Fantasy: I am in the desert, but the system lets me be the city lord

Hope failed.

Zhou Lin was immediately dull.

However, the storage ring should be practiced, and it must be practiced.

Anyway.

These psychics in the yellow sand collar must have a ring in their hands, just in case.

"grown ups?"

Lao Hei looked at Zhou Lin who was lost in thought again, and whispered.

"Huh? What's wrong?"

Zhou Lin raised his head, with no expression on his face.

"Look at those..."

He pointed to the railway construction office.

The train has stopped.

Those refiners walked down spontaneously and walked over there.

They are quite interested now.

Because all the way is along the railway.

Before, I didn't know what the purpose of this railway was.

But after sitting on the high-speed train for so long, I seem to understand the significance of the railway.

The car is very stable.

This is due to the relationship laid by the railway.

Now they can have a close contact with how the railway is laid, and naturally they will not miss the opportunity.

Of course, more importantly, they all got benefits.

No matter how bad it was, they broke through a small realm, which changed their state of mind a lot, and they became interested in everything about Huang Shaling.

"Let them see that the key to the railway is not how to lay it."

Zhou Lin laughed, then threw out the thoughts in his mind and walked over.

Regardless of whether it is successful or not, these refiners still need to stay.

"How are you looking?"

Zhou Lin said to the group of refiners with a smile.

"My lord," the eldest brother is a big man over fifty years old, his whole body is smoky, and it seems that he has been burned a lot. Seeing Zhou Lin taking the initiative to greet them, he pointed to the front and said, "Why is there a fire under this railway?" What about gravel and wood?"

This is the only thing he can't understand.

Others, he felt that there was no technical content at all.

The rails are mass-produced, and the two ends are connected and the job is done.

He thinks this is taking off his pants and farting, it's superfluous.

"This..." Zhou Lin thought for a while, it should be time to show his abilities, so it is necessary to popularize some things that they have never touched before!

"Laying gravel is actually very simple, just like building a house and laying a foundation. As for these logs... we have a professional name, called sleepers!"

"sleeper?"

"For sleepers, pillows for pillows." Zhou Lin said with a smile: "When we sleep, we need pillows to make our heads sleep more comfortably. And railway sleepers can also evenly distribute the huge force of moving trains passing by."

The big brother nodded half-understood.

He seemed to know something vaguely, because he drank Michelle iced tea, so his thinking has been kept in a relatively clear state.

But after all, he doesn't understand these principles.

"Then my lord, why use wood instead of some other metal or something?"

In his opinion, even if it is made of iron, the things made of it are stronger, right?

Zhou Lin said with a smile: "The first reason is that iron ore is extremely scarce for us, and there are too many places where we need iron. The second reason is the principle of thermal expansion and contraction..."

"Expansion with heat and contraction with cold?"

It was the first time that the big brother heard such a novel word.

The rest of the refiners also leaned over.

"That's right. Generally speaking, when things get hot, they will grow bigger. If they are cold, they will shrink. Although it is invisible to the naked eye, this kind of situation does exist."

"Oh, that's how it is. I said that those steamed buns are so small when they are put in, and they become bigger when they are taken out of the cage. They just expand with heat and contract with cold!"

At some point, Meng Wuya also came over.

Zhou Lin: ...

I am so serious about popularizing scientific knowledge, can you stop making trouble?

Fortunately, you are still my queen inventor!