Volume 1: Student Life Chapter 135 UPC Starts
After returning to the dormitory, Chen Zhou certainly didn't wash up and go to bed immediately.
He took out his collection of wrong questions and began to sort out the mistakes he had accumulated during team training during this period.
Chen Zhou deliberately didn't look through the collection of wrong questions just to wait until now.
These errors, like the errors made during the first team training, were actually modified and resolved after they passed the model verification.
So, after Chen Zhou opened the wrong question collection and looked over the mistakes, they disappeared.
Of course, Chen Zhou deliberately stayed until now, definitely not to make them disappear in one glance.
After closing the collection of wrong questions, Chen Zhou began to recall these problems and analyze the reasons for these mistakes.
The main reason is that the theoretical analysis is not rigorous enough, which causes deviations in calculations.
The solution is also very simple, avoid it from the source.
During the theoretical analysis stage, try to be as perfect as possible.
Mistakes are stepping stones to growth, and learning from mistakes is Chen Zhou’s goal at the moment.
At 11 o'clock in the evening, Yang Yiyi began to urge Chen Zhou to wash up and go to bed.
Chen Zhou thought he would have enough sleep, but as soon as he lay down on the bed, his mind was full of things related to the competition and he didn't feel sleepy at all.
Sure enough, I was a little excited when I participated in an international competition for the first time.
Chen Zhou tossed and turned, and he didn't know how much time had passed. He finally forced himself to fall asleep.
The next morning, the alarm clock rang and Chen Zhou got up yawning.
After thinking about it, Chen Zhou decided to force himself to sleep for a while in the afternoon.
After tidying up his handsome face at the sink, Chen Zhou went to have breakfast with Zhao Qiqi and others.
After the morning geometry class ended, Chen Zhou returned to the dormitory and studied for a while until Yang Yiyi called.
After having lunch together, the two took a walk around the Yanda campus to digest the food.
Then, Chen Zhou returned to the dormitory and continued reading.
At two o'clock in the afternoon, Chen Zhou closed the book, sent a message to Yang Yiyi, and climbed onto the bed to prepare for sleep.
Li Li, like Chen Zhou, was lying on the bed.
Even if you can't sleep, it's good to close your eyes and rest to restore your spirit.
Zhao Qiqi and Zhu Mingli looked at each other, then lowered their heads and continued reading, but they tried to read as quietly as possible so as not to disturb Chen Zhou and Li Li.
Based on their previous experience in competitions, Chen Zhou and Li Li would probably not be able to sleep at this moment.
Li Li might be better, after all, he has experience in participating in competitions and knows how to self-regulate.
But Chen Zhou might be more nervous at this time because of his lack of experience.
As the two were thinking this, they heard Chen Zhou's slightly heavy breathing.
Chen Zhou fell asleep.
The two of them thought at the same time, damn, the eldest brother is the eldest brother, you can't look at him according to common sense...
There was no way. Chen Zhou had been nervous last night and was indeed a little sleepy now.
Chen Zhou slept for more than an hour. After waking up, he did not open his eyes but continued to lie there.
Until the alarm he set for 4:30 rang.
Chen Zhou rubbed his sleepy eyes, got down from the upper bunk, and went to wash up with a towel and basin.
Competition is the venue for his handsome performance.
4:50 p.m.
Chen Zhou and Li Li walked out of the dormitory together.
Downstairs in the dormitory building, I first met Yang Yiyi and Li Jing, and then went to the cafeteria to wait for Fang Jieming and Xu Neibo.
Xu Neibo is the little fat guy with glasses in Li Li’s team.
5:20 pm.
After finishing their dinner, they went to the computer room prepared by Yanda for the UPC competition.
5:30, arrived at the computer room.
At this time, there were already more than a dozen teams in the computer room.
According to the group numbers obtained from registering on the official website, Chen Zhou, Yang Yiyi and Fang Jieming found the location of their team.
Their group number is 413.
According to the registration information published on the official website of the UPC competition, as of 6 hours before the start of the competition, a total of 201 universities, 2,004 teams and 6,012 students from 57 countries around the world had registered to participate in the competition.
Although the UPC organization has not been established for a long time, it has developed rapidly.
This is also due to its good competition atmosphere and targeted competition questions.
5:40.
All participating teams are present, and the coaches responsible for their respective teams are also in place.
The UPC official website was opened on every computer, waiting quietly for the game to begin.
Chen Zhou looked at Yang Yiyi and asked softly, "Are you nervous?"
Yang Yiyi shook her head: "It's okay."
Chen Zhou added: "I observed carefully and it seems to be just as you said. Among these teams, we are the only couple participating in the competition."
Yang Yiyi smiled and said, "I didn't lie to you, did I?"
Chen Zhou smiled and nodded.
Fang Jieming on the side looked at the two of them with complicated eyes.
The UPC starts at 6pm.
Everyone refreshes the webpage and starts looking at the questions for this competition.
【Problem A: Circumbinary Planets】
【Problem B：A Water Fountain】
Chen Zhou looked at the two questions and frowned slightly. Question A is about orbiting a binary star, and question B is about a fountain. Where is the spacecraft?
While Chen Zhou was frowning and thinking, he heard a lot of "Oh shit" sounds coming from the computer room.
It seems that no one expected that the competition questions would shift directly from issues related to spacecraft to the celestial bodies themselves.
As for question B, the small fountain, the great wisdom, is not necessarily much simpler than the movement of celestial bodies.
Yang Yiyi was also thinking about these two questions and wondering which one she should choose.
Seeing that the two had not spoken, Fang Jieming asked, "Chen Zhou, what do you think? Choose A or B?"
Chen Zhou did not answer directly, but glanced at Yang Yiyi.
However, before Chen Zhou could speak, Yang Yiyi said, "Chen Zhou, do you know Altair and Vega? They are called binary stars, although they are not a binary star system in the actual sense."
After a pause, Yang Yiyi looked at Chen Zhou and continued, "Choose A. Studying the stars is so interesting."
Hearing Yang Yiyi's words, Chen Zhou smiled slightly: "Then choose A, let's study the binary stars."
After saying that, they both looked at the third person beside them, intending to seek his opinion.
Fang Jieming looked at the two helplessly: "I also think studying stars is quite interesting..."
Hearing the conversation between the three people, the teacher next to them couldn't help but smile. She had also read the post on the campus website.
But today I saw it with my own eyes...
Of course, Chen Zhou did not choose question A blindly. He remembered that when he was reading books and literature on astrophysics, Yang Yiyi was also reading a lot beside him.
Moreover, compared with question B, the circumbinary star in question A is more reliable.
We must seize this best of both worlds opportunity !
No more hesitation, the direction has been chosen, the next step is to solve the problems along the way.
Question ABelow is the relevant topic statement.
[Suppose there are two stars, one with 50% of the mass of the Sun and the other with the same mass as the Sun. The orbital period of this binary system is 30 Earth days. If there is a planet in this system, where is the planet's stable orbit? Describe the planet's stable orbit as best as possible. ]
The title information is not long, and the question is just one sentence.
However, it is not easy to sort out the most basic physical principles from the brief information and solve the problem.
