For those who live in this land, recognizing their ancestors is undoubtedly a big deal.

Cultivating genealogy may be relatively rare in the north and cities, but in the south and clan villages, it is undoubtedly one of the most important things.

Based on Xu Chuan's achievements, in some southern regions, I am afraid that when he is elected as an academician of the Chinese Academy of Sciences and the Chinese Academy of Sciences, some people in the village will mention such a thing as rebuilding the family tree.

The traditional customs of Xujia Village are not so serious, and this year's family tree repair has little to do with Xu Chuan, but the year is up, and it's time to re-record it.

However, in the past two years, there has been a great scientist like him in the village, an academician of national treasures, and it is naturally impossible to bypass the rebuilding of the genealogy in the village.

Because in the past, the village elders organized a lot of work together, but this year, a lot of attention has been paid to it.

Some elders felt that some of Xu Chuan's honors and achievements should be recorded in the family tree, while others felt that it was inappropriate.

After all, genealogy is generally for the living, only a name, relationships and the like, and life deeds are generally written by the deceased.

Therefore, some of the old people in the village felt that this was the glory of the village and should be written, while others felt that it was a taboo and could not be written.

For Xu Chuan, he didn't really care much about these things.

However, his roots are in this village, and he is still willing to do things that can bring some honor and pride to the village.

On the other hand, since he himself had no opinion, the old people in the village were naturally happy.

After all, there is such a great man in the village, which is definitely worthy of the pride of the whole village, and it is also worthy of being recorded in the family tree for future generations to learn and admire.

As for taboos or something, in fact, this is placed in some clan ancestral halls in the south, and it is not a matter of recording the lives of outstanding people, and it can even be said to be a matter of pride.

After all, only those who have made great contributions or careers and are famous are eligible to be on this kind of 'lineage', and ordinary people are not qualified to be on it.

After resting at home for two days and spending some time with his parents, Xu Chuan re-embarked on the high-speed train and returned to Jinling.

In the case of small controllable nuclear fusion reactors and aerospace engines, their optimization and testing are undoubtedly the focus.

However, the Energy Research Institute and the Aerospace Research Institute are responsible for these two major fields, and Xu Chuan does not have many things to deal with personally.

On the other hand, after Academician Chang Huaxiang took over the space shuttle-related projects and projects, this series of development has also entered the right track.

Although he has never had experience in building a space shuttle in China, this old gentleman's lifelong learning is related to the aerospace industry, and he knows very well what conditions a space shuttle needs to have to complete a space mission.

Especially after the power system has been solved, the design, construction and assembly of the space shuttle are far less than the traditional direction, such as the traditional space shuttle heat insulation tile, orbiter and other extremely demanding equipment and parts can be put on the new space shuttle can reduce a lot of requirements, which also makes its design difficulty reduced a lot.

When the manned space project was going smoothly, Xu Chuan finally had some free time to return to the campus, thinking of the few students he had left behind.

Because of Cai Peng's graduation, the four new students he admitted last year are now basically in a 'semi-free-range' state.

The reason why it is said that semi-stocking is not fully stocked is because Gu Bing and Cai Peng, who graduated before, are currently working as mathematics professors at NTU, and can replace him to guide some study things.

After returning to campus, Xu Chuan's life was much easier.

Go to class every day, and then instruct a few primary school students, and the rest of the time is basically free to use, either to pay attention to some cutting-edge developments in the academic world, or to study the unity of the three forces of strong and weak electricity.

The days went by like this, and in the blink of an eye, the time came to the middle of November.

On the weekend of the week before the light snow festival in China, NASA held a press conference to reveal a lot of things.

The first is the first image taken by the James Webb Space Telescope (JWST)!

The James Webb Space Telescope is a space telescope for infrared observation jointly developed by NASA, the European Space Agency and the Canadian National Space Agency, and is the successor to the Hubble Space Telescope.

On December 25, 2021, the Webb telescope was launched, and Xu Chuan paid attention to it at that time.

Because it is the most powerful space telescope ever built by mankind, its launch carries with it a mission to reveal the origin and evolution of the universe, find clues to life, and explore unknown mysteries.

However, the follow-up scientific research equipment has been in a state of debugging since the end of the day.

It wasn't until the following year, in mid-July of this year, that it officially began its work, taking the first photographs for scientific research.

Now that the first batch of photos has finally been released, even as a competitor, Xu Chuan admires its success.

In particular, those scientists and engineers who participated in this project have overcome countless difficulties and challenges with their wisdom and creativity, and contributed a time machine and life detector to mankind.

The only regret is that the most powerful telescope in history may not have a long lifespan.

Because it is located at the Lagrange point L2 about 1.5 million kilometers away from the earth, without the protection of the earth, it is exposed to the strong radiation of the sun and cosmic rays, and also needs to face the impact of various tiny meteors and interstellar dust, and its working environment is undoubtedly extremely harsh and dangerous.

In May of this year, the James Webb Space Telescope was hit by about six micrometeorite impacts.

While the damage from five of these impacts was negligible, the sixth caused a piece of the telescope to suffer relatively serious damage.

Although the researchers have minimized the impact by specular angle adjustment, the error cannot be fully compensated.

The damaged mirror surface cannot be replaced because of the distance, which also leads to the existence of errors.

In addition, in order to ensure the low temperature operation of the telescope, it needs to use a huge heat shield to block the sunlight and use refrigerants such as liquid helium to reduce the temperature.

These heat shields and refrigerants are finite resources that cannot be replenished or repaired once depleted or damaged.

It can be said that its lifespan is not too long in theory, which is a pity.

But it has to be said that it is more powerful than Hubble, and the images of the universe taken are clearer, and it can also help mankind understand more about the mysteries of the universe.

For example, through the monitoring and observation of the "cosmic cliff" in the Carina nebula, the Webb telescope revealed the stage of star formation.

Or the exploration of exoplanet WASP-96 b has made it clear that there are significant water vapor and other characteristics in its atmosphere.

In addition, speaking of which, we have to mention the extended application of the Xu-Weyl-Berry theorem he created a few years ago.

NASA scientists have calculated not only the presence of water on this gaseous planet, but also its main atmospheric composition through the extended application of the Xu-Weyl-Berry theorem, based on the data collected by Webb on the exoplanet WASP-96b.

With the combination of space telescope data collection + Xu-Weyl-Berry theorem calculation, it is very likely to become a means for mankind to find exoplanets suitable for human habitation.

The release of the Webb telescope's first cosmic photos was the first thing NASA made public at the event.

The second event is a research project called the DART Double Asteroid Redirection Test.

To put it simply, NASA launched a refrigerator-sized vehicle to impact the asteroid Dimorphos to test whether the impact could change the asteroid's orbit.

And in October of this year, the vehicle successfully hit an asteroid at a speed of 6,000 meters per second, and then, at this press conference, NASA announced the results:

[The impact shortened the orbit of the asteroid 'Dimorphos' by 32 minutes compared to the past.] 】

While the original intention of the operation was to protect the Earth by impacting an asteroid to change its orbit, anyone with a discerning eye could see some other implications behind the experiment.

For example, the idea of using a planetary engine to promote the wandering of the earth in a certain domestic science fiction movie has been indirectly verified and theoretically proved to be feasible.

In addition, the results of this research have also attracted a certain amount of attention in the military field.

If you add an 'engine' to the meteorite, push it to the earth, and calculate the orbit and power, I am afraid that the blow to the enemy country will be devastating.

Of course, this is just some expectations, with the current science and technology, to achieve this step, the success is almost zero, it is better to lose the reality of tungsten rod.

However, judging from this press conference, the two news released by NASA undoubtedly confirm the fact that the United States, especially in the fields of aerospace and scientific research, is still the world's top power, and it can be regarded as a follow-up to the Artemis program.

After all, the Artemis program has a long cycle, and before the spacecraft is launched, the United States and NASA must find some news to keep the people and the world situation confident in the United States' spaceflight.

For Xu Chuan, NASA's press conference, it is worth noting these two reports, and some other Artemis plans and breakthroughs do not mean much.

Compared to other modest news, these two stories made him think of something else.

For example, Betelgeuse, which is more than 600 light-years away from Earth.

In previous years' calculations, Betelgeuse now seems to have progressed to the point of carbon fusion at its core, which, combined with the presence of a star within its hydrogen envelope, seems to cause the core to tear apart at any moment, forming a supernova explosion.

These years have passed, and I don't know how Betelgeuse has developed.

If it can form a supernova explosion in its lifetime, at such a close distance of more than 600 light years, it will definitely bring great impetus to physics, astrophysics, astronomy and other fields.

Even, some things that humans didn't know before may be seen in this supernova explosion.

PS: Make up for the break the day before yesterday, and continue two shifts tomorrow, ask for a monthly pass.