Chapter 249

It's hard!

Xu mang found that the surface of the acid soaked waste material was very hard.

Suddenly,

curiosity was attracted by this strange phenomenon. Why is the surface of soft waste material so hard after being soaked in acid?

You want to stop soaking?

What if it's soft?

Driven by curiosity and courage, Xu mang secretly threw the hard waste material into a glass filled with acid solution, and took it out again for a few seconds.

Then... Xu mang was completely lost.

Alas...

it's terrible.

It doesn't change back. It seems that it can't corrode.

What to do?

Xu mang glanced at the group members who were working hard and were preparing to speak. As a result, a female member called out: "Xu mang... Help us order a takeout, er... I'll have braised chicken."

With the first one taking the lead, the remaining four reported their own takeout one after another, and then Xu mang ordered them one by one. The more they ordered, the more angry they were. Could not they eat stewed chicken? Everyone ordered a takeaway.

Nima...

what a hassle.

But the trouble comes back to trouble. Xu mang still orders takeout in silence. After ordering, he goes downstairs and waits for takeout.

After a while,

took the takeout and rushed upstairs, came to the laboratory and yelled to five people: "here it comes, I rely on... I have a double department graduate student to help you order takeout. How old are you

Hearing Xu Mang's complaint, five people just smile, what can we do?

Cold sauce.

"Keke..."

"you are bored anyway." A member said with a smile, "Xu mang? I heard you have a very beautiful girlfriend in the school of economics? What's the name of Yang Xiaoman

"Yes."

"What's the matter?" Xu mang asked curiously, "Oh... Are you all single dogs?"

“？？？”

“？？？”

“？？？”

Sleeping trough!

Can you chat?

Five people are so angry.

"Ah?"

"I said Xu mang... You can't do whatever you want if you have a girlfriend." "It's great to have a girlfriend," said a male compatriot present? If you have a girlfriend, you need to obey the law, right

Xu mang chuckled. He was angry when he ordered takeout for these people. Now he finally found the opportunity to fight back. He retorted on the spot: "I'm sorry... It doesn't matter if you have a girlfriend. You don't have a girlfriend. You don't understand the happiness of our girlfriends."

"..."

"..."

"..."

damn it!

Is Xu mang so cheap?

Looking at Xu Mang's cheap expression, the five people would like to go up to be a punch.

This guy is not human at all.

"Say..."

"how's my girlfriend?" Xu asked curiously.

"Nothing."

"There's a picture of your girlfriend on Weibo, and then a group of gourd eaters choose your girlfriend as a female student God with both talent and beauty." The guy said, "you may be in danger if you go on like this. There are so many young talents. Maybe one or two of them are better than you, my fair lady... Right?"

"What?"

"A young talent better than me?" Xu mang was stunned for a moment and asked curiously, "brother... It's not me. Xu mang is narcissistic. From the heart, there is no one who can be more handsome than me."

Ha ha,

you are thinking of farting!

Five people eat takeout, and sneer at Xu mang.

In the past,

if others doubted his good looks, Xu mang would certainly be a good one and stick with them. Now, with the change of his identity, Xu Mang's mood has changed. His appearance is the same thing, but there is no interesting soul.

My soul is not only interesting, but also has a little skin in it.

Xiao man...

go to see her tomorrow morning?

"Ah?"

"You girls have come to relatives, do you want to be taken care of by others?" Xu mang asked: "then what... Is it that you come to relatives, your mood will be particularly impetuous, and then you want to find a person to beat in the dead?"

"Yes."

"Girls... There are a few days every month. You'd better not mess with them and beat you to death!" A girl at the scene said, "what do you do when you suddenly ask this question?"

"Curious."

"Pure curiosity." Xu mang said: "that comes the relative, that what, the boy should do?"

"How do I know?""I don't have a boyfriend!" "Xu Mang, are you on purpose? Are you making fun of us single people

Xu Mang: return to the nobility?

Cut!

"How could it be!" Xu mang face justice said: "you quickly say how to do, for example, you now come to relatives, what do you need your boyfriend to do?"

"Let me think..."

in words,

the girl tilted her head and began to think, and soon said, "well, if I come to a relative, I hope he will accompany me all the time. If I'm thirsty, I'll bring a cup of warm water, if I'm hungry, I'll bring a hot meal to my mouth, and if I'm tired of telling me fairy tales, I'll just stay with you."

See you tomorrow

Xu mang ran away.

...

in order to help the materials department complete the so-called latest material research and development, director Liu helped Xu mang apply for a room in the dormitory of his department. However, he did not return to his dormitory at this time. Instead, he took a thermos cup filled with donkey hide gelatin Red Jujube Syrup and went to Xiaoman's dormitory.

Of course,

in his satchel, there is not only a thermos cup, but also a physics book and a chemistry book, as well as a piece of waste material that he played with.

"Haha..."

"dear Queen?" Xu mang saw a gloomy face of Yang Xiaoman, his signature smile appeared on his face: "Alas... I gave you donkey hide gelatin red date syrup."

When Yang Xiaoman saw you Xu Mang's cheap smile, he was angry. But when he heard what he said, his anger disappeared, and he was suddenly enlightened.

"No drinking!"

Yang Xiaoman was lying on his bed and said with no expression: "I don't need blood."

"All right, all right." Xu mang said with a smile: "do not need to replenish blood, tonifying the body is also good, but I... er... I borrowed the school canteen to cook for three hours."

Cut!

Three hours?

What about the girls?

However...

soon, Yang Xiaoman was successfully fooled by Xu mang.

After half an hour,

"ah ~"

Yang Xiaoman opened his mouth happily: "I need another drink."

"Oh."

"That's the last bite." Xu mang poured the donkey hide gelatin red date sugar water in the thermos cup on the spoon, and then carefully handed it to Xiaoman's mouth.

In fact...

Yang Xiaoman is not cold at all with this donkey hide gelatin red date syrup. What she likes is Xu Mang's feeling of taking care of herself.

It would be nice to visit relatives every day,

so that you can enjoy the care of this idiot every day, or meticulous.

No way!

You'll lose too much blood and die.

"Ah?"

"In the future... Can you come to my dorm one day a week?" "Is it OK?" Yang asked shyly

"All right, all right!"

"How are you feeling now?" Xu mang put the thermos cup back into his satchel and asked curiously, "are you on the microblog headlines recently?"

"Ah?"

"I..." Yang Xiaoman was stunned for a moment. Originally, she planned to hide this matter, but she found that she couldn't hide it. Because the power of netizens is too strong, she is still in the top ten of the popularity list.

And the reason why Xiaoman wants to hide is that Xu mang will be confused.

"I pour is strange... You one..." Xu mang behind that short flat shriveled vocabulary swallows back, helplessly smiles a way: "isn't it?"

"It's you."

"Mother, I'm so charming. You're blind all over the world, OK?" Yang Xiaoman, who had a deep sense of guilt, disappeared in an instant. He resented: "I tell you, my current suitor is an imposed group. You should be tight with me, or you will become a single dog in minutes."

Ha ha,

cut!

Is beauty a joke?

Xu mang didn't care at all. He found a chair and put it by Xiaoman's bed. Then he took out a chemistry book and looked at the contents carefully.

During the summer vacation,

Xu mang had already triggered his chemical skills. At this time, the value of his chemical skills was not much, which was barely enough to reach 10000.

How to say,

junior high school graduate chemistry level.

"Hello?"

"Didn't you come to accompany me?" Yang Xiaoman lay on the bed and looked at him resentfully: "put down the book and chat with me!"

"Oh..."

Xu mang felt that he was too much. He came to accompany Xiaoman, but in a flash he went to study.

Yang Xiaoman: (~ ~)

very angry!Really angry!

Before not together, why not love to learn how to come, now two people together, suddenly fell in love with learning?

On purpose?

What about good girls? How can I become a catalyst for his diligence and learning?

"What do you say during the day?"

"You were kidnapped by the materials department?" Yang Xiaoman asked curiously, "what's the situation?"

"Don't mention it!"

"I've been caught." Xu sighed blankly: "let me develop what phase change material, I know a hammer phase change."

"Vanadium dioxide?" Yang Xiaoman asked.

"Alas!"

"How do you know?" Xu looked at Xiaoman in surprise.

At this time,

Yang Xiaoman's face appeared a trace of arrogance: "I am recognized on Weibo as the invincible and super beautiful female school God!"

"Do you know what the vanadium dioxide is like?" Xu asked.

"Want to know?"

"Well!"

"It's up to you." Yang Xiaoman said triumphantly, "let's start."

Xu Mang's face is confused, how to start? Start what?

All of a sudden,

seeing Xiaoman close his eyes and his mouth slightly pursed, if it wasn't for her expectant look, Xu mang might have thought that she had been wronged.

Alas...

in the end, we have come to this step.

For the sake of science, you have to sacrifice yourself!

(* ~ 3) (ε ￣ *)

after three seconds,

Yang Xiaoman angrily yelled: "Hello! You have gone too far

"What's wrong with me?" Xu Mang's face was gloomy.

"Is there anything like you?" Yang Xiaoman took off and said, "in the future, it must be more than one minute!"

I'm...

ouch,

got on the thief ship.

Xu sighed blankly and asked in silence, "Oh... Tell me about vanadium dioxide. It's better to change the situation."

"Vanadium dioxide is a kind of metal oxide material. Although it has phase transition property, it can only operate at a temperature below 100, and the phase transformation condition is 68 degrees, which leads to high requirements for the working temperature of this material."

"But adding germanium to the vanadium dioxide film, which has an atomic number of 32 and an atomic weight of 72.64, can make the vanadium dioxide work at a temperature of more than one Baidu." Yang Xiaoman said.

Germanium?

Xu mang had already recited the chemical periodic table, and knew that in the fourth cycle, it seemed to be a good semiconductor material.

"What's the relationship between vanadium dioxide and hydrogen?" Xu asked.

"Hydrogen atoms play a role in regulating phase transition in vanadium dioxide." Yang Xiaoman explained: "it can change the fluidity of vanadium dioxide membrane grease, according to the temperature. At present, high energy consumption of temperature and pressure, as well as precious metal catalysts are used to obtain, but the catalytic metal deposited on the surface is still difficult to eliminate."

I see!

Xu mang felt the piece of waste material in his pocket.

"Look at this for me." Xu mang took out the waste material and asked curiously, "why am I so hard and can't be corroded by acid?"

"..."

"how is it possible?" Yang Xiaoman was surprised and asked, "where did you pick it up?"

"Laboratory."

"The leader of their team asked me to clean up the waste material. I forgot to use plastic tweezers, hold iron tweezers to hold the waste material and throw it directly into the acid solute, and then it became like this." "Now it's not just hardening, it won't be corroded by acid."

"No way!"

Yang Xiaoman immediately shook his head and said firmly: "unless the surface of this thing is attached with a layer of hydrogen atom, otherwise it is impossible!"

Xu mang suddenly discovered the new world.

......

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