The aroma of crucian carp tofu soup at home has not yet dissipated. Lin Zhaoxi returned to her room. In the dead of night, the review materials for the teacher's exam were still spread out on her desk.
After Lao Lin got sick, he was no different from a magic stick.
Sometimes I suddenly recall the past, sometimes I cook chicken soup, and I suddenly torture my soul. Lin Zhaoxi tried her best not to think about Lao Lin's last words, but how could she not
As the daughter of a former mathematician, her mathematical foundation is indeed not bad.
When she was a child, not only was Lao Lin's introduction to her mathematics very unreasonable, but she herself was also very interested in mathematics, and she was even very happy every time she took the Math Olympiad class.
If she sticks to the way she was when she was a teenager, although she won't be as powerful as Pei Zhi, she won't feel inferior because of ignorance when facing that question.
But I don't know when, she gradually stopped going to class and stopped reading any books related to mathematics in the library.
She was afraid of mathematics, terrified and disgusted by it, and she deeply believed that it was the realm of genius, beyond the reach of mortals.
Thinking of that time, Lin Zhaoxi felt chills all over, and hurriedly stopped her thoughts from overflowing.
The path of life has deviated a long time ago, so be it. The most important thing now is Comrade Lao Lin.
Lin Zhaoxi rubbed her face in a hurry, turned on the computer, found the content of arranging the living environment for Alzheimer's patients, and prepared to do something that is not so easy to think about.
Alzheimer's manifests as short-term memory decline, but long-term memory can be recalled.
Therefore, you can put items that make them feel comfortable and happy in a prominent place at home, such as nostalgic photos, favorite plants...
People with Alzheimer's disease often can't tell which door is their own, so special marks can be made on the door to help them distinguish.
Lin Zhaoxi pulled out a sticky note and wrote down the precautions.
Something that can make Lao Lin feel comfortable and happy, but nostalgic
Does she want to find some proof process of Fermat's last theorem to hang on the wall
Thinking that in the future, the walls of the house may be covered with mathematical theorems and formulas, which is really a bit emotional.
Lin Zhaoxi read through a bunch of materials and summed up the main points. The primary problem is that Lao Lin tends to forget to bring the key. If the key is the key, changing the fingerprint lock can solve it.
But the new village they live in now is a large old-fashioned residential area with hundreds of buildings, and each building has its own small courtyard. If Lao Lin comes back from the house and sees these courtyards that look exactly the same, it is easy to get confused.
Gotta make a fuss about the gate and fence...
She stuffed the note into her pocket, changed her shoes and went out.
It was late at night, the street lights in the old residential area were scattered, and there was no other sound except for the screeching of wild cats.
She walked across the patio, pushed aside the morning glory on the slanted door frame, and stood outside the courtyard wall.
At her feet, is a whole box of chalk.
She raised her head slightly and looked at the entire wall.
When they were young, their family still lived in a small one-story house in the city center. Although the house was leaky, it had a small patio. Lao Lin works during the day and serves dishes in restaurants at night.
At nine o'clock at night, she would sit at the door of the house and wait for Lao Lin on time.
The starlight in the summer night is beautiful, and Lao Lin always brings back snacks, and he never feels tired at all.
They sat under the loofah vines in the courtyard and ate snacks together. Lao Lin would fight her every time, which was extremely shameless.
While eating, Lao Lin would tell all kinds of messy scientific stories. What Pasteur discovered the hidden asymmetry of hydrochloric acid crystals, Franklin and the lightning rod...
The nearby children will also come to listen together, after all, Lao Lin's storytelling is really interesting.
Only once was it particularly fun.
When Lao Lin was telling a story, he was bullied by the son of a nearby professor.
Secondary school kids are more terrifying than middle school boys. The kids said that what Lao Lin said was useless, and the real science was extremely difficult. Lao Lin was fooling them with silly stories.
In fact, there is nothing wrong with it...
But that kid started reciting Newton's three laws and the Pythagorean theorem on the spot, which was quite scary.
Lao Lin didn't say anything at first, just smiled and listened. When the children had finished reciting a series of formulas, Lao Lin stood up and did something that Lin Zhaoxi thought was still in his second grade.
He took the child's hand and walked out the door, took a small half of a red brick from the side of the road, and wrote a formula on the courtyard wall by the street lamp.
E=MC2 (square)
Lao Lin: "Do you know what this is?"
"Einstein's!" said the little boy proudly. "Relativity!"
Lao Lin was noncommittal, picked up a small brick, wrote another more complicated formula on the wall, and asked, "What about this one?"
The second formula starts with R and has superscripts and subscripts.
Lin Zhaoxi was dumbfounded, and the little boy was speechless.
But if you stop at this time, it’s not Lao Lin. He continues to write, and the third one is an expression, something expanded with brackets...
Anyway, Lin Zhaoxi couldn't understand it either.
After writing this, Lao Lin has not stopped. The following formulas, theorems, and equations are beyond words.
One formula after another accompanied the bricks in Lao Lin's hands, and gradually emerged under the dim light of the street lamps, until they covered the entire courtyard wall.
In the end, Lao Lin threw away the red bricks that were left with little bits and pieces of writing, and said to the little boy, "Continue to recognize it?"
Lao Lin looked very proud.
The little boy blushed and was too suffocated to speak.
After a while, Lao Lin walked slowly to the second equation that started with R, but his tone was unexpectedly calm.
"This is the field equation in general relativity," he said.
"This is the expression of special relativity."
"It's the Dirac equation."
"This is the Chen-Gauss-Bonnet theorem."
"This is the Lorenz equation."
"..."
"This is Maxwell's equations"
Finally, Lao Lin slowly returned to E=MC2 (square), and said, "And this is not the theory of relativity, it is Einstein's mass-energy equation."
Speaking of this, the little boy finally burst into tears. A group of them looked up at the formulas all over the wall, at a loss.
At that time, Lao Lin squatted down, wiped the little boy's tears with the back of his dirty hand, and asked, "Why are you crying?"
The child who was pissed off couldn't say anything other than crying.
Lao Lin said to himself: "Do you think I am bullying you as an adult, feel ashamed in front of children, or do you think these formulas are too difficult and will collapse?"
Lao Lin: "But you obviously did the same thing as me in front of other children just now."
"Isn't it annoying to show off just because you have a good memory?"
The little boy cried even louder. Lin Zhaoxi looked around, afraid that the little boy's family would rush out and beat Lao Lin.
But Lao Lin, he would be a ghost if he cared about these things.
"There will always be someone with a better memory than you," Lao Lin said.
"When you only remember the formula on the surface, anyone who memorizes more than you will make you heartbroken."
"Why? Because you don't know anything."
"You can memorize formulas, and all you see are those broken characters and the eyes of others praising you, but in fact, these..." Lao Lin poked the entire wall, and then pointed to the sky above their heads with one finger. Xinghai, "It's that one."
"Star?"
Lin Zhaoxi muttered to herself, and then received a note from her father.
"Please call it the universe."
"oh."
If next, the children want to ask what is the universe, then this story will become endless. Apparently, near nine o'clock in the evening, most children will not have the patience to listen to a spirited young man explain the cosmic truth behind each formula.
So when Lao Lin talked about the Pythagorean theorem, people almost dispersed.
Lao Lin was talking excitedly, and when he came back to his senses, only the crying little boy was left in front of him.
Lin Zhaoxi squatted at the door watching them and yawned.
Lao Lin then threw the bricks and began to summarize his statement: "In summary, it is meaningless to memorize the formulas. At your age, you still can't understand the true meaning behind them, so what's wrong with me telling some interesting scientific stories? "
Lin Zhaoxi: "..."
Little boy: "I...my father said...you must know how to recite it."
"What your father said is not as correct as what her father said."
At that time, she was already sleepy, but she vaguely remembered that Lao Lin pointed at her and said proudly.
In short, in her memory, this is a very outrageous story.
Lao Lin is high-spirited and will grab children for brainwashing science education.
And she is still very young, in front of her is a long and full of possible life path.
not like now...
Not at all.
The phone vibrated, and Lin Zhaoxi recovered.
She turned on the screen, and there was a WeChat message on it.
Xiao Liu—[My father knows the director of the brain department of the Sixth Hospital. We will have dinner together tomorrow. I will introduce you.]
Holding the phone tightly, raising her eyelids, she took a deep breath.
In front of the log-colored door panel, she bent down, picked up the chalk on the ground, took a step forward, and wrote down the first formula that Lao Lin wrote down on the wall that year.
E=MC2 (square)