Chapter 818 Perelman’s visit

This is a win-win situation, not to mention that the power of decision still belongs to him, so Chang Haonan naturally has no reason to disagree.

But there is a key question.

"Professor Meng, from what you just said, the two satellites should not have been launched yet. Is there a specific planned time?"

Chang Haonan asked:

"You know, my tasks here are also quite heavy. I can't just wait for the satellite to go up and then start doing research."

Meng Zhenyuan quickly waved his hand, indicating that there was no need to wait for a long time:

"According to the earliest plan, the Ziyu-01 02 star should be launched no later than the end of this year, and the 2002 star should be launched no later than the end of ."

"But at the end of last year, the National Space Administration temporarily adjusted its plan and arranged the launch of the two satellites in February and April this year respectively. At that time, together with the already-launched Ziyuan-01 satellite, they will form a revisit cycle of about 20 Hourly remote sensing satellite system.”

"However, specifically for our research, only the Ziyu-01 satellite is equipped with hyperspectral detection equipment. In addition, this satellite is not designed with a side swing function to ensure imaging accuracy, so the revisit period is still almost a month."

Chang Haonan's eyes lit up.

If the 01 satellite can be launched in February, then the first batch of remote sensing data should be released by March at the latest.

Although in geology, neither aircraft, satellites nor numerical calculations can truly replace field surveys, there is no doubt that they can greatly improve the overall surveying and mapping efficiency.

Sharpening the knife does not waste time chopping firewood. Anyway, there will be a new year in between. Waiting until March actually won’t lose much time.

However, the other party's answer still puzzled him:

"It's so far in advance... If the satellite is launched according to the original plan, will the satellite, especially the 02 satellite, have to wait on the ground for more than a year?"

"Uh……"

Hearing Chang Haonan's question, Meng Zhenyuan touched his nose:

"Mr. Chang, you may not know this. On the one hand, due to the frequency of rocket launches, it is not particularly uncommon for satellites to have to wait several months or even longer after completing factory inspections. On the other hand, the two Ziyuan No. 2 The satellite was indeed rolled off the production line much earlier than originally planned by using some imported parts.”

"So that's it..."

Chang Haonan nodded:

"It seems that the country has put a lot of effort into cooperating with the market-oriented operation of the West-East Gas Pipeline..."

He had known before that the West-East Gas Transmission Project was part of China's systemic energy security strategy, but it was indeed unexpected to modify the space launch plan specifically for this purpose.

However, this was a misunderstanding on his part.

This time it was Tang Lintian who explained:

"The early launch of these two satellites is not entirely for the West-East Gas Transmission Project. According to the national plan, there are almost six or seven strategic-level projects that will be launched or started in the next few years, each of which requires a large number of geographic information systems ( GIS) data.”

"If we rent remote sensing satellites from foreign countries, not only will the price quoted by others be high, we will also need to provide on-site measurement data for verification and comparison, and we will even be asked to grant them geographical surveying and mapping rights!"

Speaking of excitement, Tang Lintian knocked on the table with two fingers, and there was some anger in his tone:

"This is part of national sovereignty, how can it be opened to outsiders casually?"

"In comparison, just using some imported parts on satellites is not a big deal."

At this time, Meng Zhenyuan next to him also intervened:

"Actually, the key is that in the past year or two, due to various reasons, we have been able to buy some parts that were not available in the past. If we had left it in the past, even if we were willing to pay for this, we might not be able to spend it."

This is quite true.

Take France, which sold the hyperspectral detection equipment. Although it is already a relatively active country in Western countries in exporting technology to China, when it comes to critical moments, it will often restrict exports in the name of "affecting national security." set.

but now……

That’s ridiculous, you’ve already taken over the power of your next-generation main fighter jet and jointly developed it with us, why are you pretending to be a big-tailed wolf?

So, if someone says that you affect his national security, then you'd better really affect his national security.

……

Cooperation within the same school naturally does not need to be as serious as with outsiders.

Under the witness of Tang Lintian, the two research groups simply signed a cooperation agreement, expressing their willingness to share some of the data generated during the research process, and that was it.

As for the remaining groups, the topics at hand are relatively light in magnitude, and they should just focus on the projects of Chang Haonan or Meng Zhenyuan.

After this matter came to an end, as time passed day by day, it soon came to the end of January.

Although there are other matters at hand that have not been dealt with, Perelman's visit is indeed more important in comparison.

On the one hand, this man was already considered a great figure in the field of differential geometry even before he solved the Poincaré conjecture.

On the other hand, although Chang Haonan is not ready to invest his main energy in the purely theoretical field at the moment, based on his experience over the years, the improvement of [theoretical level] experience and level in the system will be of great help to all types of scientific research work.

Now that his theoretical level has reached LV3, it is very difficult to improve his level by completing ordinary small projects.

Face-to-face communication with a top mathematician is likely to get twice the result with half the effort.

In view of this, Chang Haonan simply went to the airport in person and picked up the visiting team from the Steklov Institute of Mathematics.

To be honest, if Chang Haonan hadn't specifically asked someone to find the other party's information, it would have been difficult for him to recognize at a glance that the man in front of him, wearing a half-worn cotton coat, full beard, and a bit bald, was the famous mathematician Grigory. Perelman.

"Hello, Mr. Perelman."

Chang Haonan stepped forward and shook hands with the other party.

Perelman has been studying in the United States for many years and can naturally understand English.

"It seems that you are Chang Haonan, Professor Chang."

The other party looked Chang Haonan up and down, and then continued:

"Ever since I saw that paper in November last year, I have been wondering what kind of person its author would be. When I met today, I found that it was indeed similar to what I thought."

Although Perelman is indifferent to fame and fortune and has a somewhat eccentric personality, he still looks like a mad scientist.

But this does not mean that he is withdrawn or mean.

In fact, the indifference he usually displays is just because he rarely encounters equally matched opponents.

Therefore, after meeting Chang Haonan, he acted more like a "normal person".

"Let's get in the car first and talk on the road."

Chang Haonan motioned to the other party to the minibus next to him.

Perelman nodded, but before taking a step forward, he looked at the two entourage members standing next to the car door.

Judging from the way the two of them crossed their hands in front of their bodies, they should be the members in charge of security.

"Actually, there's no need to create such a big battle. I'm just an ordinary person who knows a little bit about mathematics..."

He said to the former while following Chang Haonan into the car.

But Chang Haonan's English is not good enough to understand clearly the sentences with Slavic pronunciation and speaking at an extremely fast speed.

So this sentence is conveyed through translation.

After listening, he could only sigh.

Today I met my opponent.

On every level.

Chang Haonan originally wanted to reply: Don't think too much, these people are protecting you just by the way, mainly to protect me.

But while he was hesitating, Perelman had already taken out a notebook from his cotton coat pocket and began to discuss with him the convergence theorem and singular model mentioned in the last email...

The three cars stopped and went all the way, maybe it was during the rush hour, so they didn't arrive at the arranged accommodation until late in the evening.

Before getting out of the car, Chang Haonan was shocked by the greeting team headed by Tang Lintian and consisting of dozens of people outside.

Not to mention Perelman next to him.

The latter can be considered a person who has seen the world, but even in places like MIT, Princeton, and Columbia, he has never encountered such a pomp.

"Chang, I believe that your Chinese nation must be a promising nation."

He put the notebook back in his pocket and looked at the scene outside the window.

"?"

Chang Haonan, who was already a little confused, was even more confused by this out-of-the-way sentence.

He even specifically checked the other person's expression and found that it looked sincere and didn't look like he was being arrogant:

“What does this have to do with the hope of our nation?”

"I have never seen any other place where a mathematician is treated with such dignity."

"..."

Chang Haonan was a little embarrassed.

It is said that after entering the customs, a great scholar would argue for me.

Why is it that someone has already defended me before I entered the customs?

He said to himself that this was just because few big figures in the field of mathematics came to China for academic exchanges in the past, so scholars of your level are already considered extremely rare guests.

Didn’t you see that Tian Gang from Yan University next door asked his grandfather to sue his grandmother in order to invite a relatively famous mathematician to give a report on the platform?

But this is certainly not the case for the American mathematics community where big bosses are everywhere.

The degree of emphasis is naturally different.

And if you don't disappear after proving the Poincaré Conjecture, you will probably experience more grand treatment than this anywhere in the world...