For Chen Chen, who is used to seeing international metropolises, Windhoek is like a remote country. There are only two or three-storey small buildings everywhere, and only a few hundred meters away there are a few high-rise buildings that can meet international standards.
That reflection came from the top of the tallest commercial building.
At this time, the reflection kept flashing, like a cold and chilling star in the daytime.
Chen Chen still remembers a metaphor given by his teacher when he was in junior high school: If you stand by the lake and look down at the water under your feet, you will find that the water is transparent and the reflection of the sun above your head is not strong.
But if you look at the lake from a distance, you will find that the lake is not transparent, and the reflection will be very strong, so strong that it is difficult to open your eyes.
This is the Fresnel effect.
The so-called Fresnel effect is the relationship between reflection and line of sight angle. In addition to metals, other materials in the world have Fresnel effects to varying degrees.
Chen Chen relied on this effect, coupled with his specially designed location and angle, to make the sniper who assassinated him unable to hide.
[The other party is 15° above my line of sight. If we regard our two positions as two points of a right triangle, we can conclude that the interior angles of the triangle are 15°, 75° and 90° respectively.]
[Suppose the sides corresponding to the three angles are a, b, and c respectively. It is known that the distance between the lecture platform and the commercial building is 560m, that is, b=560, then a=560tan15°=560(2-√3)=150. According to Pythagorean The theorem shows that c=√(a^2+b^2), that is, c=580.]
[In other words, the straight-line distance between me and the other party is 580 meters.]
[There is a parapet on the top floor of that building, which means that the opponent placed the sniper rifle on the parapet. Therefore, at the moment of shooting, the sniper scope will produce a huge recoil and cause the reflection to disappear. Therefore, when the reflection disappears, That's the moment the opponent's bullet comes out of the gun.]
[At this time, the wind direction is northwest, which is full speed wind for the sniper. The wind force is level 3, and the wind speed is about 4.5 meters per second. The large-caliber sniper bullet shoots at the target 580 meters away, which is converted into a minute angle equation: range 100x wind speed (km/h ) constant 14, the minute angle is 6.]
[At the same time, a qualified sniper will aim at my chest instead of my head, because the chest is larger and the probability of displacement is smaller. After all, with the power of a sniper rifle, the effect of hitting the chest and hitting the head are exactly the same. Yes, according to the minute angle compensation number, the opponent is aiming at my right chest at this time. After the bullet is fired and deflected by the wind, it will hit my left chest, which is where my heart is. Moving 20cm to the right is enough to avoid the bullet]
[But to be on the safe side, I’d better move 25cm to the right.]
[It is known that the bullet speed of a sniper rifle is 800 to 900 m seconds, which means that at the moment when the reflection disappears, I have 0.644 to 0.725 seconds of dodge time. However, the delay effect of the recoil needs to be added, and the time is shortened to 0.5 seconds. .]
[But enough is enough...]
All this calculation process seems long, but in fact, only four seconds have passed since Chen Chen discovered the reflection.
Four seconds later, Chen Chen sent the other party's location information by tapping on his phone.
"Everyone, the future can be said to be dominated by nuclear power plants. As a kind of clean energy, the advantages of nuclear power plants are several times greater than that of thermal power plants. It will not produce any environmental pollution. At the same time, because our company uses the world's most advanced The probability of accidents with third-generation semi-nuclear power plant technology is equivalent to... "
The moment Chen Chen passionately said the words "equivalent to", in his peripheral vision, the white reflection suddenly disappeared!
[It's now!]
Chen Chen smiled and spread his hands and took half a step back. However, when he stepped back, his foot seemed to stumble and his body was slightly unbalanced, staggering 25 centimeters to the right.
Whoosh!
Almost at the same time, a piercing scream passed through Chen Chen's left side. The violent air flow directly tore his clothes and pulled a blood groove on Chen Chen's left arm!
Until then, everyone in the audience and on the stage burst into exclamations. Several strong men in black suddenly rushed to the podium and blocked Chen Chen behind him to protect him.
…
"No problem, just a minor scratch."
Back at the embassy, a doctor from Central China used iodophor and cotton swabs to treat Chen Chen's wounds with an expressionless expression.
Around Chen Chen, most of the members of the expedition team gathered, including Qian Wenhuan, Zhou Jing, Wang Liang, Anthony who was in charge of business negotiations, Jennifer, the legal advisor, and all their subordinates.
"Will it cause inflammation and infection?"
Qian Wenhuan looked frightened and said to the doctor, "Doctor, is there anything I need to pay attention to after being shot, such as not eating spicy or greasy food?"
"Just drink more hot water." The doctor rolled his eyes at Qian Wenhuan, packed his things and left the room with the medical kit.
"I really didn't expect that the other party would be so heartbroken and crazy."
Wang Liang on the side also frowned, "We haven't offended anyone in Namibia. How come it was a tire blowout and an assassination?"
"No need to say more, get ready to pack your things."
Chen Chen rubbed his arms expressionlessly, picked up his coat and walked outside, "Wen Huan, book the nearest plane ticket."
"...Understood!" Qian Wenhuan opened his mouth as if he wanted to say something, but finally agreed.
"Where are we going?" Wang Liang asked doubtfully.
"Of course I'm leaving Namibia." Zhou Jing rolled her eyes at her colleague and walked out of the room.
"Wait, Mr. Chen Chen!"
However, before a few people could walk out of the embassy, a group of people from the Investment Department immediately came to greet them. Not only Lidya, but also Hikuyele was among them. In addition, the leader was a white-haired man. old man.
"Mr. Chen Chen, please wait a moment!"
Lidya said in a panic, "This is our fault. We didn't expect that the other party would be so crazy and crazy. You..."
"What else is there to say?" Chen Chen walked past several people, "That's it."
"Mr. Chen Chen, I'd rather listen to what Wo says..."
Xikuyele also quickly spoke to persuade him to stay, "There is a saying in Chongzhou: Friends come willingly, even if they are far away... Oh no, not according to the moon, I would rather be Wo's guest, Wo's..."
Chen Chen still didn't stop.
No matter how these people tried to persuade them to stay, Chen Chen was already walking out the door.
"Please wait a moment, Mr. Chen Chen."
But at this moment, the leader of the old man suddenly spoke.
"Mr. Chen Chen, this is Mr. Bajfi Zurama, our Minister of Investment and Minerals and Energy!" Lydia on the side suddenly reminded.
Chen Chen stopped and said, "Minister Zurama, please forgive me for being unreasonable. Is there anything else you want to say?"
"I only want to say one thing."
The old man looked at Chen Chen intently and said in a loud voice, "Under other conditions remaining unchanged, our Namibian government is willing to make up for your loss today with the policy of tax exemption for three years and tax reduction for five years. Is this condition enough?"
Chen Chen turned around completely, frowned and said, "This will not affect your country's original benefits. If so, please forgive me for not accompanying you."
"No, I guarantee it with my position as minister." The old man nodded.
Hearing this, a smile finally appeared on Chen Chen's lips. He stretched out his hand and shook hands with the old man in front of him.
"Good cooperation, Minister Zurama!"