Wandering Spaceship in Deep Space Chapter 16: No aliens attacked the earth

　　 In the dead of night, two young people were frantically doing questions.

　　 Li Zhendong was very angry, really angry, every time Zhang Yuan surpassed him, he had to work hard again to surpass the opponent.

　　 Working hard is a very painful thing for him.

　　 Especially, this guy smirked happily while doing the junior high school Mathematical Olympiad problems. What is this?

　　 Doing the junior high school Mathematical questions can still do happily like a fairy, is this a human?

　　 grabbed a handful of hair, and Li Zhendong was irritable. The various texts in the book were like fleas, jumping east and west. After watching for a long time, he didn't know what he was talking about.

　　 Quietly, I didn't look at it.

　　 glanced at Zhang Yuan’s question again: "Prove: 2 open to the power of n are irrational numbers. (n is a positive integer greater than or equal to 2.)"

　　"Proof: Assuming that 2 is a rational number to the nth power, it is counted as p/q, and p and q are mutually prime numbers."

　　"Then 2=(p^n)/(q^n), that is, 2(q^n)=(p^n)"

　　"Move the item to get p^n=q^n+q^n."

　　"From Fermat’s Last Law: There is no positive integer solution to this equation. So the assumption is wrong, and 2 open nth powers are all irrational numbers."

　　 Li Zhendong almost vomited a mouthful of old blood: "You can't teach my sister this way, really can't! And you are helping her with Mathematical Olympiad problems, how can this work?"

　　 Zhang Yuan was stunned, and found that he seemed to have become a free homeworker without knowing it.

　　 But it’s okay, the whole proof idea... If you copy them exactly, the teacher will definitely laugh crazy.

　　 "Forget it, I won't do it. Pastime is enough here." Zhang Yuan yawned, feeling quite happy.

　　 Li Zhendong finally breathed a sigh of relief. He couldn't wait to put down the book in his hand and rubbed his painful temple.

　　 He picked up the telescope, walked out of the balcony, and looked in a direction in deep space.

　　 Gliese 581, a red dwarf star about 2 degrees north of Beta Libra, their destination.

　　 Its mass is 0.31 solar mass, its radius is 0.38 solar radius, and its surface temperature is about 3,480K (3206.85°C).

The sight of 　　+10.56 means that ordinary astronomical telescopes cannot see there, but Li Zhendong is still searching tirelessly.

　　 That is the future home planet!

　　 Li Zhendong suddenly thought: "You said, why is there a deep space project? Is it because the high level of humanity has learned that aliens will come to attack the earth?"

　　 "Impossible!"

　　 Zhang Yuan responded indifferently: "If this is the case, it is definitely a large-scale spaceship built by the power of the world. And it is the turn of us to escape? You should have seen all kinds of science fiction movies, the end is coming, promise How much does the ticket for the Ark cost? Even if we are the sons of scientists, it might not be that important, right?"

　　 "Although the movie is not true, it is also a partial portrayal of the truth. Nowadays, no country leader is rushing to run away. When have humans been so noble?"

　　 was silent for a while.

　　500,000 volunteers are not the best people in the earth’s civilization. Everything depends on personal volunteers. There are a few scientific giants with dreams, but true political leaders cannot give up everything on the earth and go to such a poor place.

　　 Li Zhendong smiled: "Yes, so there are no aliens attacking the earth. Then what do you say?"

　　 Zhang Yuan pointed to two directions in the sky, frowning and said: "It may be that, it may be this... or both, or more importantly, the reason we don’t know. ……"

　　 In the direction of Zhang Yuan’s finger, there is a star, KIC-8462852, commonly known as Tabby star.

　　 The one in the other direction is the star Eta Carina.

　　 looked up at the sky.

　　 There are few stars in the moon, and the lights in the big city obscured the dazzling starry sky above. It becomes even more difficult to find these stars.

　　In the history of 1977, there was a blackout in North America.

　　 At that night when the lights disappeared, the boundless sky revealed its original appearance.

　　 The ridiculous scene happened. That night, the police station received many calls to the police, saying, "There are aliens attacking the earth!"

　　The reason is nothing more than...These urbanites have never seen the real galaxy, and they are frightened at a loss by the ancient power.

　　 Yes, Mother Earth is really too warm, too gentle, gentle to the human beings of that era, he has been reluctant to leave the baby, and has gradually forgotten the vast world outside.

　　 but...

　　 There are more than just humans in this world.

　　The universe will not disappear directly because of human beings.

　　The first challenge comes from the "Carina Eta Star", also known as Haishan II, an extremely supergiant star that has more than one hundred times the mass of the sun. Scientists estimate that this star may explode within a million years and form a supernova!

　　 Attention, it is a supernova, which has an extra word "polar" than an ordinary supernova.

　　 If the star Eta Carinae is 7500 light-years away from the solar system is pretty good news, then another news is simply fatal...

　　 After research, its rotation axis is likely to be aligned with the solar system, which is no different from a stellar cannon ready to be launched at all times!

　　 When Eta Carina explodes, a powerful gamma-ray burst will sweep the entire solar system.

　　"Unfortunately, this bright star is not visible in the northern hemisphere."

　　 Of course, this disaster may be very big or small. First of all, the timing of its outbreak is too vague. It may be a million years later, it may be tomorrow, or even a hundred years ago. break out.

　　 What's more, scientists are still arguing about the rotation axis deflection of eta carinae and disaster prevention...

　　 Humans don’t know much about this kind of celestial body, and it is difficult to accurately predict the disasters it will bring to human civilization.

　　 After a long-distance rush, the gamma-ray burst may destroy the entire ecosystem, but it may not have much impact. Anyway, I can't figure it out.

　　The second challenge comes from KIC8462852, Tabby Star.

　　 In the 21st century~IndoMTL.com~ Humans have already discovered this strange star, and its periodic light changes have attracted the attention of astronomers.

　　 At that time, many scientists speculated that it was a nebula or other large celestial body that covered the star and caused its light change.

　　 But!

　　 Hundreds of years of observations have only proved one thing: its shading is increasing at a rate of 0.64 per thousand per ten years.

　　In other words, if the maximum shading data ten years ago was 22.112% shading, then it is now 22.176%, without exception.

What does 　　着 mean?

　　 means that there is an artificial structure near that star, and it is under construction at a constant speed.

　　 has been going on for hundreds of years!

　　 Dyson Ball, it's there. There will be no changes due to human will.

The fact of 　　 caused a huge panic among the senior civilized leaders.

　　 The distance of 1,400 light-years is too far for mankind, but it is far from enough to smooth this panic.

　　Any normal person knows what "Dyson Ball" means.

　　Human civilization, compared with the civilization that can build Dyson spheres, is simply a paramecium!

　　 At the time, Professor Qi Yuanshan, the "father of nuclear fusion", wrote in his diary excitedly: "If there are no aliens, mankind will be destroyed by its own laziness!"

　　"...Just like the old times, the upcoming entertainment trend, non-toxic neuromedicine will destroy most of the enterprising spirit of mankind. The Dyson ball is proved to be true, and mankind may be able to recover from corrupt consumerism and capitalism. Cheer up, similar to the effect of the US-Soviet Cold War!"

　　 "I have to say that mankind has a good neighbor, and there may be hope, but fortunately... oh!"