Chapter 1

"In the courses we have learned, both gravity and electrostatic force have one thing in common. The formula describing the strength of force is inversely proportional to the square of distance.

They are the law of universal gravitation and Coulomb's law, and their common feature is called the inverse square law. "

In the classroom of class 5, grade 2, Huanggang middle school, the physics teacher saw that the students looked listless one by one, so he was ready to tell some extracurricular content to refresh the students.

On weekdays, this situation is nothing more than those topics, the teacher's own crosstalk, the gossip and interesting stories of scientists, and the latest achievements in some scientific research fields... Of course, this is also a good time for teachers to sell private goods.

All the students under the podium put down their work, raised their heads, looked at the teacher with expectant eyes, and enjoyed the rare good time of the day.

The only student named Liang Shicheng still bowed his head and carefully wrote the problem-solving process in a notebook.

"Not only gravity and electrostatic force, but also magnetic force, that is, Ampere force, has such properties.

When two parallel wires are connected with current respectively, they will produce ampere force of the same size to attract or repel each other.

I can now tell you that there is also a formula for the ampere force generated between two parallel wires in an ideal state. "

Just after the speech, the physics teacher found a space on the blackboard and wrote a formula FA = ki1i2l ^ 2. The students then picked up their notebooks and pens to write it down.

"Don't remember! I can't take this test! "

"In this formula, there is no need to know the magnetic field strength, only the current strength of the two wires and the distance between the two wires, and the ampere force attracted by them can be calculated.

According to this formula, the ampere force at this time is also inversely proportional to the square of the distance between them, and the law of inverse square can also be seen. "

The teacher stopped to have a drink and left the students time to think.

"There must be a deeper reason why nature prefers the inverse square law so much.

If anyone can find out the connection between them, find out the secret.

Then who can win the Nobel Prize in physics. "

Just then, Su Chang, Liang Shicheng's lesbian, poked him in the arm and said to him:

"Hey, don't you have any ideas about this problem?"

"This road is impassable."

Liang Shicheng finally stopped his work, found a piece of draft paper on the table and wrote down a formula.

G μν= R μν- 12Rg μν= 8πT μν Gc^4

"This is the gravitational field equation, which is the original appearance of gravity.

The concept that the teacher said is more strictly called the inverse square gravity force. In this equation, gravity is not an inverse square gravity force at all.

In addition, according to the gravitational field equation, gravity is actually nonlinear, but the electric field in electromagnetics is linear.

So in fact, gravity and electrostatic force are very different in more advanced theories. "

Su Chang was not surprised at this scene and habitually nodded.

Liang Shicheng continued:

"As for the deeper relationship between magnetic force and electrostatic force, according to the explanation of relativity, magnetic force is the relativistic effect of electrostatic force.

You can write down this proof process by giving me a piece of paper, but proving this thing will never win a Nobel Prize, because this is in the Feynman handout of the popular textbook. "

After hearing this, Su Chang sighed, "the current educational situation is that the students with middle and lower school performance in the past are the children of the students with top educational performance."

After a while, the bell rang after class. Liang Shicheng just got up from his seat and planned to go to the corridor to breathe fresh air. Suddenly, he felt a pain in his chest and an inexplicable sense of loneliness hit his heart. He felt difficult to breathe and finally fell down in the classroom.

"Liang Shicheng, what's the matter with you ···········" I remembered the voice of my classmate.

In a twinkling of an eye, more than ten years have passed. The original symptoms are good. After a period of time, they have relapsed recently.

An attending physician in the third hospital said in earnest:

"Oh? You mean, this discomfort happened when you were a child, but it didn't attract the attention of you and the school, so it didn't end?

Why didn't you have a comprehensive examination like this earlier? The good news is that it is still benign at present. It's just because it compresses the nerve and causes abnormal discharge. If you want to cure your current disease, you can just remove it as soon as possible. "

"No, after calculating the postoperative conditioning, I really can not get out of this time." Patient Liang Shicheng said calmly, "just give me some drugs that can relieve this feeling, just like last time."

This is Liang Shicheng now. His ability is not low, but he has been teased by fate.

Liang Shicheng worked in a UAV company. After years of hard work, he finally became the manager of the software department in the company, managing more than a dozen people.

This is a valuable opportunity for him, when he needs extra energy.

At this juncture, a bad news hit. He was found to have a tumor in his brain. The initial impact was that he would feel a strong sense of loneliness from time to time, followed by a sense of decadence, which made him sometimes unable to concentrate and devote himself to his work.

For mental diseases, most people actually don't go to the hospital for examination, and many of them don't know their abnormalities at all.

Liang Shicheng also went to the hospital to know that his current situation is very abnormal, which is caused by abnormal discharge in the brain.

The doctor took the functional MRI scan he had done before, pointed to it and told him that this situation was not formed in a short time, or that he was abnormal when he was young. This state should seriously affect his life.

Liang Shicheng just retorted with disapproval: "it's impossible. I think I've always been normal. It just happens occasionally recently, which slightly affects my work efficiency.

I mean occasionally. "

After buying medicine on the first floor of the hospital, Liang Shicheng stepped out of the door of the hospital. Although the psychotropic drugs he took during this period made his condition better, his mind was not clear, and the whole person seemed listless.

Then he went home nonstop and took out a box of salty peanuts and a bottle of coke with a lot of salt from the refrigerator. At the moment, Liang Shicheng felt like a walking corpse. Only these things in front of him could arouse his spirit a little.

"When can I end this state?"

After dinner and a little stay, he sat at his desk and continued to work. He was busy until half a night, made up for the time lost during the day, and finally completed the task of the day.

The next day he woke up at seven in the morning. Liang Shicheng looked at his mobile phone and decided to give himself another two minutes to take a nap and get up.

But after closing his eyes this time, he saw a bright line of words in the dark background.

[history] [exchange of points] [mode switching]

Liang Shicheng felt something was wrong and immediately opened his eyes. Then the line disappeared. In his sight was the ceiling of the room. Everything was normal.

But when he closed his eyes and saw this line again, Liang Shicheng suddenly became energetic and sleepless.

"I can't manage so much. Go to the company first and then study it."

When I opened the gate, a bright sunshine came to my face. In front of me was the familiar road, but the pedestrians on the road were different.

Liang Shicheng noticed that there were several lines of Chinese characters on everyone's head at the moment.

Because he was moving and didn't see very clearly, Liang Shicheng carefully stared at the nearest passer-by, but she glared back.

It seems that this group of people don't think they are strange, and rush on their way as usual.

Liang Shicheng now understands that only he can see the words on these heads.

When I came to the company, sure enough, every employee of my subordinate also had those lines of Chinese characters on his head.

Liang Shicheng looked carefully at one of the employees. The employee smiled at him with coffee in his hand.

[work efficiency] 18%

[alertness] 48

[blood glucose content] 35

[cerebral blood supply] 20

[concentration] 30

"What a mess this is."

The properties displayed on other heads are slightly different in some values, but almost the same in general.

Liang Shicheng doesn't understand the usefulness of the following four attributes, but he is very interested in the work efficiency at the top. The work efficiency of employees ranges from 15% to 22%.

At a glance, after reading the attributes of the employees, Liang Shicheng cared about himself.

So Liang Shicheng looked up at the ceiling, but he didn't see anything, so he had an idea and took out his mobile phone from his pocket as a mirror.

[work efficiency] 3%

[wakefulness] 5

【 blood glucose content 】 25

[cerebral blood supply] 8

[concentration] 3

"How can I be so efficient!!!"