1959: Carrying the achievement system, she rolled

Yu Lang had just said something sentimental when a sudden gust of cold wind blew, making the windows creak, and Du Yimeng couldn't help but shiver.

"I feel like it's a bit silly for the two of us to sit here. Why don't we go into bed?" Du Yimeng asked in confusion. Who said that one can't stay up all night to celebrate the New Year in bed?

"I'll listen to you!" Yu Lang said with a smile. No matter whether what she said made sense or not, he would just listen to her.

As he expected, the person who was staying up all night fell asleep in less than three minutes after getting into bed.

……

The next day, when Du Yimeng opened her eyes, the sun was already high in the sky. She looked around and saw that the father and daughter were no longer on the bed. She was once again the last one to get up.

After she got dressed and washed up, she came out and saw Yu Lang chatting with Wan Ping, but the atmosphere between them seemed a little solemn.

She was full of confusion. Didn't these two people not get along?

She walked over quietly, and after hearing what the two were talking about, she looked at Wan Ping with a strange expression on her face.

She never imagined that Wan Ping came to ask Yu Lang for advice on how to make clothes. It sounded very mysterious that a researcher was asking a gun wielder for advice on how to make clothes.

"Don't pretend. I know everything. Your Fang Bao's clothes must have been made by you, because Comrade Du doesn't have this skill. As long as you teach me how to make clothes, I will keep it to myself and won't tell anyone." Wan Ping said proudly. He had guessed it, and he was still pretending to him.

When he guessed that Yu Lang could not only wash clothes, cook and take care of children, but also make clothes, he was shocked at that moment.

This is too virtuous, and it puts a lot of pressure on him as a man!

I didn’t expect that a grown man could thread a needle. I’m so envious!

His child would be born soon. He didn't know how to sew clothes, and neither did his wife.

So he wanted to learn how to make clothes before his child was born, and he originally planned to learn from his wife.

When he saw the clothes that Xiao Mu was wearing, he immediately rejected the idea because the sewing skills were too poor.

However, when he saw the clothes on Fang Bao, his eyes lit up.

Du Yimeng, who had just walked over, happened to hear these words, which made her speechless. She was shot even when she was lying down.

She really doesn't have this skill, but does she have to say it out loud?

"I've also told you that Fang Bao's clothes were made by others." Yu Lang gritted his teeth and refused to give in. Wouldn't he have any dignity if outsiders knew that he, a grown man, was the middleman?

It was indeed he who sewed Fang Bao's clothes stitch by stitch, but he did it quietly behind closed doors.

"I saw you making clothes for Fang Bao!" Wan Ping was anxious. Why was this guy so stubborn?

He just wanted to ask how to make clothes, why is it so difficult?

If Yu Lang asked him about mechanical knowledge, he would definitely teach him without reservation.

Yu Lang turned his head and ignored Wan Ping. Every time he took the needle, he would keep his eyes and ears open. If you want to cheat him, forget it!

"When did you see it?" Du Yimeng asked curiously. Given Yu Lang's vigilance, outsiders should not have the chance to see it.

"Once I saw Fang Bao's cotton-padded jacket was scratched, and it was patched up the next day. It wasn't Comrade Yu who did it, so could it be you who did it?" Wan Ping said smugly.

"Uncle Wan, you are wrong. My cotton-padded jacket was mended by my mother." Without waiting for Du Yimeng to say anything, Fang Bao spoke first.

"Comrade Du, is it really you?" Wan Ping asked in disbelief. He thought he had something on Yu Lang, but he didn't expect that he was overthinking it. This was a bit embarrassing.

"I told you a long time ago, have you forgotten?" Du Yimeng asked back. She really knew how to do such a small thing as patching.

"What?" Wan Ping was confused. When had she told him this? Why didn't he remember it?

"I told you a long time ago that I am well-rounded." Du Yimeng said with a smile.

Wan Ping: This time, she was so pretentious!

"If you really want to learn, go ask Aunt Song. Her needlework is one of the best in our family compound." Du Yimeng suggested. In short, just don't come and mess with her Yu Lang.

She also understood why Yu Lang kept this matter a secret. Men, after all, have a little self-esteem.

Before leaving, Wan Ping looked at Yu Lang with disappointment. He had just envied him, but he didn't expect it was in vain.

As soon as Wan Ping left, Yu Lang breathed a sigh of relief. His face was finally saved!

Washing clothes, cooking and taking care of children are helpless acts. If people knew that he could even do clothes, some people might suspect that he had some kind of mental illness.

Even if face falls on the ground, you have to pick it up, mend it, and put it back on your face.

Then his body stiffened. Why did he feel that he was becoming more and more like his uncle?

This New Year passed so quietly. During the three-day holiday, most people did not go out because it was snowing heavily outside and it was inconvenient to travel.

In fact, even if travel is convenient, these researchers would rather stay in the laboratory than go out for a walk due to their homebody nature.

……

On the third day of the first lunar month, Du Yimeng returned to work and came to the general components laboratory early in the morning. She already had an idea of ​​what materials to use to make the composite armor.

This also shows that she didn't just sleep in during her three-day holiday. While resting, her brain was still working rapidly.

"Mr. Qiao, what do you think of quartz sand?" Du Yimeng asked Mr. Qiao. Quartz sand has high hardness, high wear resistance and good compressive strength.

These properties can be exploited to enable quartz sand to provide an additional layer of protection in composite armor, thereby enhancing the armor's impact resistance and penetration resistance.

"Quartz sand?" Mr. Qiao asked in surprise, then frowned. He had thought about it before, but he rejected it every time.

Even if the quartz sand is ground into fine powder and made into panels, it can play a protective role, but it cannot meet his requirements.

"We can use the physical and chemical properties of quartz sand and combine it with other materials to make a multi-layer composite structural material." Du Yimeng suggested that if used well, the overall protective performance of the armor can be further improved.

She was thinking not only of the protective armor in front of the vehicle, but of the whole thing.

"We can try it first." Engineer Qiao said after thinking for a long time. Each material has its own characteristics, and combining different materials will often produce different results.

Finally, after step-by-step testing and analysis, it was decided to use quartz sand, sawdust, rubber and other ingredients to make composite structural components.

To be on the safe side, live-fire tests were conducted later. Although the protective capabilities were not as strong as those of ceramic composite armor, they were already very good.