delaying the students, so he arranged for Amelia to go to CERN to practice.

Amelia studied mathematics and physics. After solving the Bloch conjecture, she graduated from him with Gu Bing.

However, Gu Bing chose to be a mathematics professor at Nanyang University, while Amelia was more talented and chose to learn in-depth about mathematical calculation of physical particles from him.

This is a course that requires the combination of practice and theory. China cannot provide great help in this direction for the time being, so he sent Amelia to CERN and asked his mentor Edward Witten to help take care of it.

Then Cai Peng was left behind at the school, either by himself or by studying with Gu Bing.

Speaking of this, he is quite sorry for these students and spends most of his time in stocking mode.

After coughing lightly, Xu Chuan said, "I will have enough time to teach you next. I hope you have not fallen behind in your homework in the past two years."

After hearing this, Cai Peng suddenly felt a little bad.

From the mouth of Senior Brother Gu Bing, he knew that this tutor dared to be the master of student graduation thesis with world-class problems. Could it be that he would have to solve a world-class problem before he could graduate from him?

If this is the case, it would be better to kill him, maybe that's easier?

Xu Chuan didn't care about the changing expression on his student's face, and then asked, "I remember you were learning the field of differential equations later, right?"

Cai Peng quickly replied: "Yes, professor."

Xu Chuan nodded, without saying much, pulled out A4 paper from the drawer of the desk. After thinking for a while, he started writing:

"Suppose K is a zero-eigenic differential domain, and ?\u003d{δ1,···,δm} is its differential operator, and L\u003d Khη1·····ηni is the differential domain generated by K and the finite elements η\u003d{η1,···,ηn}."
To be continued...