I failed a course, and the system became my study supervisor.

Chapter 40 Second Intensive Training

May 1st, 9:00 AM.

The small report room, which should have been empty during the May Day holiday, was now extremely lively.

Several elderly professors with gray hair sat side by side in the first row of seats, with about ten students sitting behind them.

At this time, one of the teachers stood up and strode towards the podium.

It’s Zeng Boyuan.

Clearing his throat, he said in a very sincere tone:

"Students, we're glad you were able to attend this training on time. We don't want to take up too much of your spare time, but time is tight and the task is heavy! I hope you can understand."

"So what about this training? As I mentioned before, each group will present their own lab reports. The teachers below would also like to hear your opinions, and I hope everyone will take them seriously."

"Okay, enough nonsense. Let's get started. The first group goes first!"

As soon as Zeng Boyuan finished speaking, a boy stood up not far away and walked quickly towards the podium.

Xu Ling didn't know the person, Yu Wenkai, the team leader of Group 1. After hearing Qin Qin's introduction, he found out that his name was Jiang Yuchen, a veteran who had also participated in the competition last year.

Jiang Yuchen quickly opened the PPT on the electronic screen and began to introduce it:
Our first experiment is the ping pong ball rocket problem. First, I want to briefly explain why a ping pong ball can be launched at such a high speed.

A cup containing water and a ping-pong ball is released from the air and, due to gravity, accumulates velocity and kinetic energy before colliding with the ground.

When the water cup collides with the ground, the kinetic energy is transferred to the water in the cup through a pressure pulse wave, causing the water to produce a jet.

The jet has a large initial velocity. After colliding with the ping-pong ball, the energy of the water will be transferred to the ping-pong ball again, enabling it to move.

Below is our theoretical proof of this process.”

Then, Jiang Yuchen presented a detailed theoretical proof to the audience, including the relevant formulas of pressure pulse waves, the solution of force fields, and the derivation of velocity fields.

Xu Ling was deeply shocked by the extremely complex differential equations and the constantly used Laplace transforms.

Except for Qin Qin, the other people in the group didn't react at all. Everyone else looked dumbfounded.

Xu Ling was very puzzled. When he got these questions, he always thought that experiments were the key points of these questions.

However, judging from the reports of one group, they placed more emphasis on theoretical derivation, while the demonstration of experiments was not that important.

About twenty minutes later, Jiang Yuchen from the first group had finished his report.

It's Xu Ling's turn!
But at this time, Xu Ling no longer had the composure he had before, and he was hesitant about the content of his report.

But there was no room for retreat now, so Xu Ling had to bite the bullet and start the report.

And things turned out just as Xu Ling had expected, not very good.

The teachers in the audience all looked serious while listening to Xu Ling's report, and some of them even frowned at the end.

Seeing this, Xu Ling became more nervous and took nearly half an hour to finish the entire report.

However, even though he had finished speaking, Xu Ling was still very nervous.

"Okay, Xu Ling, please come down first. Leave the report there."

Zeng Boyuan walked up to the podium as he spoke.

Back at his seat, Xu Ling still couldn't calm down, constantly wondering how Zeng Boyuan would criticize him. "It's okay, don't worry, it's fine now."

Qin Qin patted Xu Ling's shoulder and comforted him.

Xu Ling forced himself to remain calm and nodded.

For a moment, the atmosphere in the entire group became tense.

At this moment, Zeng Boyuan spoke:

"The first group's report was very well done. Both the theory and the experiments were presented in great detail. Further analysis and research on related issues is needed."

However, just after praising the first group, Zeng Boyuan changed the subject:
"But the second group's report wasn't good enough. I suspect this is because most of the students in the second group lack experience. Several teachers expressed their understanding. But this result is unacceptable. Now let me explain where your problems lie."

"First, the direction of your entire topic is wrong. You've taken it for granted that the experiment is the core of the problem. In fact, if you carefully review the reports of previous competitions, you will find that these problems focus on theoretical derivation, and the experiments are just a verification of your theory."

"Second, when you were trying to improve the resolution, you thought of using a vacuum to reduce the impact of ambient airflow. This is correct, but you also assumed that a droplet shape closer to a spherical shape would be more effective. This is because you didn't rigorously deduce the effect of droplet shape on resolution and magnification."

Although Zeng Boyuan initially expressed his understanding of Xu Ling and the group, his subsequent words were almost equivalent to a complete rejection in the eyes of Xu Ling and the group.

The mood of the group members instantly fell to the bottom, even Qin Qin, who joined the group later, looked very bad.

Only Mu Yuehan, who was already sitting with a group of members, still had a smile on her face.

Among all the people, the one who felt the most uncomfortable was Xu Ling.

Xu Ling used to be complacent about his insistence on using the vacuum method to improve the resolution, but he did not expect to receive such an evaluation now.

Noticing that Xu Ling and the others looked unhappy, Zeng Boyuan quickly said:
"Xu Ling, don't worry too much about these issues. As a freshman, it's normal to be inexperienced in your first competition. Just make the necessary adjustments as quickly as possible. Don't be too hard on yourself."

I believe that with your ability, it will not be difficult to perfect the theoretical derivation."

Yes, if there is a problem, just correct it. What theoretical derivation could be more difficult than the derivation of the global solution of the incompressible Navier-Stokes equations?

Xu Ling's mentality immediately calmed down a lot, and he took this issue more seriously.

Thinking about the previous experiment when he had laughed at the simplicity of measuring magnification, Xu Ling suddenly felt his cheeks getting hot.

Without caring about the mental state of Xu Ling and the others, Zeng Boyuan returned to the main topic:

"Overall, the presentation task of this report was successfully completed. I hope that both groups of students will continue to work hard, solve any problems they encounter, and continue to improve.

The next training session will be a simulated confrontation. We, the teachers, will be the commentators, and you two groups will be the pros and cons.

Who is on the pro side and who is on the anti side? Let's decide now so you can prepare."

Determine the pros and cons!
Xu Ling's attention was instantly focused on these words.

The other students also turned their attention to Zeng Boyuan.

Finally, Zeng Boyuan suggested that the leaders of the two groups decide by rock-paper-scissors.

Yu Wenkai provided the scissors, and Xu Ling provided the cloth.

Then Yu Wenkai chose first, and he chose the affirmative side.

The opposing side is naturally Xu Ling's group.

(End of this chapter)