When he woke up in the morning, Lin Nan got up from the bed with his confused eyes.

As soon as I arrived in the dining room, I saw a sumptuous breakfast on the table, noodles and fritters and longevity noodles.

Lin Wolf smiled and said to Lin Nan: "Wake up, I wish our son a happy birthday, 13 years old!"

Ye Xinlan on the side was also full of smiles, and she didn't see yesterday's anger at all.

Lin Nan said happily: "Thank you, Mom and Dad!"

The wolf saw the pear vortex on his son's face that appeared with the smile on the corner of his mouth, and his round face slowly became thin and sharp with the arrival of youth, and he was like a sunny boy.

Lin Wolf was very happy in his heart, what could be more gratifying than the innocent smile of a teenager, let alone his own child.

In the midst of laughter, the family finished breakfast, packed their luggage and set out on the way home.

Lin Wolf thought for a long time last night, where should he take Lin Nan to play today? Is it to climb the mountain to enjoy the scenery from above? Or to the sea to feel the boundless vastness? Is it to go to the big city to see the high-rise buildings? Or is it ......

In the end, Timberwolf decided to go back to the place where he was raised.

Because knowledge comes from life, but also from nature.

Drive this strange and familiar Santana on a country road.

The car had been phased out, and Timberwolf remembered that he had changed to a brand new Audi shortly after the New Year, but it was a different kind of driving now.

The alpine jungles on both sides, the greenery is mixed with more and more gold, and autumn has come to an end.

On the right side of the road ahead, the shadow of a four- or five-storey building appeared vaguely, and as the distance slowly approached, the five big characters of "Longteng Science and Technology Park" appeared in the sight of the wolf.

Lin Wolf smiled, he knew this building, and he also knew the "Longteng Technology Co., Ltd." behind it, a local star enterprise.

He laughed not because of this company, but because this building existed when Lin Nan first came to the county seat in his car, and Lin Nan saw such a spectacular building for the first time at that time, so he couldn't help but look at it a few more times, so that every time Lin Wolf drove by here, Lin Nan would stare at the building.

Until one time passing by, Lin Nan said something that made Lin Wolf and Ye Xinlan cry and laugh: "Dad, I will definitely buy a building like this in the future." ”

Young and frivolous, Timber Wolf estimated that this building would be at least tens of millions now, and it would rise wildly in a few years.

Later, Lin Nan finished junior high school in the city, gradually grew up, understood more, and broadened his horizons.

When the family passed by the building again, Lin Nan was silent.

Thinking of this, Lin Wolf took out his left hand to hold the steering wheel, gently touched Lin Nan's little head with his right hand, and said, "Son, do you remember this building?

Lin Nan's immature face showed a slightly red smile, he remembered the Haikou he boasted about three years ago, and he was a little embarrassed, because now he understands the value of this building, maybe his father can't afford it now that he is bankrupt.

However, a surge of vigor and confidence immediately surged out of his simple eyes, and it was obvious that the sentence "I believe in you" gave Lin Nan inexplicable strength.

After a pause, Lin Nan said loudly to the wolf in the woods: "A gentleman's word, the horse is difficult to chase!"

The wolf smiled happily, he was not frivolous when he was young, and he was a teenager in vain.

Hearing all this, Ye Xinlan, who was sitting in the back row, did not hit the child on his birthday as usual, she also smiled and said, "Mom also believes in you!"

The pure light of hope in Lin Nan's eyes became more determined.

......

The car continued to drive on the country road, and saw the camera across the road not far in front of him, flashing and flashing, the wolf took it to heart and said to Lin Nan: "Son, do you know that there are speed limits on many highways?"

Lin Nan immediately replied: "Yes, for safety, it is easy to cause a car accident if the speed is too fast." ”

Timber Wolf continued: "Then do you know how the police uncle takes the speed?"

Lin Nan turned his little head, revealing a trace of doubt, and then looked around, and after a while, he saw the flashing camera, smiled and pointed to the camera that was getting closer and closer in front of him: "I know, it's the flashing camera, it keeps taking pictures, recording the position change of the car, and calculating the instantaneous speed of the car through the distance difference and time difference." ”

The wolf was very happy and made an approving voice: "You're right!"

Sure enough, Lin Nan's head is still as flexible as when he was a child, he is particularly sensitive to mathematics, strictly speaking, the "knowledge" just now should be in the first year of high school physics, but junior high school is also involved.

Learn mathematics, physics and chemistry well, and you will not be afraid to go all over the world.

This sentence is not unreasonable, knowledge comes from life, and full of life, young children are full of curiosity about life, if you can combine this curiosity with learning, then learning is not easy and enjoyable?

Learning is more than just cold formulas in books and bright red scores on test papers.

It is better to travel thousands of miles than to read 10,000 books, and Lin Wolf already has Lin Nan's "study plan" today in his mind.

Driving past the "camera knowledge point", Lin Wolf then said to Lin Nan: "Son, I have been driving this Santara for several years, and I am going to change to an Audi in a while." ”

Before Lin Wolf could ask a question this time, Lin Nan hurriedly said, "I know, it's the car with four circles lined up!"

Timberwolf smiled and continued, "Then do you know what makes Audi better than Santara?"

Lin Nan blurted out: "Handsome! Santara looks so ugly, look at how handsome the black Audi in the parking space is!"

Lin Wolf sneered, and Ye Xinlan, who was sitting in the back row, also laughed, but she didn't speak, and kept quietly watching Lin Wolf's "performance" today.

Timber Wolf chuckled and continued to ask, "In addition to being handsome, what else?"

Lin Nan thought for a while and said, "There is still a speed!"

Timber Wolf nodded, and then asked, "Is there anything else?"

Lin Nan shook his head: "No!"

Timber Wolf was about to say something more when he happened to drive in front of a red light and a black Mercedes stopped next to it. Seeing this, the wolf held back the words he had prepared.

Lin Nan also found the luxury Mercedes-Benz next to him, and a pair of big eyes were looking around through the window.

The two cars were in stark contrast at the traffic lights, but the old Santara didn't seem to feel ashamed of itself, perhaps because the owner who drove it didn't feel inferior.

The red light goes out and the green light comes on.

The black gallop rushed out in the lead, leaving Santara far behind.

At this time, Lin Nan, who had been observing, said loudly: "Dad! I know, and speed up, a good car can speed up quickly." You see that Mercedes rushed out all at once. ”

Lin Wolf was very happy and lived up to his expectations, Lin Nan said the answer he wanted.

Timber Wolf said slowly: "This is called acceleration, which is a physical quantity that describes the speed change of an object. ”

That serious look was like a gold medal lecturer, but a discordant voice broke the mood at the moment.

"Dad, I remember that you graduated from junior high school, how come you still know the knowledge of high school?" Lin Nan's voice full of doubts sounded.

Ye Xinlan in the back row also looked at her husband today with a curious expression, when did Lin Wolf understand so much?

Suddenly, the wolf was in a dark mood, and he couldn't say, "Actually, I came through time, son!" Because of your departure, I have become an education expert and have learned a lot of basic knowledge in all walks of life!

Years of experience made Timber Wolf quickly think of the answer, and said casually: "I graduated from junior high school, because my family had no money to study! But I have liked to study since I was a child, and I have also seen some high school knowledge, not to mention that I have been driving a car for more than ten years, so of course I have enough understanding of cars!"

As soon as the words fell, Lin Wolf continued to ask: "Nan Nan, then do you know why a good car is fast and fast?"

Lin Nan shook his head directly, this time he really didn't know, although he felt that it should have something to do with the engine, but it was not clear what it was.

Timber Wolf turned into a gold medal mentor again, and said slowly: "There are three major parts of a car: engine, gearbox, and chassis.

The engine is the most important component of a car, and it is also the most technical component of the three major parts of the car. The engine is the power source of the car, which can convert the chemical energy of the fuel into mechanical energy, so as to make the car "move".

At present, there are two main types of engines: naturally aspirated (L) and turbocharged (T). Naturally aspirated engines have been famous for a long time as they are responsive and reliable. The advantage of turbocharging is that it is powerful, accelerates quickly, and can burst out the maximum torque when the speed is very low, and it is more powerful than the naturally aspirated engine under the same displacement, and the disadvantage is that it is not as reliable and smooth as the naturally aspirated engine.

Transmissions are divided into manual transmissions and automatic transmissions. The manual transmission responds quickly and saves fuel, and the driving experience should be high when you are in gear, while the automatic transmission is worry-free and convenient, but the disadvantage is that the fuel consumption is high and the response is slightly slower.

The chassis consists of four major systems: transmission, driving, steering and braking. Many people compare the chassis to the skeleton of a car, which shows the importance of the chassis for a car.

The acceleration speed depends on the torque, and the top speed depends on the power. Cars with large displacements can speed up quickly! Cars with vortex superchargers can speed up quickly! Cars with light bodies can speed up quickly!

This is actually the same as the power knowledge you learned in junior high school physics, P=W/t=F*S/t=FV, and when you get to high school, you will learn acceleration a, a=F/m......"

......

Lin Nan on the side just stared at the wolf with a pair of big eyes, listening with relish, it turned out that the cars that he could see everywhere in his daily life had such a big knowledge, and it was closely related to the physics knowledge he had learned.

However, Lin Wolf did not continue to speak, if he really wanted to talk about the knowledge in the car, he may not be able to finish it until dark, but finally said: "But Nan Nan, do you know? As far as most of the cars we see in our daily life are actually foreign brands, one of the most important reasons is that there is still a big gap between the technical level of domestic engines and foreign developed countries, and these gaps need to be made up by you in the future, now you should know why you want to learn!"

Lin Nan nodded as if he didn't understand, although Lin Wolf knew that Lin Nan would definitely not embark on the path of physics or automobiles in the future, because he didn't have a lot of talent and interest in this area, but he still had to tell him the truth.

However, it may be different from the previous life, this life of the forest wolf will let Lin Nan have a broad knowledge since he was a child, and he does not know what Lin Nan will like in the future and which path he will take......

As time passed, the car finally reached the end of the line, a small mountain village on the edge of Qingshui Lake, where the timber wolf grew up.