"What is this data?" Lu Li and Tang Xing asked at the same time.

"This is the data of an infrared light intensity detector, which is specially used to measure the infrared index of the exterior walls of buildings around Xinhai City."

"So what does this have to do with the shooting?" Lu Li asked.

"Don't forget, this shooting was caused by an infrared laser." Zhuang Qing reminded.

The picture shows a simulated picture of the police body armor being hit by an infrared laser, and Lu Li immediately recalled the scene that day after watching it, which is exactly the same as this simulated picture.

"In other words, this data was deleted by the main messenger of the shooting?" Tang Xing was the first to speak.

"Bingo! You guessed it. Zhuang Qing said.

"That is, the laser launch location was fired from one of the buildings in Times Square? The main messenger deleted this data in order to prevent others from knowing exactly where it was launched. Lu Li said his understanding.

"I don't think it's for that reason." Zhuang Qing shook his head.

"Why?"

"The data on the infrared intensity of the exterior wall of this building is most likely deleted by the main messenger, but the police want to launch the laser from which position to shoot, in fact, it is not so much trouble, at that time, the police officer's airship and drone are nearby, and the police officer through his own detection radar to launch the trajectory of the gun is extremely simple." Zhuang Qing explained.

"Isn't that an extra move to take off your pants and fart?" Lu Li and Tang Xing were both a little confused.

Zhuang Qing looked at the two people who were puzzled, smiled and said, "Let's look at this ...... first"

Zhuang Qing closed her eyes and took a deep breath, and the eyeballs under her thin eyelids turned at a high frequency.

A holographic projection appeared around the three of them, and the projection was exactly the scene of Times Square.

"I collected all the videos of the shooting scene on the Internet, which were taken by onlookers with their mobile phones, taken by reporters who happened to be at the scene at the time, and videos released by the government. The footage was taken from different angles. And then I put it all together and composited it ......."

Figures appeared in the square, and there were several people standing in the middle, who were Lu Li and several police officers at the time of the shooting.

"It is synthesized to calculate the position movements of each of the main characters at the time of the shooting and the calculated firing position."

The firing point of the simulation calculation is the middle end of the headquarters building of the Mahayana company.

Now let's look at this problem from a different angle, assuming that the main messenger has a purpose in deleting this piece of data, then what is his purpose? Now that the police and we all know that the firing point is a location in the middle of the Mahayana headquarters building, what exactly is the main messenger trying to hide? ”

Lu Li and Tang Xing stood in the square and pondered.

Zhuang Qing was the first to say his inference: "In my opinion, the biggest question now is whether the laser was shot from the Mahayana headquarters building or by a drone.

"I think that the main messenger deleted this data precisely to interfere with people knowing this, because the accuracy of this infrared intensity detector has reached the millimeter level, and through three-point positioning, it can be easily distinguished whether this high-energy infrared light is emitted from the upper floor or from a drone in the air." Zhuang Qing finished speaking and looked at the two.

"After talking about it for a long time, we still don't know if this shooting was fired in the Mahayana headquarters building or by a drone." Tang Xing said helplessly.

"Don't worry, command, although we don't know now, I believe that we will be able to get key clues by pushing down step by step. Let me ask you, if you were to speculate, which of the two is more likely, shooting in the building or drone shooting? Zhuang Qing asked.

Tang Xing pondered for a moment and said: "If it is a drone, first of all, this drone needs to be equipped with a high-energy infrared laser emitter, but in a location like Times Square, coupled with the presence of police officers at the time, it is impossible for ordinary drones to enter the venue." Unless ......"

Tang Xing thought for a while and said: "Unless, this drone is 'dual-wave stealth', but as far as I know, there are no drones with this technology." ”

Tang pointed to the Mahayana building on the hologram: "If it is a building to shoot, it is much more convenient, as long as you open the window and use a sniper rifle to fire, as for the individual weapon that can fire high-energy infrared lasers, I have heard of it." So, I think it's more likely to shoot in the building. ”

"Don't forget, command, what is the façade of the Mahayana company on the side facing the square?" Zhuang Qing pointed to the building of the Mahayana Building and reminded.

Being a little bit by Zhuang Qing, Tang Xing's pupils dilated: "The side of the Mahayana Mansion facing the square is specially made in one piece, and there is no window to open at all. ”

Zhuang Qing added: "If you forcibly open an opening, then the whole display will have a problem again, and the screen will be black." It can be said that it affects the whole body. ”

In this way, it seems impossible to enumerate both possibilities.

"Is there a third possibility? But ......" Tang Xing frowned, clenched his right hand into a fist, and his thumb clicked on the joints of his index finger at high frequency. "What does it mean to move the whole body with a hair? Why does the whole building go black when you open a small opening. When the inference came to a dead end, Lu Li asked.

Tang Xing was suddenly a little impatient when he was interrupted by this low-intelligence question, and bit his lip and ignored it.

"Because of the special process on the surface of the Mahayana Mansion, the surface of the glass is a liquid whole, and the magnetic field on the back controls the movement of different light waves emitted by the glass to reflect different light waves. This magnetic field is a whole, and if you open a hole, this magnetic field is broken, so the reflection will fail and become a 'black screen effect'. Think of a group of colored lights in series, once there is a problem in one place, the other lights will also immediately fail. Zhuang Qing patiently explained.

"This is the display failure of the Mahayana Building last month, the reason is that it was irradiated by a madman with a stolen laser gun, although the laser gun only illuminated a point on the surface of the building, but the building as a whole was still 'black' on the spot." Zhuang Qing called up the news to provide evidence.

Lu Li looked at the news thoughtfully. After a while, he said, "I pondered...... Did this shooting happen like this? ”

The other two didn't understand what this kid with a junior high school education was saying. The two asked in unison, "How?" ”

"Didn't you just say that the display in this building is actually glass, and the display effect is achieved by reflecting light? The laser should also be considered light. Did it come from a distance, calculate the angle, and reflect it right on this police officer? Lu Li said seriously.

"You mean the glass of the building reflects this high-energy infrared ray?" Tang Xing was completely dumbfounded.

"yes? Why not? Lu Li asked with a serious face.

Tang Xing didn't know how to explain, the corners of his mouth squeezed out a smile stiffly, and sneered dryly.

Zhuang Qing explained again: "Infrared does belong to light, and buildings can indeed reflect infrared, but high-energy infrared is different. The building is like a tennis racket, which can reflect tennis balls of different sizes by adjusting the mesh holes, but if you let the tennis racket be used as a cannonball, it will be too much, and the laser beam that can penetrate the heavy armor of the police officer will already wear two pieces of the building's glass, let alone reflect. ”

Tang Xing glared and pursed his lips and gave Lu Li a "Now you understand, right?" Looks.

Lu Li asked unconvinced: "Why do you conclude that the glass of the Mahayana Mansion can't stop this?" ”

The two were a little helpless after hearing this. Zhuang Qing called up the information and said: "Military science and technology have always been the representatives of the highest technology of mankind, in terms of the laser protection scheme of the Ming military, there is no implementation of the technology of protection through the reflection of high-energy lasers as you said, the mainstream scheme is only the heat dissipation coating scheme, that is, the scheme variant of the space return capsule of the year, these schemes are passive protection." Not to mention the kind of glass that you not only have to defend against, but also reflect a beam of glass that can penetrate heavy armor. ”

After Zhuang Qing finished speaking, she rolled her eyes and stiffened. Without waiting for Lu Li to speak, he continued to add: "After my simulation calculations, assuming that the glass of Mahayana Company can reflect this beam of high-energy infrared laser, the energy of the incident laser is at least five times that of the reflected laser. That's five times the energy that no mobile platform can shoot. ”

"Reflection...... Reflection....... Lu Li lowered his head and pondered. Tang Xing looked at Lu Li with a helpless expression, feeling that this kid who called over today did his best to help.

"I remember that day, someone told me that the display pattern of this building is displayed by reflecting the sun's rays, which means that the brighter the sunlight, the brighter the display. I have a question, what to do with this mansion at night? Lu Li continued to ask.

"You're right, this building mainly relies on reflecting sunlight to display patterns, but it's not that the brighter the sunlight, the brighter it appears, there is a fill light opposite this building, just like a movie projector, and this building is a screen." After Zhuang Qing explained, the hologram showed the location of the light filler, which was on the top of a building directly opposite the Mahayana Building.

After Zhuang Qing finished saying this, Lu Li gave Tang Xing a look.

"You...... You wouldn't say that the high-energy laser was emitted by this light filler. Tang Xing noticed Lu Li's eyes and asked with his eyebrows wide open.

"Do you think that's possible?" Lu Li asked expectantly.

What caused Lu Li's illusion that a civilian building could emit and reflect military-grade high-energy lasers?

"What Xiao Lu said, it's not impossible?" Zhuang Qing unexpectedly stood up.

Tang Xing said with an expression of "I really believe in the evil of the two of you": "Okay, just go in this direction, how to prove the possibility of what you say?" ”

Zhuang Qing took a deep breath, rolled her eyes, and began to search.

"Found it!"

"Found what?" Lu Tang and the others asked in unison again.

"I saw a research paper on the Internet about a student at Xinhai University on the topic of statistics on the energy consumption of Mahayana buildings. Among them, they set up physical equipment to detect the solar and wind power generation of the Mahayana Building and the power consumption of the building, and one of them was to detect the power consumption of this light supplement, and their investigation period included the day of the shooting. Zhuang Qing said excitedly.

"What do you mean...... Maybe their own detector happened to have the fill light data at the time? Tang Xing asked.

Zhuang Qing was stunned for a while and said. "I've got all their survey data, and I'm really working on it."

"You hacked their server?" Lu Li asked curiously.

"No, I told them that I was also a student at Xinhai University, and I was on a similar topic recently, and they gave it to me." Zhuang Qing said with his eyes closed.

Lu Li thought that Zhuang Qing hacked into the other party's server like a hacker in the movie, but he didn't expect it to be asked for it directly, and he was a little discouraged.

"I didn't completely lie to them, I'm indeed a student at Xinhai University, but I'm just their senior sister." Zhuang Qing closed his eyes and continued.

"Found it! There is indeed an anomaly in the data. Zhuang Qing said violently.