Rebirth 08: A Happy Life Begins in Elementary School

Chen Nian believed it.

But he didn't understand.

"You can suddenly figure this out? I thought push-ups were that effective."

Li Zhao stood up, raised his racket, and said, "Everything can be explained by knowledge."

"For example?"

"You'd say that to hit the ball higher, farther, and faster, you need to swing the racket faster, right?"

Chen Nian nodded.

"So, how can I increase my swing speed?"

"Push harder."

"You're a little bit right. We're about the same strength, so no matter how hard we try, it'll be the same." Li Zhao said, pulling the racket head back. "Look, if I rotate my wrist and forearm from this position, doesn't the racket head swing in a big circle from behind to the front?"

"what……"

"So, when the racket hits the ball, the speed will definitely be much faster, much faster than just a little bit. Conversely, like you," Li Zhao began to imitate Chen Nian's movements, "your speed in completing the movement is about the same as mine, that is, the angular velocity is about the same, but the linear velocity of our racket heads is much different."

Etc., etc.

Chen Nian understood the part about fast swing speed, so why did he suddenly start using some incomprehensible vocabulary?

One second Li Zhao was patiently guiding... no, he was patiently teaching, but the next second he jumped off course!

"Oh, so angular velocity and linear velocity are like this..."

Li Zhao explained it again, and Chen Nian understood and slowly nodded.

"Just based on this, you suddenly become amazing?"

"Of course it's not just that... Tell me, why does the ball fly away when the racket hits it?" Li Zhao said.

"...Because it will fly out."

"momentum."

???

Chen Nian felt a strong itch on his head, as if his brain was about to grow.

"What is this thing?"

Momentum is a vector physical quantity that describes the state of motion of an object. Its magnitude is equal to the product of the object's mass and velocity, and its direction is the same as the direction of the velocity.

"what……"

"Well, you don't need to understand this too deeply. In short, according to this theorem, the faster your speed at the moment of impact, the faster the ball will fly. So, besides increasing the backswing distance as mentioned earlier, what other factors affect this?"

Then came things like "the same principle applies to tension," "differences in ball speed represent gaps in power," and "elastic potential energy"...

Chen Nian almost knelt down.

I was originally planning to beat Li Zhaoshuang on the court and have some fun, but it inexplicably turned into a class.

"Ah Zhao," Chen Nian, exhausted both physically and mentally after the game, lay back in his chair, "where did all that talk about speed, momentum, and bounce come from?"

"Physics knowledge for junior and senior high school students".

"You know all this? And when did this happen...?"

I learned it during winter break.

Chen Nian raised his thumb and was speechless for a long time.

Although the third book of "The Three-Body Problem" has not been released yet, his understanding of "dimensional reduction attack" is already very profound.

Li Zhao originally thought that playing this game would at least increase his happiness level.

Surprisingly, the score didn't rise even after the game ended.

Perhaps it's because my childhood illusions have shattered.

Returning to the old court, I found it to be terrible. Chen Nian, whom I remembered as someone I couldn't beat, turned out to be a complete novice. As for showing off in front of Chen Nian... I'm used to it.

It's like a curse on the soul of middle-aged people.

When Li Zhao woke up the next day, his whole body ached, and he couldn't help but fall asleep again in the afternoon.

His movements were standard, but his body was weak; he needed to exert extra effort to complete the standard movements.

Therefore, it was particularly sore.

No wonder the child's kung fu is so powerful. At such a young age, he didn't have enough strength, so he had to force himself to use the most correct way of exerting force. When he grew up and had strength, how could his force exertion not be thorough?

He didn't feel better until dinner that evening, when he felt a comfortable soreness all over his body—he could clearly feel that his strength had increased.

The joy of exercise lies in achieving effective results. Happiness +2, Total 33

October 5th, Sunday.

Make-up classes by adjusting work hours.

Everyone seemed to be in low spirits, whether they were students or teachers.

After a holiday break, Li Zhao's influence as "number one in the country" took on a completely new form among his classmates—awe.

It's easy to understand.

There aren't many people like Chen Nian who can so easily let go of the pressure their fathers put on them.

Those who can clearly realize just how strong Li Zhao is are all kids who already have good grades, or who have a good relationship with Li Zhao, or who have long been in awe of him.

The overall atmosphere is determined by the majority of relatively ordinary children.

They didn't even have a concept of being first in their class, so naturally they didn't know what being first in the country meant.

After returning home and being thoroughly analyzed and pressured by his parents, he finally understood one thing—Li Zhao was not from their world.

Everyone is dreaming about the future, but most of them can only dream. Li Zhao is probably even more amazing than they imagine.

The number of people coming to Li Zhao for questions plummeted, and things seemed to have quieted down again, much to Li Zhao's dismay as he had just finished writing his essay writing guide.

Li Zhao noticed a piece of paper pasted on the old pencil case, with a string of artistic lettering written on it:

"Knowledge is power (as is sports)."

This kid...

"Here you go." Li Zhao folded up three A4 sheets of paper and handed them to Chen Nian.

"What the heck?"

"Essay Writing Secrets"

What He Lin said on the podium was no longer audible to Chen Nian…

He took the "secret manual" from Li Zhao with trembling hands, his breathing rapid.

"Can I watch it now?"

"Let's start class."

"Aren't you going to give it to Shuyao?"

"She doesn't need it."

Ok?

Chen Nian suddenly felt that the secret manual in his hand wasn't so appealing anymore.

He Lin saw all of this clearly; in essence, Li Zhao had passed a note and whispered a message to Chen Nian.

But it doesn't matter, because that's Li Zhao, someone a teacher can't criticize casually.

When Li Zhao met He Lin's gaze, He Lin even looked away slightly.

Privileges are too conspicuous.

Li Zhao suddenly realized that because of the special nature of his rebirth, it would be easiest to obtain privileges during elementary school, while it might be the most difficult during middle school.

Junior high school Chinese still requires memorization; math needs to be familiarized, and difficult problems may not be easy to handle; physics, chemistry, biology, politics, history, and geography all need to be studied again; only English can maintain a superior advantage.

As Li Zhao had previously analyzed, his unique advantage was that he could learn something new from a fresh perspective, and perhaps even gain some entirely new insights.

Why don't we just learn it first?

Anyway, New Taipei No. 6 Elementary School basically doesn't care about his classroom performance anymore. His genius status has long been established, so it's normal for him to learn junior high school knowledge in class.

"Chen Nian, does your cousin still have his junior high school textbooks?"

On the way home from school, Li Zhao asked a question that Chen Nian had never expected.

"I'm definitely here. What do you want?"

He Shuyao, who was to Li Zhao's right, was also very curious.

Now everyone has to walk to the pedestrian street exit after school, and it's very lively along the way.

"See if I can borrow his junior high school textbooks."

"Um...um..." Chen Nian scratched his head, looking troubled. "I suggest we don't..."

Why?

"My cousin has a lot of freedom when it comes to studying, and I'm afraid that if you read this, you'll be corrupted by him."

...Is the wording really that strong?

This really piqued Li Zhao's curiosity.

"What do you need junior high school textbooks for?" Chen Nian asked.

"Learn it in advance."

Surprisingly, neither of them seemed particularly shocked.

"Let me think about it. Forget about my cousin's. I have an older cousin who's in her final year of junior high..."

"Forget about the third year of junior high, can we still buy the textbooks?"

"Oh, it seems..."

"I know a place," He Shuyao interrupted Chen Nian, looking at Li Zhao. "I'll take you there this weekend."