Dong Junwei really wanted to slap herself twice at this time, and the consequences of questioning Tang Daba's tyrant were very serious.

"The density of copper is about 88, stainless steel is 78, aluminum is 27, and in terms of melting point, copper is 1083,; Aluminum 660......"

Sure enough, for the next few minutes, Chen Du and Dong Junwei were basically listening to Tang Jing recite the various properties of the three metals.

"Intuitively, the melting point seems to have something to do with it." After hearing this, Chen Du said, "But the order seems to be wrong. ”

"Well, among these attributes, only the density is in order."

"And it's about density?"

"But." Dong Junwei retorted; "In my opinion, the difference between the heat storage capacity of copper and stainless steel is quite big, but the density of the two is not much different."

"After talking for a long time, there is still no pattern?"

"The properties of metals are much more than that, first look at the heat storage time of copper and aluminum, and then find the pattern."

After all, in terms of temperature, there is no means of measurement for the time being, but the time can be estimated by Tang Jing.

This matter can only be put aside for the time being.

At the afternoon meeting, Dong Junwei announced the overall plan for Qiming's next step, that is, to shift the focus of work from construction to expansion.

"As we all know, it is basically impossible for us to return to our old life, for the sake of long-term consideration, development is imperative, and history has proved that if we are backward, we will be beaten......

"Next, our number may increase significantly in a short period of time, I hope everyone is mentally prepared, before that, I will assign a position to everyone......

"In addition, the regulations before Qiming, in fact, we did not strictly implement them, but after the number of people increases, it is definitely not enough to rely on consciousness, so I still need to emphasize here......

"In terms of field service, Chen Du is still in charge of overall management, because the follow-up construction of the family no longer needs so many people, so everyone is welcome to sign up for the field team, no matter what ability or even no ability......

"Of course, signing up doesn't mean that you will have to go out, Qiming will be responsible for the safety of every member, and will not let you take risks without the corresponding ability......

“……”

After the meeting.

Sun Yuan ran to Chen Dui's side to sign up for the first time.

This guy's ability is very suitable for going out on duty, Chen Du is naturally very welcome, of course, Zhu Hao and Chang Junyan, who came over in the future, belong to joining in the fun.

Because the total number of people is too small, in the last statistic, all the boys have signed up for the field team, and among the girls, there are also Zhao Xiaoyan and He Ying.

Although it was impossible to bring everyone out, Chen Du still felt quite relieved to have this atmosphere.

Everyone knows the dangers of going out.

And because of Du Jiajia at home, Qingbei obviously didn't dare to come to the door again in the short term, plus various measures such as the fort, the safety can basically be guaranteed.

……

Evening.

After Chen Du helped make some parts, he let Tang Jing and Yu Yuan go to the combination and installation.

Although the little fat man's ability cannot be fully mastered, the impact of getting along with others in a short time is not very great.

Looking at the current progress, in two days, the latest power shuttleless loom will be completed.

If we could produce cloth that could be used by humans today, the problem of clothing would be almost solved.

Nowadays, although everyone can wash their clothes every day when they take a bath, the wear and tear of the clothes becomes more and more obvious after a long time.

Originally, an ordinary school uniform could be worn for at least three or four years, but because one was worn every day, and there were many more cases of crawling and rolling than when they were in school, in just three months, many people's clothes were already torn.

The most excessive is Wei Dalei, because he has the most work, and his strength is too great, his clothes are the most damaged, and now his body has been sewn in several places, and there are even some places where there is no way to sew it again, so he can only let it open.

Everyone's clothes are damaged to varying degrees.

But because of this, some people have discovered their talents.

Zhao Xiaoyan is surprisingly talented in sewing.

Where can a student of this age do any needlework, even Chen Duan will not sew clothes by himself, Zhao Xiaoyan is of course no exception, but after sewing clothes for Wei Dalei a few times, his skills are getting better and better, and then he contracted all the sewing work in the team.

This also gave her, who has always done the least, a great sense of accomplishment.

……

It's not dinner time yet.

Chen Du went to pour a glass of water, and after sucking it dry, he let out a long breath.

At this moment, Chang Junyan also came over, and Dong Junwei's work was basically coming to an end.

"Chen Dui, is Tang Jing done over there?"

"I guess it will take a while, and I'm thinking about the loom with Yu Yuan." Chen Du was curious: "Do you have something to do with her?" ”

"It's the same with you." 、

Chang Junyan smiled mysteriously, "My ability seems to have made another breakthrough." ”

"Oh?"

Chen Du put down the cup, very interested, said that although this guy is a little funny, but he can often surprise people, in terms of ability, the growth is not bad, among all the people in Qiming, regardless of the level of effort or talent, can be stable in the top five.

Of course, about hard work, others are somewhat unconvinced, after all, tickling every day is not much diligence.

Chen Du asked, "What do you say?" What's your trick up again? Got a bigger bag? ”

"It's always been growing in this area, I can now fill my whole arm with a bag, do you want to see ......?"

"Don't!"

Chen Du remembered the last time this guy was densely covered with small bags on his arms to show off, which would make the person with dense phobia die on the spot.

"Don't be afraid, you don't like small ones, I can make them big, I can grow a bun into the size of a steamed bun now, do you want to see it......"

"No need." Chen Dui also knew how permeable that scene was, and hurriedly said, "Something to say, what is the growth again?" ”

"Hehe, I'll show you."

I saw Chang Junyan look around sneaky, and then said with a little weakness, "But after I demonstrate, you can't be angry, let alone retaliate." ”

"As for it, it's just disgusting." Chen Du smiled and said, "Okay, I'm mentally prepared and promised you." ”

"You swear." Chang Junyan did not give up.

"I swear." Chen Du was helpless.

"Then I'll demonstrate it." Chang Junyan took a deep breath and confirmed, "Don't be angry." ”

"I'm going to be angry if you don't say it again."

"Okay."

After Chang Junyan finished speaking, he took a step back, and then took a decent step on a horse, and pushed forward with both hands as if he was working.

Chen Du looked at him as if he was pretending to be a ghost, and was about to laugh out loud, when his heart suddenly jumped, and a sense of uneasiness that made his scalp tingle spontaneously arise.

。

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