Die on Mars - Chapter 223

c222 Day 327 (8) must be done

No one can confirm whether a parallel universe exists. For something that cannot be verified or falsified, as long as you believe it exists, then it exists – so maybe there will be such a universe where the earth is safe and sound, and Tang Yue and Maidong can Live a peaceful and joyful life.

The old cat said so.

It also said: If the number of parallel universes is really infinite, then Tang Yue and Maidong will not only meet once, but they will meet at every Planck time on the entire timeline.

“So… will they have children?” Maidong asked in a low voice.

“If your fertility is normal, you will obviously have offspring.”

“It’s not us…” Maidong corrected, trying to keep her tone calm. No one could see her blushing and steaming on the space station anyway, “It’s them.”

“They are you.” Old Cat corrected him.

“Then…how many children will they have?”

“How many children do you hope to have?” asked the old cat.

“It’s them, it’s them, it’s them, it’s not me.” Maidong took off his mask and buried his face in the spacesuit, his cheeks burning in the cold air.

The old cat was puzzled.

Isn’t the Ophiopogon japonicus in the parallel universe not Ophiopogon japonicus?

“Okay, how many children do Ophiopogon japonicus hope to have? Miss Ophiopogon japonicus, as a representative, please answer this question.” The old cat changed his question and asked, where Ophiopogon japonicus refers to Ophiopogon japonicus in all parallel worlds.

“Two, one boy and one girl.” Maidong replied, “It’s best to be brother and sister, so that the older brother can protect the younger sister. Siblings are also okay…but then the older sister will bully the younger brother.”

Tang Yue sat on the edge and sneered.

too naive.

Obviously this girl Maidong has no brother.

Who told you that your brother would definitely protect his sister?

Tang Yue, like him, never protects his sister.

His sister has always been there to protect him.

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“Forty…forty…forty.”

The old cat muttered behind the monitor.

“What forty?” Tang Yue raised his head and asked.

“The small hammer is forty, the big hammer is eighty.” The old cat put his paws on the computer monitor and hooked his fingers, “Tang Yue, I have sent you the completed posture motion equation. You can do the math and use Pen and paper.”

Tang Yue was startled by the dense letters and operators on the screen.

“Why don’t you just let the workstation do the math?” Tang Yue asked, taking out a large stack of scratch paper from the drawer, “Just hit the keyboard.”

“Because I can’t trust it.” Lao Mao was working at his desk. “This workstation has been having troubles lately. It keeps giving me wrong results. It’s even stupider than you.”

“I pretend I didn’t hear the last sentence. Such a complicated thing requires me to use pen and paper to calculate…” Tang Yue opened the pen cap and scanned the formulas on the screen up and down, “If you want to kill me, get a handful of fruit.” Just stab me with a knife and it will be fine.”

“Oppenheimer also used pen and paper to calculate the critical mass of uranium fuel.”

“That’s Oppenheimer!”

“But you stand on the shoulders of giants.”

“Just because I stand on the shoulders of giants, it doesn’t mean that I am taller than giants.” Tang Yue copied the formula on the screen onto a piece of scratch paper and began to calculate step by step. Although the formula was complicated, it was not a question that tested his IQ. , just continuous matrix transformation, no more than the content of college mathematics courses, pure pen skills.

“Speaking of this, I suddenly remembered an old Soviet joke. It said that there is a rule in hell. Whoever kills innocent people indiscriminately will be drowned in the blood of the victim in hell. One day, God inspected hell and found blood. The water only reached Beria’s legs. God was very surprised, so he asked him that you had a lot of blood during your lifetime, why did the blood only reach your legs? Beria replied: Because…”

“Attitude motion equation.” Old Mao sent the new equation and glanced at him, “Note that q is the attitude quaternion vector.”

“Three Euler axis directions, the last Euler corner, right? It’s clear.” Tang Yue nodded, “Let’s continue telling that joke. God was very strange, so he asked Beria, you have so many blood debts, why did the blood only cover you? Legs? Beria replied:…”

“Here are two simulation results. The first ignores the impact of flexible solar panels on the spacecraft, and the second takes into account the impact.” Lao Mao sent over a large number of terrifying numbers and charts.

“Why did you give me this?”

Tang Yue stared.

“Check it and see if there is any problem.”

“The problem is that I don’t understand, man, do you think I am Ramanujan…can he become a master by self-taught?” Tang Yue turned the page, frowned, and then buried his head in calculations, “Let’s continue telling that joke, Bei Leah replied: Because…”

“Because I stand on Stalin’s shoulders.” The old cat shook his head, “Why do you tirelessly tell me this? This old political joke is as old as your grandfather.”

Tang Yue was stunned, “What? Standing on Stalin’s shoulders?”

The old cat was also startled, “Isn’t it?”

“No.” Tang Yue shook his head, “Beria replied: Because you didn’t add anticoagulant to the blood – so he stood on the coagulated blood cells, and God only saw the upper serum – this is our middle school The biology teacher told it when he was taking a class on blood and serum.”

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“Listen, this is a strategy. The methods and control steps for rendezvous and docking of non-cooperative targets. We all know that the joint space station is currently completely out of control. Docking under such circumstances will undoubtedly be extremely difficult.” Old Mao sat down. He stood on the edge of the table and rested his elbows on the monitor, “So we need to set up a parking point at a suitable distance so that the Tianzhou spacecraft can observe and analyze the space station from this distance.”

“How far apart should we keep?” Tang Yue calculated quickly.

“I don’t know, I’m still calculating.” The old cat shook his head, “Is Miss Maidong here?”

“She’s in the no-signal zone.”

“The Tianzhou cargo spacecraft is an unmanned spacecraft. The most important thing for an unmanned spacecraft to dock with an out-of-control spacecraft is self-adaptation. If there is a delay in our remote control intervention, it will definitely be too late.” Lao Mao continued, “The entire The plan is divided into three parts… The first is the analysis and judgment of relative motion. This is the prerequisite for rendezvous. The Tianzhou spacecraft must accurately analyze the attitude, orbit and motion status of the joint space station and make predictions. ”

“Can it be done?”

“It can’t be done.” Lao Mao replied, “So we have to deal with this, including the issue of the landing site. We must make the landing site of the spacecraft as close as possible to Kunlun Station. But once the spacecraft actually enters the atmosphere, the landing site cannot make major changes. , so this needs to be done in advance.”

“It’s too complicated.” Tang Yue put down the pen in his hand, was silent for a moment, and finally said.

Even a layman like Tang Yue can appreciate the complexity of this plan.

“Complexity is not scary.” Old Cat said, “No matter how complicated or confusing the knot is, it is all connected by a simple rope. As long as you find the right direction, the problem will be solved – and this is the simplest of the three parts.”

“What about the second part?”

“The second part is automatic control.” Lao Mao said, “You are studying mechanical and electrical, and you know what the basic principles of automatic control are. Negative feedback – the Tianzhou spacecraft must adapt to the attitude and motion status of the joint space station. It must be adaptive. It is the key to everything. It adjusts its own status based on the data from the microwave radar and the docking sensor, and repeatedly corrects the deviation. This requires extremely high precision, extremely high, extremely high accuracy, extremely high, extremely high, extremely high accuracy.”

Laomao used a total of six extremely high stress conditions.

“Can it be done?”

“It can’t be done.” Old Cat replied, “So it’s up to us to handle this. Ladies and gentlemen, let the workstation be as big as possible. Dismantle the case and prepare enough ice cubes to cool it down. Even if it cools down after this, If he dies, then he deserves to die, no, he deserves to die.”

“The third part is rendezvous and docking, or capture.” Lao Mao said, “If the first two steps go well, then in the final stage, the Tianzhou spacecraft will capture the United Space Station, dock with the latter, pick up Miss Maidong, and then Quickly break away, adjust the attitude and re-enter the atmosphere – the whole process will be controlled by the computer, and it must be done neatly and in one go without any delays. A slight delay can kill both ships.”

“Can it be done?”

“It has to be done.”

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(Author Jun’s gossip: Even sister Zhiling is married, what a waste of time.)