The fans are happy, coach Magath is even happier, and he has taken on the unclear pressure of signing a player who has never played in the professional game, and the pressure on Luciujian not to appear in the squad in the first few times, coupled with Bayern's poor record, but the big win brought by Luciujian can completely silence the picky media.

"Lui, Oliver, come with me to the press conference!" Kahn is the captain of Bayern, Lu Qiujian is the best player in the game, and Magath has them in the press conference.

"Well, okay!" Lu Qiujian nodded, his non-participation in business activities and non-acceptance of exclusive interviews have added a lot of trouble to Magat, and the press conference will not delay much time, so go if you can!

At this time, the most excited reporters at the press conference were those Chinese reporters, who were surrounded by German journalists, trying to dig out some information about Lu Qiujian from their mouths, but the news they got was that Lu Qiujian had studied in the United States before, returned to China to obtain a doctorate and then studied in Germany and other academic achievements, and also knew nothing about his football career.

"Bielefeld caused us a lot of problems in this game, but it was Rue's first game, Bielefeld's players were not familiar with his technical characteristics to cause this scoreline, maybe the next game will not be as easy as today," Magath said in the official language.

"In the first half, we still had some chances, and in the second half, Lu's appearance completely disrupted our plan," the opposing coach's coach couldn't help but praise Lu Qiujian.

As soon as the press officer's words fell, countless arms were raised, and he glanced around and nodded to a familiar reporter, "Mark from Kicker magazine, for a question." ”

A bearded middle-aged German man stood up, took the microphone and set his eyes on Lu Qiujian. "I want to ask Ru a question, in the second half Bayern got a total of three dangerous free-kick opportunities on the edge of the Bielefeld penalty area, and all three of your free throws resulted in a score, can you tell us why your free kick is so accurate?"

As soon as this question was raised, all the reporters pricked up their ears, and even Magath and Kahn tilted their heads slightly, trying to figure out the secret of Lu Qiujian;

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

Lu Qiujian first drew the origin point in the center of the tactical board, "In this way, we can determine that the coordinate value of the free throw point is (0,0,0), according to my observation, the coordinate value of a point next to the human wall 9.15 meters away from the free throw point that can allow the football to pass is (-3,9.2,-11), and the coordinate value of the football landing point on the right side of the goal is (-6.3,27.8,-23)." ”

Ignoring the confused eyes of the reporters and Magat, Kahn and others. Lu Qiujian drew a parabola to connect these three points, "We bring the coordinate values of these three points into the standard formula of the parabola of the three-dimensional coordinate system, and we can get the specific equation of this parabola." ”

Lu Qiujian brushed and wrote the results of the calculation next to the parabola that crossed the goal from the side of the human wall, "Now that we know the equation of this parabola. Then it's even easier, as long as you make sure that the ball moves according to the predetermined trajectory, you can easily score goals!

After the end of the speech for a long time, many reporters who were dizzy from hearing it shook their heads in unison. The Bild reporter was the quickest to respond, and without waiting for the press officer to speak, he asked, "How do you make sure that the ball moves according to the trajectory you calculated?"

"We all know that the standard weight of a football is between 420-425 grams. I measured the true weight of the soccer ball when I placed it, and then, using simple mechanical principles, I could calculate how much force needed to be applied to it at that part of the soccer ball in order for it to follow its intended trajectory. Lu Qiujian erased the parabola and drew a schematic diagram of the force analysis of the football on the tactical board.

Then he wrote a lot of data next to the football, and then drew a schematic diagram of the force of his left foot next to the football, "According to the results of my calculation, I need to exert force in the lower left corner of the football, so I accelerate first, borrowing inertia" At this time, he wrote the acceleration formula next to it, "My speed at that time was XX meters/ seconds, and my weight is 75 kilograms, so we can get another data, combined with which I can adjust the speed and power of the kick with my left foot, so that the trajectory of the ball is consistent with my pre-calculated results. ”

All the reporters burst into tears at the same time, press officer, we are here to attend a press conference, not to attend a physics class at a university!

"But there seem to be other factors that affect the trajectory of the soccer ball, right?" asked a sluggish guy who didn't notice the strange looks on the faces of the other reporters.

, which media reporter is this? Why are you so ignorant? All the reporters' hateful eyes were focused on him, but now it was too late, Lu Qiujian once again wiped the traces on the tactical board and began to write and draw.

"There are many factors that affect the flight trajectory of football, such as the wind speed on the scene, the humidity of the air, etc.," Lu Qiujian drew a blade of grass on the tactical board, "I don't know if you have noticed, I used the blade of grass free fall movement to calculate the wind speed before the free throw, and I calculated the wind speed at the scene at that time according to the weight of the blade of grass, the time of landing and the direction of the deviation of the blade of grass when landing. seconds, and then add this variable to the force analysis of the ball, and we can come up with a new data, according to which I adjust the angle and strength of my kick."

The whole press conference directly became Lu Qiujian's math and physics class training, and a group of reporters who were usually sharp and sharp-toothed reporters closed their mouths, and looked at the various patterns drawn by Lu Qiujian on the tactical board and the large number of formulas next to them with pitiful eyes.

It wasn't until the end of the press conference that they recovered and started to go crazy, "Damn, how do you write tonight's news! I didn't understand all the stuff he just said!" )

PS: Thank you for the 588 reward of feeding the sheep by Wuma, thank you to sjdsunyan, plane councilor, Fei Lian messenger, lonely night, bjtzduang, moonlit night Chengxiang, sun and moon with the same light for the reward.

Thanks to the monthly passes of Extreme Shining Starlight, Kaka Cat, zjfkka, Xiang Ling'er, Piao Miao Feng and others, it seems that the monthly pass is about to be added to a more standard!