Song Jinning's thinking was completely in a scientific state, and she pointed to a web page opened on the computer monitor: "I just checked, and the extraction technology of graphene has not broken through until now, so it is impossible for this kind of mobile phone battery to be mass-produced." Pen, fun, pavilion www. biquge。 info”

Gu Nianyi heard that it would take several years of hand-polishing to get a little bit of graphene material, and immediately stopped, "Forget it, it's so troublesome." ”

"Hmm. Song Jinning nodded, "At that time, it was also a coincidence, when Huo Guanyuan went on a mission, he got a piece of graphite ore with a special structure, and it was relatively easy to separate the single-layer graphene from it. He gave it as a gift to my father, who gave it to me. In my free time, I use hand sanding to extract high-quality graphene monolayer wafers. ”

Gu Nianzhi listened to the clouds, and the mosquito coils in his eyes became even more serious.

She maintained a smiling expression and finally listened to Song Jinning's words, and finally came to two conclusions.

First, graphite ore with a special structure was obtained by Huo Guanyuan.

Second, Song Jinning gave Huo Guanyuan a mobile phone battery made of materials polished from the ore found by Huo Guanyuan, and gave it to Huo Guanyuan.

It can be regarded as the return of things to their original owners.

So if someone is interested in that phone, it's actually interested in the battery inside, right?

Gu Nianzhi sat next to Song Jinning, looking very interested in the graphene molecular formula that Song Jinning showed her, but in fact, his mind was already out of the world.

There has been no major breakthrough in graphene extraction technology in the past decade, indicating that the person who stole the mobile phone could not replicate Song Jinning's success.

It also shows that the person may not know that the key to Song Jinning's success lies in the graphite ore with a special structure.

"Aunt Song, do you think that just this mobile phone battery will make it possible for people to kill people?" Gu Nianzhi tilted his head and looked at the full screen of mathematical formulas and molecular formulas on Song Jinning's computer screen like reading a book from heaven.

Song Jinning thought for a while, "If there is really a breakthrough in graphene stripping technology, capital will do anything for profit." However, you have to keep in mind that there is not the slightest breakthrough in this technology, so I don't think there is a need to kill. ”

“…… But others don't know......" Gu Nianzhi began to figure out the murderer's psychological state, "Maybe she thought you had made a major breakthrough, and finally took a risk and stole the mobile phone, only to find nothing." ”

Song Jinning smiled and shook his head, "If the person you are talking about is Bai Jinyi, I don't think she will do it." She is also an expert, and when I was making batteries, she also knew that if she wanted to steal the technology, she would have stolen it a long time ago. ”

I won't wait until six years after their accident to steal, and I will kill people and steal goods.

"Ah, she knows you make this battery, that is, she knows you use special graphite ore?"

"Hmm. ”

Gu Nianzhi's head tilted, leaning on Song Jinning's shoulder and speechless.

Well, the road doesn't seem to work.

Could it be that the murderer is really not Bai Jinyi?

Or, the murderer is indeed Bai Jinyi, but she took Huo Guanyuan's private mobile phone for another purpose?

Gu Nianzhi's fingers tapped on Song Jinning's computer desk again and again, what was the reason for Bai Jinyi to take risks and kill people six years later?

……

Coming out of Song Jinning's room, Gu Nianzhi did not go back to his room, but took the computer to Huo Shaoheng's office again.

It's dark, but the lights are still bright.

The staff in this office building are all in three shifts, 24 hours a day, 365 days a year.

Huo Shaoheng: They often don't sleep for days and nights, and it's even more common.

"Nianzhi is here again, are you here to beg for a beating?" Zhao Liangze rolled up his sleeves and walked over with a "cruel smile".

Gu Nianzhi made a "scared" look, slipped to Huo Shaoheng's office at once, locked the door, and waved his fist at Zhao Liangze outside triumphantly.

Zhao Liangze gestured twice at the door of Huo Shaoheng's office, and then gave up.

It was meant to amuse Gu Nian.

Gu Nianzhi turned around and saw Huo Shaoheng sitting behind his desk, the bright ceiling light pouring down, casting a clear and extinguishing shadow on his face, lining his facial features as handsome and profound as a statue.

Huo Shaoheng stared at the computer screen, typing on the keyboard quickly with both hands, and wearing a pair of shielded headphones on his head, as if he was talking to someone.

"Coming?" Huo Shaoheng didn't raise his head to greet her, "Sit." ”

Gu Nianzhi sat in the ring-shaped sofa area in the middle of Huo Shaoheng's office.

She placed her laptop on the coffee table and winked at the transparent walls of her office.

But people from the outside can't see inside at all, just like the wall on the other side of the interrogation room, which is one-way.

Gu Nianzhi found out outside, so after coming in, he recklessly grimaced at the one-way transparent wall.

Huo Shaoheng finally ended the call, closed the computer program, and looked up to see Gu Nianzhi holding a pair of jade-white hands, using the light projected from the other side of the room, making the shape of various small animals, projecting them on the opposite wall.

The ducklings that can run, the proud giraffes, and the barking puppies are very self-satisfied.

Huo Shaoheng got up from behind the desk, came to sit down beside her, and asked, "Have you talked to my mother?"

Gu Nianzhi nodded, withdrew his hand and rubbed it, and opened the graphene page to Huo Shaoheng to see, "Learn about that amazing battery." ”

Huo Shaoheng quickly finished reading the webpage, shook his head and said, "It shouldn't be for the battery." ”

"But what did the murderer want to do with the mobile phone?" Gu Nianzhi was puzzled, "If the mobile phone was lost when Luo Xinxue died, it would have been six years since Huo Guanyuan and Aunt Song had an accident." ”

"Well, there is another possibility, maybe the phone was lost long before Luo Xinxue died, but we only found out now. Huo Shaoheng pointed out another possibility, "So don't drill the horns." We don't need to know what the killer was going to do with his phone. We just need to prove that the murderer stole the phone from Luo Xinxue. ”

Gu Nianzhi immediately understood, "I know. It's me thinking too much. ”

Focusing on where the phone is, it's much easier to find the direction.

……

The next day, the mobile company sent them all the records of Huo Guanyuan's private mobile phone number.

Under normal circumstances, mobile companies will not give you a record of communication for that long time, because it involves too much time and effort.

But with a court summons and pressure from the military department, they had to do it.

The mobile company gave them a record of Huo Guanyuan's personal mobile phone, which he had been using since more than 20 years ago and has been using it until now.

It's a pity that this phone is used too often.

Gu Nianzhi found that this mobile phone number had followed Huo Guanyuan for four or five years, but the mobile phone call record was only ten pages, and there were some innocuous text messages.

All records came to an abrupt end sixteen years ago.

That was the day of the accident in the laboratory.

Since that day, the phone has not waited for its owner to appear.

It seems that after the military department handed over Huo Guanyuan's relics to his wife Luo Xinxue, Luo Xinxue did not use them.

What is the charm of a mobile phone that has been silent for six years that makes that person take risks and kill people to get out of the goods?

Gu Nianzhi didn't think about tea and dinner, couldn't sleep at night, and didn't solve this problem.

Later, Zhao Liangze couldn't see it, so he pulled her out of Huo Shaoheng's office and stuffed her into the computer chair next to his desk, "You can run the program for me, there is still one day before the trial, if it has not been discovered, it is likely that the opposing lawyer has found Huo Jialan's flaws, and Bai Jinyi will be exonerated from the crime." ”

Gu Nianzhi sneered: "She wants to get rid of Luo Xinxue's case? Have you asked me?!--Not to mention the case of Aunt Song!"

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This is the first update. A reminder of commuter passes and recommended tickets!

The second watch is still 1 p.m.

Yesterday I was going to update at two o'clock.,It turned out to be more than one o'clock in the middle of the night when I uploaded it.,I pressed "release immediately" as "scheduled release" in a daze......

o(n_n)o。

(To be continued.) )