Thanks for the reward of "Rain Leaf Shower"!

－－－－－－－

On Arnhem's return train to Amsterdam, the Ajax youth players laughed unscrupulously and were thrilled by a massacre, making fun of Vitesse's last scumbag.

Qin Xiong sat by the window with his cheeks propped up, looking at the scene of the rapid regression outside the train, without much excitement.

His ambition is incomprehensible to outsiders, and many people may think that at the age of 18, he has walked up step by step in the youth team, which is a normal development trajectory.

However, he just wants to climb to the sky in one step!

In particular, it doesn't feel challenging at all in the youth team.

Perhaps, it may be a little bit more challenging to move him to Vitesse youth team against Ajax youth team.

In this game, his teammates on the field have already recognized him, Wilthonghen sits next to him, Buhari and Babbel sit opposite him, and the three of them will take the initiative to chat with Qin Xiong from time to time, talking about interesting things in the game, such as the opponent's wolf goodbye at a moment, and the dazed or painful expression after losing the ball again.

As a winner, it may not be ethical to use the loser as a talking point for fun, but it is true in every corner of the world.

It can be said that there are no losers, how can there be winners?

The winner is to set off his success with the pain of the loser.

Qin Xiong is not interested in talking about this, and his teammates don't mind, just when Qin Xiong is an introvert, on and off the field, Qin Xiong is two diametrically opposed people, on the field, he is extremely active, everywhere, off the field, he will stay quietly in the corner, if he does not take the initiative to disturb, it seems that he does not exist.

Most of his teammates accepted him and recognized him from the bottom of their hearts, after all, everyone gathered at Ajax with football as a bridge, and football strength is the foundation of this collective existence.

But there are also people who are dissatisfied and even more hostile to Qin Xiong, Mopps and Yirmas sat on the cold bench for 90 minutes, witnessing Qin Xiong's appearance as the ruler on the field, Qin Xiong's every goal is like a loud bang hitting their hearts, making their sense of crisis increase dramatically!

Back in Amsterdam, Qin Xiong said goodbye to his teammates and returned to his apartment on Wardle Street alone.

In front of the apartment, Freddy sat outside De Coize's restaurant and waited for Qin Xiong, and when Qin Xiong returned, he immediately pulled out the chair next to him, beckoned to the waiter in the restaurant that it was time to serve dinner, and then he asked Qin Xiong how his game was today.

Qin Xiong lightly told Freddy the result.

"Hahaha, good, did Blinder praise you? Did you say that you should be promoted to the upper echelon? ”

Qin Xiong shook his head, waited for the waiter to bring the dinner, and ate quietly.

After dinner, Qin Xiong returned to the apartment, rested for a while, and began to study on his own in the evening

The next day, Qin Xiong went to train as usual, because there was a game yesterday, today's training task is not heavy, mainly to recover and relax, and the training ends early in the afternoon, because the reserve team has to play a game, and a little later, the first team will also usher in the Eredivisie at home, and the club's more attention is naturally placed on the first team.

Colours have left, some to watch the development squad and the financially better off to watch the first team at Ajax's home stadium, dreaming of one day playing for the team at the spectacular Amsterdam Arena.

Qin Xiong stayed alone at the training ground, communicated with the stadium administrator, asked for a bag of footballs, walked to the position of thirty meters in front of the goal, placed more than 20 footballs in a fan-shaped position, and then carried out free kick training at different angles towards the goal.

Watch, run, shoot, and repeat.

Every time Qin Xiong shoots, he pursues tricky angles, and the football will definitely kick out an obvious arc.

Perhaps it is the influence of his own thinking, in addition to short- and medium-distance shots, Qin Xiong's long-distance free kicks and long-range shots are mainly curved balls.

He doesn't like the fact that the ball runs in a straight line, and loves the unpredictable parabolic trajectory of the ball across the sky.

Therefore, when he practiced free kicks and long-range shots since he was a child, he would create a huge friction force when touching the football with the instep of his inner foot, causing the football to spin rapidly after taking off, forming a clear arc.

As he gets older and his strength rises, when he shoots from a distance and kicks a long-distance free kick, the body will be significantly tilted at the moment when he supports his body, in order to ensure the power and balance of the body, although it is not like Beckham when he kicks out the Beckham arc, the body tilt is exaggerated as if he is about to fall, but Qin Xiong is also improving the guarantee of ball speed on the basis of pursuing the arc.

Recently, something happened that confused him.

If he uses all his strength to shoot the curveball, the first half of the ball is normal during flight, winding around the outer arc and then spinning inward, but the second half is problematic.

The flight trajectory of the soccer ball sometimes does not end with the completion of the arc, but will appear irregular, truly unpredictable, and erratic.

This made Qin Xiong feel that football was not controlled by him.

Bang!

Qin Xiong shot another free kick, and then witnessed the flight trajectory of the football, after the initial arc rotation, when it reached the apex and fell, although the arc trajectory of the football still existed, it already had a slight tendency to fly straight!

An eerie arc is formed, consisting of a large arc in the front half and a small arc in the second half.

Bang!

The soccer ball hits the goal crossbar and bounces off.

Qin Xiong lowered his head and pondered deeply, thinking about the reason for the emergence of this phenomenon, this was not a special case, it was not an accident, but a situation with a high probability when he shot with all his might.

He tried one more kick to lighten the force, and then saw the ball complete its trajectory in the wide arc he was familiar with, without that irregular variation, and steadyly around the perimeter before crashing into the goal.

He crossed his back again in contemplation.

Obviously, he found part of the reason for the uncontrolled phenomenon, first of all, related to his ability to play football.

"What are you bothering about?"

Someone suddenly spoke behind him.

Qin Xiong turned his head to look and saw the famous Van Gaal.

Qin Xiong greeted the other party politely: "Hello, sir." ”

Van Gaal asked again: "What are you bothering about?" ”

Qin Xiong told the other party of his confusion, and used guò three consecutive free kicks to prove his story, although one ball did not show the irregular trajectory, but the other two balls showed an irregular trajectory when flying down.

Although Van Gaal's face was as usual, he admired Qin Xiong more in his heart.

The first is that the opponent himself is training here, which is a professional attitude, and there is no manager who does not like such players.

Secondly, he watched Qin Xiong kick almost 20 free kicks, and with Qin Xiong's free kick level, his eyes lit up.

As for Qin Xiong's confusion, he can really answer it.

He walked over and picked up a soccer ball, and said: "The scientific knowledge involved in the flight of a soccer ball is mainly fluid lì, simply put, the flight trajectory of a soccer ball is not only controlled by you, including the air resistance in the front, the air suction behind the ball, the friction of the surrounding air on the soccer ball, and the rotational force generated by the air vortex on the soccer ball, etc., first of all, you have to understand that the soccer ball is kicked out, that is, the moment after your foot kicks the ball, the speed of the soccer is the fastest." Within a certain speed, the flight trajectory of the football is familiar to us, such as curve ball, straight ball, the football will not produce too much, or even if there is a trajectory change, but we will ignore the change of the subtle deviation with the naked eye, but when the ball speed reaches fast enough, or breaks through a critical point, the trajectory of the football will be affected by various air resistance, friction, rotational force, and suction, and the deviation will produce a qualitative change, so that our naked eye can clearly observe, so congratulations, Your free-kick level has crossed the threshold of the elevator ball, and if you want to kick such a free kick with an unpredictable trajectory when falling more often in the future, my advice is to reduce the pursuit of arcs and focus more on power bursts and foot control, and keep the ball as static as possible. ”

Qin Xiong frowned slightly, he didn't like the football to remain stationary when flying, that kind of trajectory was only a straight line, lacking variety, or a beautiful sense of line.

But he decided to listen to Van Gaal's advice and try it.

Run-up, support your body, and make sure you are in a non-spin position when kicking the ball.

Bang!

The soccer ball burst out like a cannonball.

The ball is so fast that it goes by in the blink of an eye!

Qin Xiong and Van Gaal watched the trajectory of the football flight together, and the football in the upward flight suddenly produced a fluttering trajectory when it fell, and if it was observed at a slow speed of 10 times, it produced an irregular trajectory like a snake in a short distance in front of the goal!

Qin Xiong opened his mouth slightly, feeling a little surprised.

Perhaps, when he was a child, he didn't like straight lines because he didn't have enough strength, no matter how much he played, how much force he used, the football was just a roughly consistent straight line.

But now, his strength is enough for the ball to act on the fluid during flight to produce an irregular trajectory!

Van Gaal said with a smile: "It is precisely because of the stationary nature of the ball that the ball is only affected by the streamlined surface air pressure difference and gravity during its movement, and is not affected by the air pressure generated by the spin of the sphere, so that the erratic line can be generated, young man, you are great." (A pie-in-the-sky event, cool phones are waiting for you!) Follow the ~ point / Chinese network public account (WeChat add friends - add public account - enter qdread can be), participate now! Everyone has a prize, now pay attention to the qdread WeChat public account! ）