The bus carried Su Zhe and his entourage back to Lingzhou University of Technology.

Most of the people in the group have gone back to their respective homes.

Su Zhe, Fan Xiaoming, Ning Changsheng, Ning Qiaoqiao, and Bao Zhengyi came to the office of the director of the collision building after having dinner in the self-operated restaurant of the canteen.

The five of them sat around the sofa and chatted over tea.

While chatting, Fan Xiaoming's girlfriend called and informed him that the orbital data of the two asteroids that could collide had been sent by email.

Fan Xiaoming printed five copies of the relevant orbit data, one for each of the five people.

He also prepared a pen and scratch paper very thoughtfully.

Several people smiled, each holding a copy of the orbital data and looking at it.

Half an hour later, the results of the respective calculations came out.

The result is the same as what Wen Minghui, director of the National Astronomical Observatories, said, whether it is the time of the collision or the location of the collision.

"What a pit!" Fan Xiaoming put down the pen in his hand and said, "Judging from the current detection data, if nothing else, these two asteroids are going to collide." ”

"To be honest, the strength of the American Space Agency is still very strong, and it perfectly controlled the probe's impact on the ten-kilometer asteroid, causing its orbit to change as expected, but I didn't expect it......" Bao Zhengyi smiled bitterly.

The email Fan received not only contained the orbital data of the two asteroids, but also the ins and outs of the whole thing.

Three months ago, NASA used a decommissioned probe to hit a 10-kilometer-sized asteroid.

The whole process was very successful.

The asteroid's orbit after impact is exactly the same as the predicted orbit.

After the news of the probe's impact on the asteroid came out, many people around the world expressed concern.

In response, NASA responded by saying that the impact of the probe only slightly changed the asteroid's orbit and would not produce undesirable results.

But as a result, one day after the probe hit the asteroid, the observatories and other institutions tracking the asteroid in various countries found that the asteroid's orbit had changed again.

Through the analysis of the data collected by the track, it was found that an asteroid with a size of several tens of meters hit the asteroid, causing the asteroid's orbit to change again.

The result of this change is that the asteroid of 10 kilometers will collide with an asteroid of 150 kilometers.

"With current science and technology, it's impossible to lock down all asteroids." Fan Xiaoming explained, "Just like the asteroid that is tens of meters in size, it is completely out of the range of the asteroid that is tracked, and everyone has seen it." ”

"As far as the current data is concerned, it is not surprising that these two asteroids are going to collide eighty percent." Ning Changsheng thought for a while and said, "I think all countries will take action, and it is impossible to sit still." ”

Several people smiled and nodded.

After chatting for a while, several people left.

Ning Changsheng and Ning Qiaoqiao went back to rest, and Fan Xiaoming took Bao Zhengyi to visit the positron collider under construction.

Su Zhe sat in front of the computer in his office and typed on the keyboard, and he had to complete the final writing of the summary of mathematics and physics.

It was busy from seven o'clock in the evening to ten o'clock in the evening, and it was finally completed.

After completion, the written knowledge was packaged, encrypted, and uploaded to the data center of the Four Books Society.

After doing this, when Su Zhe was about to find textbooks to study, Fan Xiaoming and Bao Zhengyi came to the office talking and laughing.

The three of them gathered around and chatted about the development plan of the Nine Days Research Center.

……

The next day, Su Zhe, Ning Changsheng, Ning Qiaoqiao, and Bao Zhengyi came to the Lingzhou Institute of Optoelectronics again by car.

It was still Zhang Gaoming who greeted them.

This time, Su Zhe and the others followed Zhang Gaoming to a small conference room.

At this time, there were more than 20 people sitting in the conference room, and these people stood up one after another when they saw Su Zhe and his party coming.

Su Zhe noticed Professor Wen Minghui, director of the National Astronomical Observatories, at first glance when he saw the conference room.

Some of the other people in the room he had met yesterday.

Seeing that everyone had arrived, Zhang Gaoming said with a smile: "This special meeting mainly talks about the deployment of the SS-defense system...... Let me introduce you to you, this is the ...... of the equipment headquarters."

Both Android and Apple are available. 】

There were a total of 29 people in the conference room, including Zhang Gaoming, except for Su Zhe and the others, the others were either the heads of important departments, or the elders of academia and industry.

After the presentation, the big screen in the conference room began to play the "targets" that the SS - defense system needs to defend.

Its defense space is a spherical space centered on the Earth with a radius of one million kilometers.

Individual targets can be as small as low-flying drones and as large as asteroids hundreds of kilometers in space.

Watching the video, some people are surprised, some people are stunned, and some people are lost in thought......

At the end of the video, someone immediately asked whether this goal was too big, and said that with the current situation, it can't be done.

Zhang Gaoming smiled and said, "The goal! Besides, the space targets we defend do not include the airspace of other countries, that is, the space of 100 kilometers above the territory of other countries, and the rest are within the scope of our defense. ”

Everyone nodded.

Some people shouted with a smile, saying that space is so big, there is no need to toss in the earth, we should look at space, and also said that there are resources in space, energy and energy, whether it is to build a space city or transform the planet, it is more promising than rolling up on the earth.

There was a round of applause in the room.

With the goal in hand, everyone began to discuss the feasibility of the goal.

As the morning passed, the result of the discussion was that the goal would be a two-step process.

First, ground deployment.

Second, space deployment.

At this stage, the main focus should be on ground deployment.

After the completion of the deployment, it can ensure the safety of the national airspace, whether it is from the atmosphere or from outside the atmosphere of the threat can be effectively intercepted.

The completion of the ground deployment means that the "home" will not be threatened.

Then there's the space deployment.

With the current level of science and technology, space deployment has many difficulties.

The most critical issue is the issue of space capacity.

This step is not too rushed, you can take it slowly.

……

After lunch, everyone returned to the conference room.

Everyone gathered around Su Zhe to ask whether the heavy photon aerospace engine described in the paper "On the Manipulation of Atoms by Electromagnetic Waves" could be realized and when it could be realized.

Su Zhe did not answer directly, but said that the heavy photon aerospace engine mentioned in the paper is just a concept.

Hearing Su Zhe say this, everyone was disappointed.

Then the crowd discussed the inefficiency and high risk of space rockets.

It is said that there are endless resources and energy in space, which can be seen, but cannot be exploited.

As they talked, they talked about Europa, they talked about Proxima Centauri, and finally they talked about Europa and Europa.

Everyone knows that these two newly discovered satellites have a lot of gold, iron and other metals on them, and they also know that the metal resources of these two satellites are exposed in space.

Relatively speaking, these metal resources are very easy to mine.

In the afternoon, the special session resumed.

Began to talk about the details of the deployment on the ground.

"When you think about ground deployment, you should consider the factors of energy and computing power, after all, the SS-defense system is highly dependent on computing power and energy, in fact! It depends on one point, that is, energy, and you must know that computing power also depends on energy. Zhang Gaoming reminded with a smile.

After Zhang Gaoming finished speaking, a video of the country's energy distribution began to play on the big screen.

It is easy to find from the video that whether it is the northeast, east, or southeast, these places have energy supply capacity, but the consumption is also large.

The energy supply in the central part of the country is also not very strong.

The better places are the west and northwest.

There are two scenarios to consider for ground deployment.

One is in peacetime, when the beam weapons in the SS-defense system will not be used, and the energy consumption is the four-dimensional optical positioning technology system in the SS-defense system.

The other is an emergency, the SS - defense system is fully open, and the beam weapon - death light once used, especially on a large scale, the amount of energy required will be heavenly.

At the end of the video, everyone began to discuss.

Based on various factors such as energy and strategy, they discussed a preliminary plan for ground deployment.

The area of the country is divided into 3,000 small cells, each of which is equipped with a subsystem of the SS-defense system.

The SS-defense system subsystem refers to a complete set of four-dimensional optical positioning technology system and beam weapon-death light attack system.

Then, depending on the importance of the region, equip different levels of SS-defense system subsystems.

According to Zhang Gaoming.

The SS-Defense System subsystem is divided into four levels, including Premium, Level 1, Level 2, and Level 3.

Among the four levels of SS-defense system subsystems, the four-dimensional optical positioning technology system is similar, but the difference is the detection range.

But the biggest difference is in the beam weapon - the Dead Light Attack System.

Level 3 Beam Weapon - The Death Light Attack System has the lowest upper limit of attack power, which shows the caliber of the Death Light Launcher.

The Death Light Attack System, a special beam weapon, has the highest maximum attack power, and its death light launcher will have a caliber of 10 meters, and the caliber will increase as technology advances.

According to theoretical calculations, a dead light launcher with a caliber of ten meters can directly destroy an aircraft carrier.

The disadvantage is that it consumes a lot of energy.

"Director Su! We don't know much about the optoelectronic chips you made, and we don't know how stable the optoelectronic chips with the 0.5nm process are? How does it perform? Can it be used with the SS-Defense system? Zhang Gaoming looked at Su Zhe and asked multiple questions at once.

Su Zhe smiled and said affirmatively: "The stability of the 0.5nm optoelectronic chip is very good, its performance is more than ten times that of the chip of the same specification, and it is more power-saving, and there is no problem at all when used in the SS-defense system." ”

"Ten times more, that's great." Zhang Gaoming said with a smile.

In the conference room, hearing Su Zhe's answer, some people were very determined, and some people were surprised.

Obviously, some of these people know about optoelectronic chips, and some of them are hearing about it for the first time.

"Director Su! When will this 0.5nm optoelectronic chip be mass-produced? Zhang Gaoming asked with a smile.

"Three months at the earliest!" Su Zhe replied with a smile.

"Good! It's ......," Zhang Gaoming shouted while applauding.

The crowd applauded.

"Director Bao! I wonder what will be the production of femtometer-class lenses in the future? SS-defense systems, whether it is beam weapons-dead light, or four-dimensional optical positioning technology systems, require a large number of femtometer-level lenses, when will you be able to mass produce them? Zhang Gaoming looked at Bao Zhengyi and asked.

"We need a one-year construction period for multiple synchrotron radiation installations, and a year for large-scale mass production." Bao Zhengyi replied.

"One year! Not long, at all. Zhang Gaoming nodded.

Some people have expressed their opinions.

"I know that the synchrotron radiation device, at normal speed, the construction period is three or four years up, and the construction period of one year is very fast."

"It also takes time to build the supporting facilities of the SS-defense system, and one year is just right."

"We don't need to be in such a hurry, it would be good to complete the ground deployment of the SS-defense system in five years, and deploy it nationwide, of which the SS-defense system subsystem is at least three thousand ......"

……

Suddenly, Professor Wen Minghui, director of the National Astronomical Observatories, stood up and said with a serious face: "No! Five years is too long, we need to complete the ground deployment of the SS-defense system in a year, no...... One year is still too long, and we have to do it in eight months. ”

"One year...... Eight months...... That's impossible! Zhang Gaoming shook his head and said.

"How could it be done in such a short time, it was impossible."

"Even if the infrastructure of the SS-defense system can be completed, the corresponding equipment will not be built."

"There's no need to be in such a hurry! We can take our time. ”

……

Everyone, you and I are talking word by word.

When Wen Minghui heard everyone say this, he became even more anxious, and said with a worried face: "Comrades! Didn't you know that two asteroids would collide three million kilometers from Earth in four months? Think about it, if these two asteroids collide and go in the worst direction, then our earth will suffer, and it is very likely that the end of our humanity will come. ”

"Yes!" Zhang Gaoming nodded, "But the situation is not so bad!" Even if two asteroids collide, those debris will not fall to the earth, and even if it comes towards our earth, we still have the moon in our way, and it is difficult to threaten humanity. ”

Everyone nodded.

"O comrades! We can't be so optimistic, we're going to prepare for the worst, we can't gamble with the fate of humanity. Wen Minghui shouted, "Let me tell you, other countries have made some preparations, but those preparations are of little effect, and we have the ability to stop them...... If it had been before, I wouldn't have said anything, anyway, we didn't have that ability, and the result was the same whether we did it or not, so we could only pray secretly, but now we are different, we have that ability, we have the ability to prevent disasters from happening. ”

"This ......" Zhang Gaoming hesitated.

Everyone looked at Wen Minghui.

"I know what everyone thinks, they all think that an asteroid hitting Earth is unlikely, but we have to prepare for the worst." Wen Minghui explained, "Besides, no matter what, we have to deploy the SS-defense system, why not hurry up, for the sake of all mankind, we should also complete the deployment in the shortest possible time." ”

Zhang Gaoming thought about it and looked at Su Zhe.

82 Chinese Net