At eight o'clock in the morning in the game, Gao Zhuling also appeared on time in front of the door of the multi-functional lecture hall of the School of Physics, while Bai Lidu and Dr. Gao Hongbin also arrived here early and waited at the door, and Zhou Ruolan also followed not far behind Gao Zhuling.

When the father and daughter saw each other, they naturally inevitably exchanged pleasantries, and after the two greeted, Gao Hongbin introduced Bai Lidu to Gao Zhuling, and Bai Lidu also called Zhou Ruolan over and introduced him to the father and daughter.

Gao Hongbin did not deliberately hide it from his daughter, and directly told Gao Zhuling the truth, but did not mention that Bai Zhouren was from a thousand years later, but only told his daughter that these two people were specially made to protect her, Gao Zhuling After experiencing last night's alien dog attack, MIB police protection and inexplicable crash, he can also calmly accept all this in front of him, and is also willing to listen to some arrangements from his father.

For the accident suffered by Gao Zhuling, Bai Lidu only calculated that it should have happened in the morning or noon according to the vague description on the log, as for how it happened, and the specific form of the accident is not clear, so under Gao Hongbin's arrangement, and under the leadership of Gao Zhuling, everyone entered the multi-functional lecture hall together, intending to participate in the layout of the venue throughout the process, on the one hand, they can share Gao Zhuling's workload, and on the other hand, they can also protect their safety.

In the multi-functional lecture hall, there are many students who participate in the layout of the venue, men and women, there are probably dozens of people, and the specific venue layout content is not much, mainly three, one is to place a bottle of pure water on the armrest of each seat in the lecture hall, the other is to place a lectern for the speaker on the stage in front of it, and adjust the volume of the microphone, and the other is to make a few slides for different scenes on the background screen of the stage.

For these three arrangements, in fact, there is no danger, so Gao Zhuling planted pure water in each seat under the command of Gao Hongbin, and other students were busy with the other two jobs, and the layout of the entire venue was carried out in an orderly manner, and there was no abnormal situation.

Bai Lidu followed Gao Zhuling's side or behind him throughout the whole process, conscientiously performing his duties of guarding, while Zhou Ruolan found a commanding height in the lecture hall, observing and looking from afar.

"Dad, the work is done, and I have already sent the water...... Gao Zhuling came to Gao Hongbin after finishing his work.

"Well, then you can sit down and rest."

"Dad, this little work is nothing, I'm not tired at all......"

Soon, the whole venue was arranged, and the game time was close to 10 o'clock in the morning, many students and teachers who came to listen to the report meeting also entered the venue one after another, Gao Zhuling had already planned to listen to the report, so he also found a front position, pulled Gao Hongbin to sit down, Bai Lidu took the initiative to sit on the other side of Gao Zhuling, and the three of them waited for the start of the report meeting.

Moments later, a slideshow appeared on the big screen in the background of the stage:

[Chinese Chief Astrophysicist Dr. Zhang Xiangyang's Keynote Lecture - "Flying to Sirius"]

As soon as 10 o'clock in the morning, a person dressed as a host walked to the stage, and after a brief self-introduction, he said: "Next, let us welcome Mr. Zhang Xiangyang, the chief astrophysicist of China and a candidate nominated for the latest Nobel Prize in Physics, to the stage with warm applause!" ”

"Smack! Syllable! Syllable! Syllable! ”

With the warm applause of the audience, a thin middle-aged man walked slowly onto the stage, took the microphone and said to the audience:

"Dear teachers and students, good morning, I am Zhang Xiangyang, I am honored to be here to communicate with you, the topic of my report today must have been known in advance, that is, "Flying to Sirius" ......"

"Heh, there's really a report meeting!" Zhou Ruolan sighed in the team channel.

"Well, yes......" Bai Lidu also responded, and at the same time he was very interested in this report, according to some knowledge he had, Sirius should be the closest star to the Earth in the Milky Way outside the solar system, and many rumors related to aliens are basically related to Sirius......

Zhang Xiangyang, who was on the stage, continued: "Everyone knows that Sirius is a first-magnitude star in the constellation Canis Major, and according to the nomenclature of the Baye star, it is also called the star Can α is Major, and it also belongs to the well of our 28 constellations in China, and in winter, the brightest star in the night sky is Sirius, because it is very close to the solar system. It is only 8.6 light-years, which means that if our spacecraft can travel at a speed of 300,000 kilometers per second, it will only take 8.6 years to fly to Sirius. ”

"It sounds easy, it's only 8.6 years, but the reality is that our most advanced spacecraft today are far from the speed of light, and theoretically have just reached twice the third cosmic speed, which is almost 30 kilometers per second, and if we fly to Sirius at this speed, we will need to fly for 86,000 years......"

"Boom! ……”

There was a burst of laughter from the audience, and at the same time, there was some discussion.

Next, Zhang Xiangyang explained in his report why human beings want to fly to Sirius, one of the most important reasons is that the earth's ecological environment is becoming worse and worse, the population continues to increase, environmental pollution is not improved, and the extinction of some animals and plants is also accelerating.

When he said this, Gao Zhuling, who was sitting next to Bai Lidu, obviously had a different opinion, so he raised his hand, and Zhang Xiangyang signaled that he could stand up and ask:

"Hello Dr. Zhang, I am Gao Zhuling, an astrophysics major in the School of Physics, as far as I know, Alpha Centauri is the closest star system to us, only about 4.37 light years, and Proxima Centauri in the Alpha triad is only 4.2 light years away from us, and a habitable terrestrial planet has been discovered in it, if we fly there, it is equivalent to half the distance shortened than flying to Sirius, why don't we consider it? Thank you ......."

Bai Lidu couldn't have imagined that Gao Zhuling would ask such a-for-tat question, you must know that the theme of this report meeting is to fly to Sirius, not to fly to Proxima Centauri, if someone in the real report will ask this kind of question, it is tantamount to smashing the field.

Seeing Zhang Xiangyang on the stage, he kept nodding, and applauded after Gao Zhuling finished asking questions, and said at the same time: "The question raised by this high student is very good, and it is exactly what I will talk about next, oh?" Is the person sitting next to you Dr. Gao Hongbin? ”

Zhang Xiangyang recognized Gao Hongbin, who was sitting next to Gao Zhuling.

"Boom! ……”

The scene exploded again, obviously Dr. Gao Hongbin's reputation in the field of physics is also very loud, after Zhang Xiangyang said in public, Gao Hongbin naturally could no longer sit quietly, stood up and waved to the surrounding audience, and signaled Zhang Xiangyang to continue his report.

"Ahh Thank you very much Dr. Hongbin Gao for being here, and I hope to be able to talk to you for a few minutes after the presentation, okay, then I will answer the question of Mr. Gao just now. Zhang Xiangyang said.

Before I really answer this question, I still have to lay the groundwork, I want to ask everyone here, have you seen or heard of a science fiction called "The Three-Body Problem"? If you have seen it, please raise your hand."

The audience in the audience also responded, and raised their hands one after another, Bai Lidu also watched this classic when he was in college, and this film has been put on the big screen many times in the decades since it came out, so even if they haven't seen it, there are still many people who have seen its movie.

"Okay, very good, what I want to say is that the Alpha Centauri mentioned by this high student just now is actually the prototype of the three-body star in the three-body world, we call this three-body star a triad, and Proxima Centauri is the third of these three stars, we call it Alpha Centauri C......"

Zhang Xiangyang said eloquently, obviously he had made sufficient preparations in advance on this issue......