The Science Fiction World of Xueba

Five years passed in a flash.

In the past five years, the earth has completed four revolutions around the sun, and the eccentricity of its elliptical orbit is increasing year by year, and the aphelion of the earth's orbit is close to the orbit of Mars.

Due to the huge mass of the earth, the thrust of the planetary engine is still quite limited, and there is no way to directly push the earth away from the solar system.

Therefore, the earth has to go around the sun twelve more times before leaving the solar system.

Driven by planetary engines, the eccentricity of the earth's orbit increases year by year.

Finally, the aphelion of the earth will be close to the orbit of Jupiter, and then with the help of Jupiter’s gravitational slingshot effect, it will accelerate for the last time until the speed exceeds the third cosmic speed (the third cosmic speed here refers to the speed of the earth’s revolution around the sun plus the third cosmic speed. three cosmic speeds), thereby breaking away from the gravitational bondage of the sun.

This period of journey is called the orbit change acceleration period, and it is also a key node for whether the earth can escape the envelope of the solar helium flash.

The orbital change of the earth is accelerating year after year. Whenever the earth is gradually approaching the perihelion, human hearts will tighten up. Rumors spread in the underground city, saying that the solar helium flash is about to erupt.

Only when the earth falls toward the aphelion again, will the human heart gradually relax.

It's like Russian roulette on a cosmic scale, going to aphelion is like turning the wheel of a revolver, and going to perihelion is like pulling the trigger.

But in essence, there is no difference between the two. On the contrary, when the solar helium flash erupts at the aphelion, the temperature of the dungeon will not rise instantaneously, but slowly. The feeling is not as good as being instantly vaporized at the perihelion.

Pang Xuelin didn't feel anything special. Anyway, no matter in the novel or the movie, the final ending of the earth is to escape successfully, but the process is a bit difficult.

In the past five years, he has grown from a young talented scholar to an academician of the Chinese Academy of Sciences, and concurrently serves as the vice president of Jiangcheng University. He is considered one of the top figures in the Jiangcheng No. 1 underground city, and was even elected as a member of the China Science Committee .

In the world of Wandering Earth, the government, the military, and the scientific committee are three pillars. Any decision made by the government and the military must be reviewed by the scientific committee.

Therefore, in this world, Pang Xuelin's personal status and personal power are far higher than his in the real world.

But it doesn't make sense to him, he's not a power-hungry person.

Most of his time, he still rotates between the three places of laboratory, classroom and home.

Yao Bingxia has already graduated from high school. To Pang Xuelin's surprise, this girl was influenced by him during the college entrance examination and chose Jiangcheng University to major in material science.

However, this is also understandable. Since the outbreak of the solar crisis, the fields of culture and art have been compressed to the extreme. Even religion has disappeared overnight, and science and technology have been raised to unprecedented heights.

So when he was in school, there was often a follower behind him. Most of the teachers and students in the school knew the relationship between the two. Sometimes when they met Du Jiaxiang, who was already the principal of Jiang University, the other party would jokingly ask Pang Xuelin , When can we drink the wedding wine for the two.

At this time, Pang Xuelin could only talk about him in embarrassment, but Yao Bingxia would reply sweetly that it would be fine after she graduated.

The most unexpected thing is Du Jiaxiang's student Gao Tianyi. After graduation, this guy did not choose the academic circle, but entered the political circle. He is now one of the main leaders of the Jiangcheng No. 1 Dungeon Management Committee.

That afternoon, when Pang Xuelin came home from get off work, he opened the door, only to find that the room was pitch black.

Pang Xuelin was slightly taken aback. When he entered the door just now, the light in the corridor was still on. He thought the electricity at home had tripped. He was just about to go to the switch room to have a look. on his back,

He covered his eyes with his hands.

"Brother Xiaolin, guess what day it is today, if you guess right, there will be a surprise!"

Yao Bingxia exhaled in his ear like a rand.

Pang Xuelin coughed dryly, suppressed the strangeness in his heart, and said, "Xiao Xia, don't make trouble, today is Arbor Day on March 12th, it's neither your birthday nor any special holiday..."

"Hmph, sure enough, you forgot your birthday again!"

snapped—

The lights in the room turned on, and immediately after, various colored ribbons fell from the sky. Yao Bingxia let go of his hands, walked in front of Pang Xuelin, and said with a sweet smile, "Brother Xiaolin, happy birthday!"

In five years, the originally young girl has completely changed her appearance. She has red lips and white teeth, blue clouds and silk eyes, and her eyes are as bright as autumn moons. Even though she has been with Yao Bingxia for so long, Pang Xuelin is sometimes overwhelmed by her beauty .

In Jiang University, Yao Bingxia is a well-deserved school flower, but because of Pang Xuelin's relationship, no one dares to pick this delicate flower easily.

"Brother, come with me."

Yao Bingxia dragged Pang Xuelin into the living room, looking at the cake on the coffee table, Pang Xuelin couldn't help being surprised.

"Where did you get this cake?"

In this era, milk is a luxury, not to mention cream, and foods like cakes are even more luxurious among luxury goods. Pang Xuelin has also seen it at the dinner parties of some major events.

Yao Bingxia smiled and said: "I made it myself. Don't we have a five liters of fresh milk quota every month? If you don't drink it, I will save milk for three months and then go to the teacher of the food engineering laboratory. I used the centrifuge in their laboratory to make cream. I entrusted Brother Gao to get the eggs for me. There are eight in total. You can buy them in the fruit market, but strawberries and kiwis are more difficult to buy. It is said that they are in agricultural areas. Some people planted it secretly, and it is only sold on the black market, and it cost me five hundred credits to get it!"

"You girl..."

Pang Xuelin was moved and sad at the same time, and said: "Xiao Xia, if you really want to eat cake, tell me, I still have a way to get it, do you need to spend so much effort?"

Yao Bingxia smiled and said: "In the past years, when you celebrated my birthday, you didn't ask grandpa to sue grandma, and sold countless faces to get the cake. When you celebrated your own birthday, you just randomly ordered a bowl of noodles to deal with it. This year I will I think I'm going to make a cake for you by myself, and I found the tutorial on how to make a cake from the Internet, it's information from the golden age, I don't know how many years ago, I didn't expect it to be successful once!"

Pang Xuelin reached out and touched Yao Bingxia's head, Yao Bingxia narrowed his eyes slightly, with an expression of enjoyment on his face.

This is Pang Xuelin's little gesture of intimacy to her. It started from the day they entered the underground city to live together, and the two had a tacit understanding for a long time.

"Brother, well, let's blow out the candles and make a wish first!"

The raw materials for the cake were limited, Yao Bingxia didn't make a big one, and couldn't fit twenty candles, so Yao Bingxia lit one, which represented that Pang Xuelin was one year older.

call--

In Yao Bingxia's clear birthday song, Pang Xuelin blew out the candle in one gulp.

"Brother, make a wish, make a wish!"

Pang Xuelin said: "Shall we make a wish together?"

"good!"

Pang Xuelin closed his eyes, murmured in his heart for a while, then opened his eyes, and saw Yao Bingxia looking at him with a smile.

"Brother, what did you wish for?"

Pang Xuelin smiled and said: "I hope that Xiaoxia of our family can be happy for the rest of his life and find a good husband as soon as possible, so I can rest assured."

"Hmph, I don't want it. I want to be with Brother Xiao Lin for the rest of my life. Besides, it's not like someone doesn't know the wishful man I want."

Yao Bingxia pouted and said.

"Well……"

The atmosphere in the living room was awkward.

Pang Xuelin had some headaches, and this girl didn't know what was going on. Since she was eighteen years old, she had shown a special emotion towards herself that surpassed the normal brother-sister relationship.

It's not that Pang Xuelin doesn't know what Yao Bingxia means, but he can't stay in this world forever, the two will be separated sooner or later, so he can only pretend to be ignorant.

As a result, this girl is becoming more and more excessive now.

"Come on, eat cake, eat cake!"

Pang Xuelin hurriedly cut the cake into pieces.

"Hmph, coward!"

Yao Bingxia took the cake that Pang Xuelin handed over, and then took a big bite viciously, as if venting some kind of resentment in her heart.

Pang Xuelin had no choice but to pretend to be ignorant.

After a while, Yao Bingxia seemed to have lost her anger, and said with a smile: "By the way, brother, there is something I didn't discuss with you, and I made a decision in private. I told you, you shouldn't be angry, right? !"

Pang Xuelin was slightly taken aback and said, "What's the matter?"

Yao Bingxia said: "Isn't the coalition government going to resume the Olympic Games, which has been interrupted for more than 40 years? I signed up for the electric ice sled rally, starting from Shanghai, and the destination is New York!"

Pang Xuelin said while eating the cake: "It's very good, this activity is okay, I support you to participate."

Yao Bingxia smiled and said: "But I applied for the mixed doubles event. I couldn't find a suitable teammate, so I added your name!"

"What?!"