After the laser weapon test, Ye Fei returned to Chang'an University of Electronic Science and Technology to continue his cryptography research.

The laser laboratory of Zhonghu University has not stopped, and continues to research ground-based anti-satellite laser weapons at this stage and continue to optimize it.

It has been two and a half months since Ye Fei left Chang'an University of Electronic Science and Technology, and before that, he had been staying at Zhonghu University.

He walked into his group's research room, summoned his researchers, and said, "Where is the experiment?" ”

A team member reported: "Team leader, with the help of your formula, our research speed is very fast, and we are almost completing the classic implementation of the SM4 algorithm S box. ”

There are four major steps in the theoretical part.

The classic implementation of the SM4 algorithm S-box is the last small step of the first big step.

When you complete this research, you will have the knowledge to complete the research.

That is, the most basic part of the theory is about to be completed.

And this part is the preparatory stage of the theory, so the pace is a little slower.

After that, the research will be much faster.

Ye Fei nodded slightly, he was quite satisfied with the speed of this research.

"What about the rest of the group?" he asked. ”

"Team leader, with the help of your formula, the rest of the group is also researching very quickly, about the same speed as our group's research."

Everyone sighed in their hearts that Ye Fei was driving the entire cryptography research with his own strength.

It's really too strong.

They never thought that there would be someone like Ye Fei in Xia Kingdom.

In the past, they felt that Academician Nan Guodong and Professor Cheng Ji'an, who came back from Stanford University, were very strong.

But now it seems that they are not as good as Ye Fei.

Ye Fei nodded in his heart, from now on, the preparatory stage of cryptography research is about to end, and he has begun to enter formal research.

"If it goes well, we may be able to complete the research by the end of this year," he said. ”

He looked at his fellow researchers and said, "If you have any questions about your research, you can ask me now." ”

"Team Leader ......" Soon, his researchers began to ask Ye Fei about research questions.

Half a day later, Ye Fei ended their inquiry.

At this time, it was time to get off work, and Ye Fei walked out of the Information Resources Research Center.

"Professor Ye!" At this time, someone called him behind him.

Ye Fei turned around and found that it was Academician Nan Guodong calling him.

Ye Fei smiled: "Academician Nan, is there something wrong?" ”

Nan Guodong walked up to Ye Fei and said, "When did you come back?" ”

"Just came back."

Nan Guodong said: "I don't think you seem to have entered the math club yet!" ”

"Hmm!" Ye Fei nodded: "I didn't go in." ”

"With your ability, you should have gone in a long time ago, why haven't you entered it yet?"

Ye Feidao: "This is mainly because I am now an honorary member of the number theory group, which is a subordinate organization of the Mathematical Society. ”

"According to the regulations, I joined the Mathematics Society, and I was also an individual member for the last time."

"But individual members can't take the initiative to apply for admission to the Mathematics Society, they can only invite me to the Mathematics Society."

Nan Guodong said: "I see. ”

He was puzzled again: "The Mathematics Society has never sent you an invitation?" ”

"Nope!" Ye Fei shook his head: "I don't know what the Mathematics Club thinks, when I was at Zhonghu University, many teachers asked me why I didn't enter the Mathematics Club, and I didn't know how to say it every time." ”

After speaking, he smiled self-deprecatingly: "The math club didn't invite me, and I can't lick my face and beg the math club to invite me!" ”

Nan Guodong frowned and said, "I will help you ask the Mathematics Society." ”

Ye Fei's eyes lit up and said with a smile: "Then it's troublesome Academician Nan." ”

"It's fine!" Academician Nan shook his head: "It's a matter of effort." ”

Magic City!

Yang Yonghai is a retired cadre, and his biggest hobby is observing the starry sky, and he uses an astronomical telescope to observe the starry sky every night.

That night, he was observing the starry sky, when suddenly he let out a startled sigh.

"Huh? Meteorite? ”

He saw a meteorite with a yellow tail flame and saw that it was flying in the direction of Earth.

"This meteorite is quite big, it should be the size of a football ball!"

He shook his head with a wry smile and said, "Some of the observatory is busy, but I don't know which country this meteorite will fly to." ”

His astronomical telescope is not very accurate after all, it is just an astronomical telescope for amateurs.

In his eyes, the meteorite was the size of a football ball, but in fact he was the size of a football field.

If a meteorite of this magnitude were to fall on Earth, it would instantly produce the energy of 178 million kilograms of TNT explosives, equivalent to nearly eight atomic bombs.

Such a powerful energy, wherever it falls, it will be destroyed in an instant, and no living thing exists.

Kyoto, Astronomical Observatory!

On one wall hangs a display that occupies an entire wall, showing the meteorite's trajectory.

Below are rows of computers, many people sitting in front of them doing quick work.

In front of the display stood an eighty-year-old man with white hair, who was looking at the display with a serious expression.

"Mr. Yu!" The assistant walked up to the side and said, "The division of the weapons department. Zhang Liyu is here. ”

"Let him come."

"Okay."

Soon, the assistant came over with Li Yu and followed Li Yu's assistant behind him.

"Mr. Yu!" Li Yu bowed his head and said respectfully.

Yu is always the treasure of Xia and one of the founders of modern astrophysics in Xia Kingdom.

"Li Yu, now a meteorite the size of a football field is about to hit the earth, if it is going to fall to the Xia Kingdom, I want you to strike at the right time and blast it into slag the size of your index finger."

"A meteorite the size of a football field?" Li Yu looked up and said in astonishment.

He has only seen meteorites the size of a football field in movies, and there was once a movie called Doomsday Escape, which was a meteorite the size of a football field that hit the earth and destroyed the entire city.

Li Yu asked again: "Such a big meteorite exploded into the size of an index finger?" ”

"Yes, what's the problem?" Mr. Yu said: "I'm not discussing with you, I'm ordering you, this is a crisis, if you don't handle it well, many people will die." ”

"This ......" Li Yu was very embarrassed.

They also destroyed meteorites in the past, but the largest of those meteorites was only four or five meters long and wide.

It's easy to destroy such a meteorite, and when it enters the Earth's atmosphere, a single shell can do it.

Not to mention blasting it into the size of an index finger, it is directly bombarded into powder.

But a meteorite the size of a football field blasted into index finger-sized shards, making it almost impossible to do so.

The larger the volume, the harder it is to blast into slag.

In addition, meteorites carry very powerful energy on their own, and the larger the volume, the greater the energy they carry.

The energy carried by such a large meteorite itself is the energy of eight atomic bombs.

So, it has to be something more energetic than it.

And when the two sides bombard, they will also produce very strong energy.

Therefore, it is necessary to bombard over no man's land.

Even so, in the moment of a counter-hit, it is easy to produce debris the size of a football.

If a piece of debris the size of a football breaks off the flight path and flies towards a place where there are people, it is a disaster.

"Li Yu!" Mr. Yu said: "Is there a problem?" ”

Li Yu took a deep breath and said, "I'll try my best." ”

He was bitter in his heart, and he didn't know how to do it.

"Mr. Yu!" At this time, a person sitting in front of the computer suddenly stood up and said loudly: "The data is out." ”

"Debrief!" Mr. Yu.

"The meteorite is now 3664605 kilometers from the Earth, travels at a speed of 35 kilometers per second, and will fly into the Earth's atmosphere in 29 hours, 5 minutes and 3 seconds."

"Will you come to Xia Kingdom?" Mr. Yu asked.

"Yes!"

Mr. Yu clenched his fists tightly, this was the answer he didn't want to hear.

If you come to the Xia country, then the Xia country will face this crisis.

"Where did it fall?"

"Demon Capital!"

"What?" Mr. Yu staggered back two steps, and the whole person instantly became much haggard.

"Mr. Yu!" Li Yu quickly stepped forward to support Mr. Yu.

Mr. Yu broke free of Li Yu and waved his hand: "I'm fine." ”

The magic capital is the financial center of the Xia Kingdom, and the meteorite falling to the magic capital will have a huge impact on the magic capital.

If the magic capital is affected, the country's economy will also be affected.

Several central cities in Xia Kingdom, he didn't want to be affected by this disaster.

Mr. Yu looked at Li Yu solemnly and said, "Li Yu, I am not asking you to blast the meteorite into the size of your index finger now, but to blast it into powder, and if you don't have any effect on the demon, you will blast it into powder." ”

"This ......" Li Yu felt bitter in his heart.

How is this possible!

It is very difficult to bomb into the size of an index finger, let alone into powder.

Moreover, the meteorite carries such a powerful energy, and the bombardment of both sides must produce a strong energy.

If it doesn't have an impact on the magic capital, that's even more impossible.

Mr. Yu said: "I know it's difficult, but I'm still the same sentence, I'm not informing you, I'm ordering you to do it." ”

"Do you understand?"

Li Yu said with a bitter face: "Mr. Yu, I also want to do it, but I really can't do it!" ”

Mr. Yu said: "If you can't do it, you have to do it, think of a way to see what weapons can do it." ”

"I can't do it with any weapons!" Li Yu shook his head helplessly.

If there were such weapons, it would be very unscientific, but metaphysical.

How can there be such weapons in the world!

The assistant next to him said, "Mr. Li, have you forgotten the latest weapon?" ”

"The latest development?" Li Yu looked at him suspiciously and asked, "What weapon?" ”

He is the director of the Arms Division though. Zhang, but there are too many weapons developed in the country every year, and it is impossible for him to understand all the weapons.

A lot of weapons, he just glanced at the names, and then forgot about them.

"Ground-based anti-satellite laser weapons!"

"Ground-based anti-satellite laser weapons?" A hint of surprise flashed in Li Yu's eyes, he knew this weapon.

When this weapon appeared, it caused a great sensation throughout the Weapons Division.

In terms of energy, one microsecond can launch 4 trillion energy, which is equivalent to 9.5 TNT atomic bombs with a yield of 1,000 tons.

"Okay, just use it, the energy of the laser weapon won't have any effect on the demon capital."

"Got a solution?" Mr. Yu asked.

"I thought of it." Li Yu said with a smile: "Recently, the laser laboratory of Zhonghu University has newly developed a ground-based anti-satellite laser weapon, which is very powerful. ”

"The power of 9.5 atomic bombs can burst out in a microsecond, and if two ground-based anti-satellite laser weapons are launched at the same time, there will not be even slag left in the meteorite."

Mr. Yu nodded with satisfaction and said, "Then please leave it to you." ”

Li Yu said: "This is what I should do. ”

A day later!

Li Yu looked at the display screen, and in ten minutes, the meteorite entered the earth's atmosphere.

At this time, countries around the world are watching this matter.

After calculations, all countries found that it seemed that Xia Guo could not deal with this crisis.

Many countries have sweated for the Xia country.

"Here we are." Mr. Yu said suddenly.

Li Yu took out the satellite walkie-talkie and said, "Ready, aim, launch!" ”

A huge meteorite carrying a yellow tail flame enters the atmosphere.

But as soon as he entered the atmosphere, a blue light streaked through.

With a bang, the meteorite disappeared.

North Beauty, Observatory!

A group of people stood in front of a large display screen showing the fall of a meteorite.

Suddenly, the meteorite disappeared.

"What about meteorites?" The crowd was in an uproar.

"yes, what about meteorites? How did it disappear? ”

"God, did the meteorite cross over?"

"What the hell is going on?"

“……”

The middle-aged man in the lead scolded: "Quiet! ”

After everyone quieted down, the middle-aged man said, "Switch back to the picture just now, and slow down ten times." ”

"Yes." There is humanity.

Soon, the footage cuts back to the stage where the meteorite enters the atmosphere and slows it down tenfold.

But they still didn't see how the meteorite disappeared.

"Ten times slower!"

"Ten times slower!"

When the picture slowed down a thousand times, they saw a blue light coming from the ground, streaking across the meteorite.

Then, the meteorite was instantly gone.

"This ......" everyone looked horrified.

After a while, the middle-aged man said in horror, "What is this?" ”

"Check, I want to know what the hell this is."

England, Observatory!

Many people looked at the screen and exclaimed, "Oh God, what the hell is that blue light?" ”

"Check, see what the hell this is?"

At this moment, as long as there are satellites in the world, all countries have seen a blue light that destroys the meteorite, and there is no scum left.

Everyone could see that this was a very powerful weapon.

With the power of nearly eight atomic bombs from meteorites, they were destroyed in an instant.

Then the power of blue light is at least the power of fifteen atomic bombs.

Moreover, the speed of this weapon is very fast.

Powerful and fast.

Such a powerful weapon, all countries do not even know about it.

Summer Country, Kyoto, Observatory!

Many people stood in front of the display and watched the meteorite disappear in an instant.

Everyone was dumbfounded.

Li Yu said in surprise: "My God, the power is so powerful. ”

Although he knows about ground-based anti-satellite laser weapons, he only knows the data, and he has not seen the specific power.

Now that he knows, it's really too strong.

"That's too strong, isn't it?" Li Yuxin said: "Such a strong weapon is definitely a national weapon. ”

He said excitedly in his heart: "Okay, good, with such a heavy weapon, the safety of the country has another layer of protection." ”

"Moreover, this weapon is not like nuclear weapons, which will produce nuclear contamination when they explode, and this one is completely absent."

"And it's very fast, and a nuclear weapon needs to be delivered by an airplane."

"Also, it can hit not only the ground, but also the sky, while nuclear weapons can only hit the ground."

Mr. Yu muttered, "This is the end?" ”

He looked at Li Yu and said, "That ground-based anti-satellite laser weapon destroyed the meteorite?" ”

"yes!" Mr. Yu smiled: "Haha...... I didn't expect it to be so easy to solve. ”

"This weapon was developed by Zhonghu University?" Mr. Yu asked.

"Yes!"

Mr. Yu said in disbelief: "Zhonghu University seems to be just a low-rate 985, they have the ability to develop such a powerful weapon?" ”

"That's about one person." Li Yu said with a smile.

"Oh!" Mr. Yu said with interest: "Who is it?" ”

"Ye Fei!" Li Yu said: "The mathematical genius of the School of Mathematics of Zhonghu University has played a very important role in the development of ground-based anti-satellite laser weapons, and if it were not for him, he would not have developed such a powerful weapon." ”

"Ye Fei?" Mr. Yu frowned, he hadn't heard Ye Fei's name.

He is a man in the field of astrophysics and although he also pays attention to the things of the mathematical community, he only pays attention to it occasionally, not very much.

Moreover, the mathematicians he pays attention to are all the top mathematicians in Xia Kingdom, and all of them are academicians.

The rest of the mathematicians, out of his radar.

Mr. Yu said: "I have to pay close attention to the person who can develop such a powerful weapon." ”

(End of chapter)