Annihilation of the solar system

Yesterday's dark moon has not yet dissipated, and the birds jumping back and forth on the branches are already singing happily in the morning light. Wei Xu stands unkempt by the window of the office, chewing steamed buns and watching the rising sky.

The rising sun dyes the clouds in the sky red.

"The workload of this analysis, verification and calculation is too great. I'm afraid we won't be able to get accurate results for a few more years." He murmured, dragging his eyelids.

Xia Lan rubbed her bloodshot eyes, stretched, and then yawned involuntarily.

"Yes, but it preliminarily confirms my guess last night. There is a problem with the statistical analysis method."

Wei Xu stuffed half of the bun into his mouth, walked to the desk and picked up the steaming soy milk:

"We need to find out the similarities and differences among so many original data through statistical integration. Then compare them with the usual observation data. Finally, we need to integrate the data before and after the failure and compare it with the previous data.

Data comparison. We were busy all night, and we didn’t even finish screening the basic data within one-twentieth of a second before and after the failure occurred.”

Wei Xu took a sip of soy milk and smoothed his throat.

"This is just a rough calculation. This is not the solution, senior sister."

Xia Lan nodded:

"At least something suspicious has been discovered. If the data before and after the failure is accurate to one ten thousandth of a second, the result may be obvious."

Wei Xu suddenly thought of something:

"Let's go to the Aerospace Data Analysis Center to find a solution."

Xia Lan tucked a strand of hair hanging on her face behind her ear:

"This cannot solve our problem, even if the data analysis accuracy is adjusted. The statistical logic of the system analysis program of the Aerospace Data Center is based on normal observation results. What we need now is to adjust the logic of analyzing data to eliminate interference clutter.

Remove it, it’s like if you use a sieve for peas to sift sand, will it be useful?”

Wei Xu drank all the soy milk in his hand.

“Then wouldn’t it be enough to ask them to replace us with a sieve for screening sand?”

Xia Lan shook her head:

"You think too simply. Your undergraduate major is physics. My undergraduate major is astronomy, and I was exposed to data analysis system software at that time. To adjust the data analysis logic of a subsystem, it involves the adjustment of several subsystems. This requires

Software engineers rewrite it, and updating the software may require the entire system to be taken offline.

Then the data processing of the Space Control Center will be stopped. The orbit detection and attitude adjustment of so many satellites in the sky all rely on the data processing of the Space Control Center. I don’t think they will agree with us to verify a conclusion that is still in the guessing stage.”

Wei Xu threw the empty paper cup into the trash can:

"According to the amount of data we have, if we want to quickly draw reliable conclusions, we must use a large computer. There is no fully automatic analysis software. At least the calculation and statistics of the huge amount of underlying data have been completed. We can do the analysis and screening ourselves.

If you work harder, you can still finish it."

Wei Xu's words seemed to remind Xia Lan. She raised her hand and looked at her watch:

"Let's go! Let's go to Teacher Shen's place!"

When Xia Lan and Wei Xu arrived at Shen Manying's home, she was having breakfast with Zhou Cheng. Seeing that both disciples had dark circles under their eyes, looking at the time, she roughly guessed that something important was going on.

They had originally signed a confidentiality agreement regarding Oumuamua and gravitational wave detection, but now the detection has failed according to the official conclusion, and Xia Lan couldn't care so much, so she told her mentor Shen the whole story. Man Ling listened and hoped to help them solve the calculation problem.

After hearing this, Shen Manling's face showed a rare expression of embarrassment.

"This matter is not easy to handle. Few people in my work circle have anything to do with large computers. How about I help you contact the Data Analysis Department of the Aerospace Control Center and let them think of a solution for you."

Xia Lan and Wei Xu had stunned expressions on their faces, and were about to say something. Zhou Cheng, who was having breakfast beside him, said:

"It's useless to call them. I understand what they said. You can probably solve the calculation accuracy with just one phone call. But if you rewrite the calculation logic software, can they stop the data processing of thousands of satellites in the sky to help you solve it? "

Xia Lan and Wei Xu looked at each other, their faces gradually darkening. Zhou Cheng took out a tissue from the exquisite lunch box and wiped his mouth:

"Are your underlying data computing models and computing solutions ready?"

Xia Lan's face was filled with hope again:

"The details are not ready yet, but the general framework is there."

Zhou Cheng threw away the piece of paper and said:

"Then you go back and have a rest first. Prepare the things you need for calculations before five o'clock in the afternoon and come to the department office to find me."

Xia Lan and Wei Xu were surprised and delighted, nodding in agreement. Only Shen Manling had a trace of doubt on her face.

Xia Lan and Wei Xu only listened to half of Zhou Cheng's explanation. They worked hard to make several sets of calculation models and calculation plans. When they arrived at the office building of the Department of Physics at the appointed time, Zhou Cheng had already Waiting for them here.

"Let's go, take my car." Zhou Cheng said.

"Teacher Zhou, where are we going?" Xia Lan asked.

Zhou Cheng answered while opening the car door:

"Galaxy Data Processing Center."

The excitement on Xia Lan and Wei Xu's faces suddenly swept away their tiredness. Zhou Cheng closed the car door and turned around and said:

"But you have to promise me that when you get there, you will listen to me unconditionally and you can't make any conditions with me."

Both of them felt that Zhou Cheng's words were a bit strange, but they still nodded because the right place they were going to was so attractive.

The large computers in the Galaxy Data Processing Center can complete the calculations they need within dozens of minutes. However, the application process for using computers at this level is cumbersome and the approval authority is very high. They don't understand how Zhou Cheng can let him get it so easily. They use large computers.

On the way to the Galaxy Data Processing Center, Xia Lan and Wei Xu quickly fell asleep in the back seat of the car. Zhou Cheng looked through the rearview mirror at Wei Xu, who was snoring quietly, and Wei Xu, who was falling asleep with his head against the window glass. Xia Lan had a smile of approval on her lips.

The pursuit and persistence of these two young people towards the truth are very similar to their younger selves.

Arriving at the Galaxy Data Processing Center, Zhou Cheng took them directly to the director's office. When Zhou Cheng opened the door, the director inside was packing up things after work. When he saw someone coming in without knocking on the door, a trace of anger flashed across his face. But when he saw it was Zhou Cheng, he immediately smiled with surprise:

"Hey, Professor Zhou. Long time no see. What brought you here? You came to me at this time, maybe you want to invite me to dinner."

Zhou Cheng did not answer him, but sat directly on the chair in front of the desk:

"If I want to use a computer to calculate something, it only takes a few dozen minutes."

The director still had a bright smile on his face:

"You came to me at this point, Professor Zhou. Bring me the procedures. I will make arrangements for you right away."

Zhou Cheng did not speak, but looked seriously and seriously into the director's eyes. The smile on the director's face gradually disappeared. He sat at his desk and looked at Zhou Cheng and said:

"I said, Lao Zhou, you have done so many mathematical model calculations here. You don't know about the approval procedures, right?"

Zhou Cheng took out a cigarette and lit it. The director took out a spotless ashtray from under the desk drawer and handed it over.

"You take out all the forms and information, and I'll sign all the required signatures for you. You fill in the content yourself, and it's none of your business to check it out." Zhou Cheng said while shaking off the ashes of his cigarette.

Xia Lan and Wei Xu behind them suddenly realized why Zhou Cheng asked them to agree to such a strange request in the car. The director took out some forms and white paper from the drawer and handed them to Zhou Cheng and said:

"If this is known, you will be punished!"

Zhou Cheng held a cigarette in his mouth and signed the words in a quick and easy manner, while saying nonchalantly:

"You hurry up and make arrangements. I have other things to do after you finish."

The director picked up the phone and called the staff to take Xia Lan and Wei Xu away.

With the blessing of the Galaxy Supercomputer's tens of billions of computing power per second, the operation was completed in a very short time. And they spent more time inputting data, and the calculation only took up a very small amount of time. When Zhou Cheng brought

When Xia Lan and Wei Xu were about to get in the car and leave, the director chased them out, handed a brown paper bag to Zhou Cheng and said:

"The computers in our center did another routine computing power test today."

Zhou Cheng smiled and took the brown paper bag:

"Well, come to my house for a drink another day."

Xu and Xia Lan, the guards who got on the bus, had complicated expressions, with admiration and apology on their faces. Zhou Cheng handed the brown paper bag to the back seat, and Xia Lan opened it and saw that what was inside was exactly what Zhou Cheng had signed in the office just now.

Those forms and white paper.

"This kid is one year below me. He used to be engaged in experimental physics. Once when he was working on my project, he got the experimental parameters wrong. If I hadn't discovered and stopped him in time, I wouldn't have known where he was now.

.This time he returned the favor to me."

After listening to Zhou Cheng's narration, the two of them felt relieved again.

"By the way, what's the result of your calculation?" Zhou Cheng asked.