"What are you doing, is there any fuss about?" Zhang Yi didn't expect Ning Que to react so much, so he quickly squatted down, enlarged the materials in his hand on his legs, and picked up the materials that Ning Que had dropped on the ground.

"No, man, how did you know that we were working on nano titanium dioxide? We all signed a non-disclosure agreement, so we can't say anything about the content of this project. Ning Que also squatted down and asked blankly.

He couldn't understand why Zhang Yi knew this, on the first day he joined the research group, the teachers of the research group first emphasized the laboratory discipline to him, and one of the teachers repeatedly emphasized that that was the confidentiality of scientific research results.

"What's so strange about knowing this. "Zhang Yi finished picking up the materials on the ground, and said in his heart, I not only know what you are studying, but I also know what difficulties you have encountered.

However, looking at Ning Que's reaction, Zhang Yicai realized that the research on nanomaterials was still in its infancy in 98, and the research content would be kept strictly confidential.

In this situation, if he didn't understand how to know this content, it might arouse Ning Que's suspicions, so he had to casually make a reason and said: "I have studied rutile before, which is titanium dioxide mineral, and later I knew that it has a whitening and sunscreen effect, so I went over the wall to find the international research on titanium dioxide, so I knew the specific situation of nano titanium dioxide." ”

"Oh, I see. Ning Que let out a sigh of relief, it turned out that it was just a coincidence, thinking about it, how could Zhang Yi know the secret of nano titanium dioxide, it would be good to hear about it.

"Still. Zhang Yi paused and continued: "I should be able to solve the problems you encountered in your research. ”

The words are not shocking, and the death is endless!

"Really, you don't know what problems we encounter in our research, how do you solve them?" Ning Que said in surprise.

Zhang Yi shrugged his shoulders and said: "This is simple, since I know that you are making nano titanium dioxide, then I naturally know what problems you will encounter, because this road was later proven to be flawed." ”

This reason is very simple, Zhang Yi looks at the problems of 98 years with the technology of 19 years later, and it is normal to find technical defects. Technological development requires a process, and this process is to constantly correct and improve errors and deficiencies.

Just as more than 2,000 years ago, Aristotle, with his "confident intuition", believed that heavy objects fall because they have to find their natural position, and that the speed of the falling body is constant, and even that the heavy object falls faster than the light object. This view influenced Western academia for nearly 2,000 years until it was overturned by Galileo's free-fall experiments.

Feeling that his high school classmate suddenly became mysterious, Ning Que still couldn't accept it all of a sudden.

Obviously, he was just an ordinary college student like himself before, but now he seems to have become an expert, and he doesn't know if he pretended it on purpose, Ning Que has come to his senses, stared at Zhang Yi with a solemn expression and said seriously: "Zhang Yi, you tell me the truth, are you serious?"

"Really. "Knowing that Ning Que doesn't believe it, and this matter may involve deeper issues, Ning Que is just a junior student, and he is also the lowest existence in the research group, so he has no right to speak at all.

Zhang Yi already had more ideas at this time, he had a lot of technology in his hands, but it was difficult to transform it into productivity, just like holding gold and silver in his hand but unable to convert it into actual benefits.

When I encountered this incident this time, it was an opportunity for me to know that it would be difficult to convince Ning Que if I didn't come up with some dry goods, and more importantly, I had to convince the research team behind Ning Que.

Zhang Yi sorted out the thoughts in his mind and said: "You should have compared nano titanium dioxide and zinc oxide when you studied it, although this kind of material is more stable than organic ultraviolet absorbers, but it has a fatal weakness, that is, the surface polarity, so that the nanoparticles will agglomerate, thus losing ultraviolet absorption activity." ”

"Moreover, nano-titanium dioxide and zinc oxide have photocatalytic properties and produce free radicals in response to sunlight, which can cause irreversible damage to the skin. ”

"Just these two points, it will be difficult for you to solve, and it is destined to not work on this road, the previous sunscreen added titanium dioxide, although it has a certain whitening effect, but it is toxic. ”

Hearing Zhang Yi's explanation, Ning Que had already believed nine points, which was the same as what Professor Li said at the summary meeting, and it seems that Zhang Yi really understands this aspect.

"Then, do you have a solution?" Ning Que looked at Zhang Yi with a look of hope, for fear that he would pop out of his words.

"Yes, yes, but ......" Zhang Yi looked at Ning Que and hesitated, and said a little embarrassedly: "I want to talk to your teacher." ”

Zhang Yi knew that saying this would make Ning Que feel that he didn't trust him, and hoped that Ning Que wouldn't take it to heart, but it wasn't that he didn't believe him, but that these techniques were useless to him, and Ning Que had no right to decide.

"Let's go, what are you waiting for, hurry up and follow me to see Professor Li. But it seems that Ning Que didn't take it to heart, and happily pulled Zhang Yi to leave.

"Hey, what are you in a hurry, you don't take the materials? I can't take it alone. Zhang Yi said to Nunu, the material he was holding in his hand.

Ning Que patted his head and said with some embarrassment: "Look at me, I forgot about it in a hurry." ”

After speaking, he quickly took more than half of the materials from Zhang Yi's hand, and the two walked to the School of Materials together.

......

6th Floor, School of Materials.

When Ning Que took Zhang Yi to the door of Li Ze's office, the office door was closed, and Ning Que knocked on the door with his free hand.

The door was opened by a boy with staggered hair, wearing a plaid shirt that was neatly ironed and not wrinkled at all.

After seeing Ning Que, he asked, "Senior Brother Ning is back, have the materials been printed?" Professor Li is waiting for it. ”

"Senior Brother Ye, the materials are here. Senior brother, I have something very important to tell Professor Li, and I will leave the materials to you. Ning Que handed over the printed materials in his and Zhang Yi's hands to Ye Bin, and then went into the office after explaining a few words to Zhang Yi.

Zhang Yi was bored at the door, looked up at some of Professor Li's topics and important papers hanging on the wall of the road, and thought about how to deal with it later.

After waiting for about ten minutes, the office door opened, and Ning Que squeezed out half of his body from behind the office door and beckoned Zhang Yi to come in.

Zhang Yila opened the door and walked in, the office is not big, and there are two rooms, the outer one is estimated to be Professor Li's usual office and reception place, and the long experimental table inside is full of all kinds of experimental equipment, which is obviously a small laboratory.

Zhang Yi admired the fact that there was a small laboratory in the office, and Zhang Yi knew that many professors' offices were decorated as luxuriously as possible, with all kinds of potted plants, decorations on the table, and so on.

An office like Professor Li has its own laboratory, and when he is in the office, he suddenly has a flash of inspiration, and he can immediately carry out experimental verification, I have to say that it seems that Professor Li is still working hard in scientific research.

There is not even a leather sofa in the office laboratory, only a few half-person-high wooden chairs against the wall, at this time, in addition to Ye Bin, who opened the door for Ning Que for the first time, there is also a girl with short ear-length hair, a white T-shirt on the upper body, and denim shorts almost to the root of the thighs.

Sitting behind the desk in front of him should be Professor Li, in his 40s, with a Chinese face, well-groomed hair, and a dark gray suit, which looks a little old.

"Professor Li, this is my classmate Zhang Yi. Ning Que hurriedly introduced.

Professor Li nodded, then pointed to the chair in front of the desk and asked Zhang Yi, "You are Zhang Yi, sit, there is a chair there, I heard Ning Que say that you can solve the difficulties of my current topic?"

"That's right, I can solve Professor Li's problem. There were four chairs side by side against the wall, and Ning Que and the three of them had already sat down, leaving only an empty chair on the right hand side of the girl, Zhang Yi was not polite, and sat down on the chair.

"Hmph, it's really a lazy toad yawning and blowing nonsense!" The short-haired girl didn't raise her head, and swiped her pen around the small notebook, looking like she was writing.

Zhang Yi's butt was just next to the chair, and the girl sitting next to him gave him a dismount, Zhang Yi was also a little confused, how did he offend?