At five minutes to nine o'clock, the sign-in for the provincial team training camp was completed.

After finishing his last cigarette in the corridor, Teacher Xie walked into the classroom without looking at anyone. He walked to the blackboard, picked up the chalk and wrote three crooked characters -

Resolve their differences.

After finishing writing, he threw down the chalk and pointed on the blackboard.

"You see clearly, there are many disputes among them, don't write them as Liu Jifen's Fen for me."

Amidst the scattered laughter, Jie Qifen sat directly on the podium and nuzzled at the people in the same class as if chatting: "There are only seven days in total, let's not waste time. I have two here for this training camp."

There are only one path to take, and time is limited. So let me ask first, who wants to get closer to the truth of physics? Raise your hand."

This first sentence leaves people stunned.

But three or five people still reacted and raised their hands high, including Qi Yingnan.

"Okay, I understand." Jie Qifen then asked, "Whoever wants to improve their performance in the competition, please raise your hand."

This time, seven or eight people raised their hands in uncertainty, but Qi Yingnan never put his hand down.

"You didn't raise your hands twice, why are you here?" Jie Qifen shook his head and said with a bitter smile, "Okay, okay, I know it's a difficult choice for you, let's do it again -"

"If you want to get closer to the truth of physics, I will take you to visit a real scientific research laboratory for the experimental training part. If you have the opportunity, you can get started. I will teach you cutting-edge knowledge for the theoretical part."

"If you want to improve your competition scores, let's do the exercises and give lectures. The most important thing our university lacks is competition champions. Having them explain to you is more effective than any teacher. I will help you come here one by one."

"Time and resources are limited. We can only take one of the two paths, and the minority must obey the majority."

"Now, if you want to get closer to the truth of physics, please raise your hands. If you want to improve your grades, just don't move."

After the explanation, only two people raised their hands, fewer than the first time.

There is a male Qi Ying, and a junior auditor.

"Okay, I understand." Jie Qifen showed no unnecessary expression. He jumped off the podium and said to Lu Yang, "Please organize it. We will gather in the basic teaching laboratory at 9:30. I will go out and pick up the two physics competition experiment champions.

.”

After giving instructions, he put his pocket in his pocket and walked out of the classroom, already taking out a cigarette and putting it in his mouth.

Although people in the class don't understand this teacher, if they can really invite the experimental champion to provide guidance, it will definitely be more effective than most university teachers just for the competition.

Lu Yang was very innocent. The opening speech of the training camp was originally the responsibility of the vice-dean, but now after pushing and pushing, he could only be allowed to come as an ordinary student.

Alas, there is no other way. In order to protect my health, I have to bite the bullet.

Lu Yang walked up to the podium and sighed and said: "I'm sorry everyone, Teacher Xie is more individual, but he is actually the first ipho champion in our country. He was only 16 years old at the time. The reason why he didn't get full marks is because he

My English is so poor that I couldn’t understand the questions.”

Buzz!

The whole class was surprised.

Is this Ji Da? Can anyone out there be at this level?

A student couldn't wait to ask: "Since Teacher Jie became famous so early, he must have achieved a lot now, right?"

"Well...scientific research requires hard work...and there is an element of luck." Lu Yang said awkwardly, "But please rest assured, Teacher Xie's understanding of the competition must be the best in the school. He will not be able to do this training."

easy."

After Lu Yang said these words, he suddenly felt like he had grown up.

I lie to the whole class without blinking an eye. Have I become so mature without realizing it?

Another student below asked: "Senior, when we see him, should we call him Professor Xie?"

"Well...he doesn't really like the title of professor. Let's call him teacher. In fact, it doesn't matter if you call him by his first name. He doesn't mind." Lu Yang clapped his hands and said, "Okay, let me tell you a few things to pay attention to.

place……"

…

In the courtyard of the Wuyuan, Li Zheng was sitting alone on a stone bench, not in a hurry to leave.

As the saying goes, even if you come from far away, even if you just breathe the physical air, it will be great.

Thinking back to the past, let alone Ji University, even the University of Science and Technology and the University of Science and Technology themselves did not dare to think about it. Compared with people like Lin Yujing, they were in two worlds and could not even see each other.

But now, he is truly sitting here, only a stone's throw away from his most ambitious goal.

I don’t know what it will be like when I go to college.

In the midst of my reverie, a smell of flue-cured tobacco wafted over me.

Li Zheng frowned and turned his head. Xie Qifen just put out his cigarette, put his pocket in his pocket and sat next to Li Zheng.

"Don't think about it, it's meaningless." Jie Qifen patted Li Zheng on the shoulder, "If you really like it, go abroad. ipho is a good opportunity."

"?" Li Zheng subconsciously moved to the side. Considering that the other party was Teacher Ji Da, it was not easy to refute him face to face.

"Li Zheng, right?" Jie Qifen pointed at the teaching building and smiled, "When you look up at it, you can only see the side exposed to you, and you will imagine that it is particularly sacred and beautiful. When will you actually climb up there?

Now, it’s time to see what filth is.”

Li Zheng stood up directly after hearing this: "If this is really the case, why don't you go abroad, Teacher Xie?"

"My English is not good." Jie Qifen nodded seriously, "English is the most annoying thing for me."

"..."

"Haha, okay, you can do what you like, stop nagging." Jie Qifen also stood up and walked out. After walking seven or eight steps, he suddenly turned back and said, "Learn mathematics well, and the more you can learn, the better.

It’s not just a competition, it’s also very important in the future.”

"Hmm..." Li Zheng nodded doubtfully.

This advice is really concise.

…

After leaving the Institute of Science and Technology, when Li Zheng was about to leave, he happened to pass by the breakfast stall that he often visited during the chemical provincial team training. Thinking that his tofu puffs were quite delicious, he wandered over and asked for a bowl.

Seeing that Li Zheng was familiar with the food, the stall owner filled the tofu curd a little more and sprinkled more coriander on it.

Just as he was about to hand it to Li Zheng, Li Zheng suddenly raised his hand and said: "Another 2/3 spoonful of marinade, thank you."

"Oh?" The stall owner then refilled a spoonful for Li Zheng and chuckled, "Young man, aren't you afraid of the salty taste?"

"It's not salty." Li Zheng took the bowl confidently, "You gave me a lot of tofu and coriander today. If I don't add more marinade, it won't be flavorful enough."

Only then did the stall owner notice that it turned out that he had formed a habit by adding more seasonings. He obviously gave others more tofu, but forgot to add the corresponding marinade.

Such a miscalculation should not appear at an old breakfast stall.

On the one hand, the stall owner felt quite ashamed, but on the other hand, when he looked at Li Zheng again, he couldn't help but be in awe.

Unexpectedly, this familiar young man is already an experienced tofu brain eater at such a young age.

When the stall was about to close and there were not many customers, the stall owner looked at the young old diner with great interest.

On Li Zheng's side, he sat down with the tofu noodles, lit some spicy oil, picked up a spoon, and slowly and slowly made a whole area that was half spicy and half not spicy.

The stall owner looked at the spoonful of tofu puffs and couldn't help but nodded in conviction.

Here, the level of eating tofu brain is demonstrated.

On the one hand, if you want to have a uniform taste, you must stir properly.

However, once stirred, the whole texture of the tofu will be destroyed. The originally smooth piece of tofu will become fragmented and tasteless.

For real old diners, when you take a spoonful of it, it must be a whole piece of tofu, plus just the right amount of marinade and spicy oil.

I, indeed, did not misjudge the person.

After Li Zheng took a spoonful of it comfortably, he pursed his lips happily, then looked at it for a moment, and then steadily took out the next spoonful.

After eating three or five spoonfuls of it, the stall owner already showed a happy smile.

Huh, this kid's attainments are more advanced than imagined.

It should be noted that every spoonful of tofu brain should be carefully distributed and the seasoning should be evenly distributed.

If only white tofu is left at the end of the meal, it will lose its flavor.

If only the seasoning is left, the previous experience will not be the best.

To put it simply, it would take more than ten years to achieve even distribution of every spoonful.

To put it bluntly, this is a mathematical problem.

Assume that the total amount of tofu is x cubic centimeters, it takes y spoons to eat, and the size of each spoonful is approximately the same.

Let the total amount of seasoning be z ml.

Then, each spoonful corresponds to x/y cubic centimeters of tofu curd and z/y milliliters of seasoning.

Plus the uncertainty of cilantro and spicy oil.

If you want to achieve perfect distribution, you must introduce calculus and limits.

But even if you achieve perfect calculations, you still have to face the inaccuracy of human visual inspection and the instability of human hands.
To be continued...