Demon School

Fans are happy, coach Magath is even happier, he also signed a player who has never played in professional games under unclear pressure. Lu Qiujian did not appear on the list a few times before, plus Bayern's poor record, his pressure is even greater; but this big victory brought by Lu Qiujian can completely shut up those pungent media. ∷

"Lv, Oliver, go to the press conference with me!" Kahn is the captain of Bayern. Lv Qiujian is the best player in this game. It is normal for Magath to let them both participate in the press conference. .

"Yeah, okay!" Lu Qiujian nodded. He did not participate in commercial activities and did not accept interviews, which has caused a lot of trouble for Magath. The press conference will not delay much time. Go and go!

At this time, the most excited people at the press conference were the reporters from China. They were surrounded by German journalists and tried to dig some information from Lu Qiujian from their mouths; but the news they got was Lu Qiujian. Previously studying in the United States, returning to China to obtain a doctorate and later studying in Germany and other academic achievements, he also knew nothing about his football career.

"... This game Bielefeld caused us a lot of trouble, but this is Lu's first game; Bielefeld players are not familiar with his technical characteristics. As a result of this score, maybe we wo n’t be as relaxed as we are today in the next game ... "Magath spoke official language with some concern.

"... We have some chances in the first half. In the second half, Lu's debut completely disrupted our plan ..." The opposing coach couldn't help but praised Lu Qiujian.

The coaches of both parties concluded their summary, and it was time for free questioning; the news officer ’s voice just fell, and countless arms were raised. He glanced around and clicked a familiar reporter. "Please" Kicker "magazine Mark's question. "

A bearded German middle-aged stood up. He took the microphone and turned his eyes to Lu Qiujian. "I want to ask Lu a question. Bayern scored three threatening free kicks in the front of Bielefeld's penalty area in the second half, and your three free throws all resulted in scoring. Can you tell us why your free kick is so? Is it accurate? "

As soon as this question was raised, all the reporters raised their ears, and even Magath and Kahn turned their heads slightly, trying to figure out the secret of Lv Qiujian; especially Kahn, who suffered from this in the training competition The torture of the move will make it possible to make good coping strategies in advance next time.

"Well, the answer to this question is actually very simple!" Lu Qiujian looked around. Pick up the tactical board and pen that Magath dropped on the table, and write and draw on the tactical board. "I think of the court as a three-dimensional Cartesian coordinate system with the free throw point as the origin! "

Lu Qiujian first drew the origin in the center of the tactical board. "This way we can determine the coordinate value of the free throw point as (0,0,0). According to my observation of a point where the football can pass by next to the wall of 9.15 meters from the free throw point. The coordinate value is (-3,9.2, -11), the coordinate value of the football landing point on the right side of the goal is (-6.3,27.8, -23). ​​"

Ignored the confused eyes of the reporters and Magath, Kahn and others. Lv Qiujian draws a parabola to connect these three points. "We bring the coordinate values ​​of these three points into the standard formula of the parabola in the three-dimensional coordinate system, and we can get the specific equation of this parabola."

Lu Qiujian wrote the result of the calculation on the parabola that crossed the goal straight into the goal. "Now that we know the equation of this parabola. Then the next work will be easier, as long as we guarantee football You can easily score goals by moving according to the predetermined trajectory! Do you understand what I said? "

The speech ended for a long time, and many reporters who heard the dizziness shook their heads in unison. "Photo" reporter responded the fastest, and then asked the press officer, "How do you ensure that the football moves according to your calculated trajectory?"

"We all know that the standard weight of a football is between 420 and 425 grams. I measured the real weight of the football when placing it; then based on simple mechanics, I can calculate where the football needs to be How much force it exerts to make the football fly according to the predetermined trajectory. "Lv Qiujian wiped the parabola and drew a schematic diagram of the force analysis of the football on the tactical board.

Then write a lot of data next to the football, and then draw a schematic diagram of the force of his left foot next to the football, "According to the result of my calculation, I want to exert force in the lower left corner of the football; so I first accelerate and borrow inertia ...... "At this time, he wrote the acceleration formula next to him," My speed was **** meters / second, and my weight was 75 kilograms. From this we can get another data, combined with this data I By adjusting the kicking speed and strength of the left foot, you can ensure that the trajectory of the football flight is consistent with my pre-calculated results. "

The reporters burst into tears at the same time, press officer, we are here to attend the press conference, but we are not going to listen in the physics class of a university!

"But there seem to be some other factors that will affect the trajectory of the football flight?" There was a dull guy who didn't notice the strange appearance on the faces of the other reporters and asked with doubt.

Slot, which media reporter is this? Why are you so ignorant? The hatred of all the reporters was concentrated on him ~ www.wuxiaspot.com ~ But now that it was too late, Lu Qiujian once again wiped off the traces on the tactical board and began to write and paint.

"There are many factors that affect the flight path of football, the wind speed on the scene, the humidity of the air, etc.!" Lu Qiujian painted a blade of grass on the tactical board. "I don't know if you noticed it. I used the blade of grass before the free throw. The free falling motion measured the wind speed. Based on the weight of the grass blade, the time of landing, and the direction of the grass blade deviation when landing, the wind speed at the scene was **** / m / sec. Then I added this variable to the force of the ball From the analysis, we can draw a new piece of data. Based on this data, I adjusted my angle and intensity of playing ... "

The whole conference directly became the training of Lu Qiujian's mathematics and physics. A group of clever reporters on weekdays all closed their mouths, and pitifully opened their eyes to see Lu Qiujian's drawing on the tactical board. A pattern and a lot of formulas next to it.

It wasn't until the press conference ended that they recovered and suddenly began to freak out; by the way, how to write the news tonight! I didn't understand all the things he said just now! (To be continued.)

Ps: Thank you for the 588 reward for horses and sheep. Thank you to sjdsunyan, parliamentarians, Fei Lian messengers, lonely night, bjtzduang, moon night sincere incense, sun moon and moonlight.

Thank you for the monthly tickets of the starlight star, Kaka cat, zjfkka, Xianglinger, Piaofeng, etc. It seems that the monthly ticket is coming to a more standard!