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

Chapter 31 Experimental Plan
Having learned his lesson, Xu Ling never turned on the Do Not Disturb mode again, and even turned off the Do Not Disturb mode for messages in the Penguin group.

It was also because of this that Xu Ling was the first to see the preliminary experimental plan posted by Ji Yun in the group.

[Purpose of the experiment: To study the magnification and resolution of the imaging system formed by water droplets on the glass surface.

Experimental equipment: glass slide, micrometer, optical microscope...

Experimental steps:

(1) Determination of magnification:
Choose a millimeter ruler as a standard measurement object and place it on a horizontal white background.

Place the slide on the stand and adjust the height and angle to ensure it is in a suitable observation position.

Place a drop of water, making sure it is a good size and approximately spherical.

Select a line segment (e.g. 2 mm) of the millimeter scale as the object to be measured.

Use a microscope with a micrometer eyepiece to measure the length of the image.

Finally, the magnification is calculated using the formula.

...]

I have to say that Ji Yun is worthy of being someone who has participated in experimental competitions. She is really reliable!
The entire experimental plan was written in two thousand words, and each step and related explanations were very detailed. Looking at the plan, Xu Ling felt as if he was already doing it.

Then the next step is to improve this plan.

Although this plan is already very good, Xu Ling believes that it can be even more perfect with everyone's brainstorming.

@Everyone, Ji Yun's experimental plan has been completed. We need to arrange a time to discuss it.

Xu Ling came straight to the point in the group.

Finally, after sufficient discussion and coordination, the time was finally set on Wednesday afternoon.

……

Xu Ling arrived at the laboratory very early, thinking about how to improve the experimental plan alone while waiting for the arrival of team members.

Xu Ling didn't have to wait too long before everyone arrived. Even the teaching assistant He Jiangran came.

"First of all, I want to praise Ji Yun for coming up with such a good experimental plan by herself.

Today we are discussing how to improve it, not to say that it is not good, but to strive for excellence.

Let’s start the discussion.”

Xu Ling's team leader aura became stronger and stronger, and the other members of the group listened attentively.

“Let me explain my experimental plan in detail, mainly some details that are not written down, so that you can think about the perfect method.

......"

As the first designer of the experimental plan, Ji Yun was the first to bear the brunt.

"Let me start with a very small point. The original experimental plan called for water droplets to be placed on the glass slide using a dropper. This way, the size and shape of the droplets aren't very precise. We should use a high-precision microsyringe."

Huang Yunfeng followed closely and pointed out a problem.

As he said, this was indeed a very small problem, and Ji Yun might not have considered that the school had better equipment.

Following Huang Yunfeng's train of thought, Liang Xiuyuan slowly spoke:
"To better control the water droplets, I think we should use a non-wetting transparent material as a slide to make the shape of the water droplets closer to a spherical shape."

Huang Yunfeng and Liang Xiuyuan's proposals instantly inspired everyone, and they all started discussing it.

"The white background plate can be made of a material with diffuse reflection properties and stable optical properties."

"I'd like to choose a microscope that can take pictures. I don't know if they have that. By combining images with computers, I can get more accurate results."

"I think we should also record some additional auxiliary data, such as environmental factors such as temperature and humidity, which will affect the water droplets. Our experiments require precision, so we have to take these factors into consideration."

……

Everyone opened their minds and came up with more than a dozen areas for improvement. Even Xu Ling was a little surprised.

The saying that there is strength in numbers is indeed true.

Considering that many optimizations are related to experimental equipment, Xu Ling asked He Jiangran:
"Teacher He, does your school have the equipment we just mentioned?" "Hmm..." He Jiangran thought for a moment and said, "We have those small equipment, like micro-injections and diffuse reflection background plates. But a microscope with a camera function might be a bit difficult to find."

"Really?" Xu Ling asked.

"Yes, there are some, but they are all in the professors' laboratories. It's not easy to give them to you."

He Jiangran looked a little embarrassed.

"It's okay, then we don't need it." Xu Ling said quickly.

Xu Ling said he didn't need it, but it was just to avoid making things difficult for He Jiangran. He was already thinking about how to use it.

After all, it can make the experiment more precise. Since it exists, why not use it?

Contact Zeng Boyuan and Liu Chunlin, they should be able to find a way. Judging from their qualifications, they should be senior enough.

Xu Ling thought secretly.

"Then I'll prepare the other experimental equipment you need for you. They're available in other laboratories."

Seeing that Xu Ling had no intention of making things difficult for him, He Jiangran breathed a sigh of relief.

"Then I'll trouble you, teaching assistant." Xu Ling responded politely.

Without a microscope, the experiment couldn't proceed. Xu Ling immediately called Zeng Boyuan.

"Hello, Teacher Zeng."

"Student Xu Ling? What's going on?"

"It's about experimental equipment. We want to use a digital microscope. But the teaching assistant told us that the student lab doesn't have it, only some professors' labs have it."

"Oh, that's a question. Indeed, better equipment can produce more accurate results. I'll go ask if there's a vacant one and lend it to you."

"Okay, thank you, Teacher Zeng."

"Haha, it's okay."

After hanging up the phone, Xu Ling told everyone in the group about Zeng Boyuan's attitude in their expectant eyes.

"Wow, Teacher Zeng is so nice, unlike that teaching assistant who was unwilling to find a solution."

Huang Yunfeng complained.

"You can't say that. The teaching assistant might just be a student. How can you compare him to Teacher Zeng?"

Ji Yun immediately pointed out that Huang Yunfeng's words were inappropriate.

Huang Yunfeng also realized that his words were inappropriate and smiled awkwardly.

Not long after, Zeng Boyuan called back.

"Teacher Zeng, how is it?"

Xu Ling asked impatiently.

"Haha, that's not difficult. I found one for you. It's from Zhao Yuanshan, Professor Zhao's lab, but if you want to use it, you can only go to him."

Zeng Boyuan said with a smile.

"That's natural. Thank you, teacher."

Xu Ling was already very satisfied with being able to use the equipment.

Immediately, Zeng Boyuan gave Xu Ling the contact information of Teacher Zhao, gave him a few instructions and hung up the phone.

"Done!" Xu Ling announced excitedly.

"Great! We can finally do the experiment." The other members of the group also felt relieved.

But there is not enough time today, and the microscope needs to be used in other laboratories, so I can only make another appointment.

(End of this chapter)