Hello, Mr. Major General

This kind of experiment is really very boring and boring to do, most of which are done by instruments, but Lu Jin intends to show his ability to Gu Nianzhi, doing it by himself, doing it with gusto, and Gu Nianzhi also watching it with gusto.

When she heard the phone ringing and saw Xie Qingying's call, she almost had the urge to hang up.

But looking at the face of He Zhichu, after thinking about it, she still connected.

"Gu Nianzhi, did you disturb you and Mr. Peter for the Lantern Festival?" Xie Qingying asked first, her voice a little stiff.

Gu Nianzhi frowned, "Mr. Peter and I are nothing but ordinary friends. Why do you want to spend the Lantern Festival together?"

I really didn’t spend the Lantern Festival with Peter...

Xie Qingying felt uncomfortable, and countless speculations rolled in her mind. In the end, she suppressed her emotions and whispered: "He Shao is going to give you something today. Someone secretly took your photos."

Gu Nianzhi: "..."

"Candid camera? Who is so idle?" Gu Nianzhi was speechless, "Today is the fifteenth of the first lunar month!"

Not at home for the holidays but want to take pictures outside?

Is there a mistake!

"Yeah." Xie Qingying nodded faintly, "Who else? Wen Shouyi. She sent me the photo, and I was angry for a while, blacked her out, forgot to save the photo, and then she withdrew it. I have no evidence. You believe it. Okay, whether you believe it or not, I'll let you know anyway."

Gu Nianzhi twitched the corners of her mouth, thinking that Wen Shouyi was a human being, staring so closely, did she know she was testing the DNA of her and her parents?

Gu Nianzhi rolled her eyes and said, "Are you comfortable talking?"

"I'm in the car." Xie Qingying looked outside the car. It was late and she was almost home.

"Oh, let's send a text message." Gu Nianzhi said with a smile, "you can say more in detail."

"Are you inconvenient to talk?" Xie Qingying couldn't help but tentatively asked, "Am I still disturbing you?"

"No, I'm watching someone else do an experiment. It's interesting." Gu Nianzhi said with a smile, hung up the phone, and sent a text message to Xie Qingying instead.

Gu Nianzhi: [When did Wen Shouyi send you the photo?What is it like, can you describe it roughly?

When Xie Qingying heard that Gu Nianzhi was watching other people do experiments, she didn't believe it at all.

Where can I watch the experiment on the 15th of the first lunar month

But she didn't say much, just sent a screenshot of Wen Shouyi's withdrawn photo to Gu Nianzhi.

Gu Nianzhi looked at the time when Wen Shouyi withdrew the photos, and hurriedly replied: [It’s too late, I will teach you a way to show the photos that the other party has withdrawn.

Because the operation of undoing the photo is not because the other party actually deleted the photo from your phone in a timely manner, but replaced the previous photo information with an established message.

The photos sent by the other party are actually still in the cache of your phone, and most people don't know how to retrieve the photos from the cache.

When the phone clears the cache, the photos will really disappear.

It was only a few minutes after Gu Nianzhi watched Wen Shouyi's withdrawal of photos, and Xie Qingying's mobile phone cache must still contain Wen Shouyi's withdrawn photos.

Xie Qingying was particularly surprised: [Can the withdrawn news be restored?!

Gu Nianzhi smiled and nodded: [Yes.

Then sent a series of instructions to Xie Qingying and asked her to follow them.

Xie Qingying is an Apple phone. It is more difficult to adjust photos from the cache than on the Android system. Generally, it can only be done with a jailbroken version.

But with care, these are not problems.

When she was there, she learned a lot of practical hacker knowledge from Zhao Liangze.

Jailbreaking an Apple phone is just a routine operation for hackers.

Xie Qingying followed Gu Nianzhi's instructions, step by step in the mobile phone, as if opening the door to a new world.

When she recalled the two photos that Wen Shouyi had withdrawn from the phone cache, she had already admired Gu Nianzhi.

This little girl is really amazing.

Beauty and brain coexist, and the figure flies together. No wonder He Zhichu still feels about her...

Xie Qingying firmed up his desire to stay away from Gu Nianzhi.

Then replied: [I have something to do, just to remind you.

Happy Lantern Festival.

Gu Nianzhi also replied: [Happy Lantern Festival.

Xie Qingying closed the dialog and looked up and saw that the car had stopped at the door.

"Qingying, are you okay?" Xie Qingying's best friend got out of the driving position, opened the door for her, and helped her out of the car.

Xie Qingying's drunkenness was almost gone, she smiled and nodded to her girlfriend, "Thank you, go and accompany your boyfriend, I'll go back to sleep."

Her girlfriend sighed, "I'll help you in before you go."

Xie Qingying was helped into the house by her girlfriend, washed casually, and went to bed.

But she couldn't sleep, her spirit was in excitement.

After her girlfriend left, Xie Qingying took out her mobile phone and started calling He Zhichu.

But He Zhichu has been working and did not answer her call.

...

Gu Nianzhi held his cheeks and looked at the photos on the phone in a daze.

Lu Jin set up the instrument and let them start the full DNA sequence test of Wen Dayou and Liang Meili.

Turning to see Gu Nianzhi holding the phone in a daze.

"What's wrong? Who was calling just now?" When Lu Jin started working, he was very attentive and paid little attention to things around him.

Gu Nianzhi frowned and raised his head, showing the photo on the phone to a closer look, wondering: "Look, how did this sneak shot? I think the quality of the photo is not bad, but I can't tell where the person who took the shot is."

If you can find the location of this person, and then check the nearby surveillance, you should be able to follow the vine and find evidence of Wen Shouyi's crime.

But she looked left and right, and couldn't determine the location of the photographer.

Lu Jin took a look and said, "From the perspective of the photo, it was taken from the top side. This angle is a bit strange and it doesn't look like a normal digital camera."

He pointed to his computer and said to Gu Nianzhi, "Send me the photo and I will analyze it for you."

"Okay!" Gu Nianzhi cheered up and quickly sent two photos to Lu Jin.

Lu Jin opened his desktop computer, which was comparable to a central server, and opened the photo with mathematical analysis software.

Soon, this flat photo became three-dimensional on a nearby computer screen.

People and things, as well as the surrounding buildings, are clearly standing on the screen.

Lu Jin pointed to the picture on the computer and said: "With this model, you can calculate the specific orientation of the shooting lens from the angle of the person's display."

"Can this be calculated too?!" Gu Nianzhi was extremely surprised, and the black pupils looked at the road as they could speak.

Lu Jin smiled triumphantly, and clicked the mouse twice on the computer screen, "Of course it can be calculated."

"Do you know experts in gun ballistics analysis? They can know what type of bullet it is and what type of gun it shoots from with a bullet hole."

"A better ballistics expert can even pinpoint which gun the bullet was shot from."

"We also use this principle to estimate the location of the person taking the photo."

"This person used an optical lens to take photos, and the photos were also washed out with film, which increased the difficulty of tracking."

"If he is using a digital camera, this photo is a digital picture, and I can lock his position in less than a second."

Lu Jin shook his head regretfully, "But now, I have to model his photos, and then calculate from the angle of light projection, to find the end of the light, which is where the person was when the photo was taken."

"Don't you have surveillance in the community? Can you call it out and have a look?" Gu Nianzhi said quickly, "maybe he is under surveillance."

Lu Jin shook his head, "You can watch the surveillance, but don't hope too much. I look at the angle and the texture of the photo, and I feel that he used a telephoto lens to shoot here from a tall building in the distance."

Therefore, it is impossible for the surveillance around the community wall to see this person.

The optical lens also avoids being scanned by electromagnetic waves, so this person cannot be found by conventional methods.

Only by modeling and calculus with complex three-dimensional analytic geometry and linear algebra like Lu Jin can he accurately find his position.

Gu Nianzhi admiredly watched Lu Jin programming on the computer.

After half an hour, the near program finally finished.

He pointed the mouse at the window of a certain high-rise building on the 3D modeling, "It's here. That person used a telephoto lens to shoot you secretly."

After that, Lu Jin wrote down the floor and house number of the person, "Let him arrest someone when you find him."

Gu Nianzhi nodded happily and immediately called He Zhichu.

At this time, He Zhichu's work has just come to an end.

In order not to be disturbed, he just turned the phone to silent.

As soon as I picked it up, I found that there were many missed calls in front of me, and the last missed call actually came from Gu Nianzhi.

He Zhichu was startled slightly, and immediately called Gu Nianzhi back.

Gu Nianzhi was about to call again and found that He Zhichu had already called, and said hurriedly, "He Shao, are you still working? Did I bother you?"

He Zhichu smiled, "I just finished busy, what's the matter? Anything?"

"Well, something is going on." Gu Nianzhi said, and sent He Zhichu an address, a coordinate, and two photos from Xie Qingying.

This is today's second update: Chapter 1729 "Believe It or Not".

We will continue three shifts today, and the monthly pass for May will be increased.

Please vote for all recommended votes~~~

The third one at eight in the evening.

Meme da, big brothers and little angels~~~

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