"After all, I'm not a devil. I can't afford to tease you like this."

"This is indeed the core of the low-temperature kiln."

"And everyone, this is a low-temperature kiln that makes fire. Shouldn't we let it have something to do with fire?"

"Although your imagination is quite big, you still need to pay attention to some basic methods when using your imagination~"

As he spoke, Ren Yan glanced around the students again, and the students fell into deep thought again.

Not long after, a student finally spoke with insufficient confidence:

"Teacher Ren, I think this thing can increase the flame."

As soon as he said this, Ren Yan's eyes immediately flashed and he looked at the student.

This student is not big in stature and looks quite honest. He is the kind of ordinary person who looks like a common person and disappears as soon as he is thrown into a crowd.

However, Ren Yan still had some impressions of this student.

This boy's name is Shi Lei. Although his name sounds strong, he is actually only a little stronger than Li Qi.

He doesn't have much of a presence in the class. He is average in everything and is easily forgotten after a few years of graduation.

But now, he is the first person to tell the correct answer.

Ren Yan looked at Shi Lei with interest: "Xiao Lei, tell me, what do you think?"

For a moment, all the students looked at Shi Lei.

Shi Lei became a little nervous for no reason, and replied weakly: "That."

"Mainly because I thought of the pit we used for cooking during our outings, which is very similar to this one."

"At that time, the pit was used to light fires."

"Teacher Ren, the mud cakes you made look like briquettes."

"I thought it might have the same effect as briquettes."

"Behousing briquettes can gather flames to achieve the effect of condensing heat and intensifying combustion."

"so."

"So you think this thing has the same effect?" Ren Yan asked with a smile.

Shi Lei nodded.

The students immediately looked at Ren Yan and asked, "Teacher Ren, is that right?"

"When we answered just now, you never had such a reaction!"

"That's right!" Ren Yan nodded: "Shi Lei's answer is correct."

"This thing is indeed used to gather the flame and increase the temperature. It is also the most important step in firing stone bricks."

"Without the existence of this thing, the temperature would simply not be enough."

"As for why it gathers flames, you can go back and read the relevant physics books, especially the energy conversion. I'm too lazy to talk to you here, it's too complicated."

"To put it simply, it effectively aggregates the energy of the flame and increases the temperature."

Then Ren Yan looked at Shi Lei again: "Ah Lei, the answer is correct. You can be more confident. There is no need to be so submissive all the time."

Hearing this, other students also looked at Shi Lei, and Li Cheng directly hugged Shi Lei's neck: "That's right, stone!"

"You don't have to be like this at all. Smile more, that's great~"

"Why are you always so downbeat~"

Hearing this, Shi Lei could only smile reluctantly.

Ren Yan shook his head slightly in his heart. He knew that this kind of thing could not be changed immediately, but could only be done slowly.

Then he looked at Shi Lei and asked, "Okay, do you have any requirements now?"

After hearing this, the students began to come up with ideas.

Some asked Teacher Ren to stand on his head, some asked Teacher Ren to act constipated, and some asked Teacher Ren to talk about embarrassing things from before.

Anyway, they were all here to embarrass Ren Yan.

Ren Yan rolled his eyes in his heart, these guys really didn't hold anything back!

'Fortunately I was prepared in advance!'

Ren Yan felt slightly proud.

What do you say about this wave?

It’s almost like I predicted your prediction!

However, Shi Lei said weakly after being entangled for a while:

"Teacher Ren, can I use this reward later?"

"I haven't figured out how to use it yet."

For a moment, the students were all disappointed.

Only Ren Yan thought briefly and nodded slightly:

"sure."

"As for the deadline, it will be until you graduate~"

Five chapters finished today!

The next update will probably be on the 30th!

It’s not that I was slow to update. It was because my computer almost crashed in the end.

After handing out the books, I quickly went to see what was going on with the computer.
Chapter completed!