"Then the deadline will last until you graduate~"
Listening to Ren Yan's answer and watching Shi Lei nod.
The students in Class 9 suddenly felt a little messy.
How could you agree so easily?
What a great opportunity to play a trick on Teacher Ren~
How could Shi Lei postpone it so easily?
With the mentality of giving it one more try, the students of Class 9 continued to persuade.
The reason is nothing more than this.
There is no such shop after this village~
You should stop when you are ahead, and what you get is yours.
In a word, Shi Lei should enjoy himself while he can and not waste this rare opportunity.
But in the end, Shi Lei shook his head and rejected all the classmates' suggestions.
It’s not that he wasn’t tempted, but he always felt that it was a waste to use such a good opportunity to do these trivial things.
If his classmates could offer some constructive suggestions, he might listen to them.
But now, Shi Lei still wants to keep this opportunity and use it when needed in the future.
"Alright, alright, stop encouraging Shi Lei. Instead of wasting time on this, you might as well increase your knowledge. Next time, you can hold the right to make requests in your own hands. Then you can get whatever you want, right?"
Ren Yan on the side spoke calmly.
Upon hearing this, the students in Class 9 were all startled, and instantly became alert: "Teacher Ren, will there be a next time for this kind of prize-winning guessing contest?!"
"Huh, who knows~" Ren Yan shrugged, without giving a direct answer, and changed the subject: "But now, let's continue to deal with the problem of the low-temperature kiln."
"Otherwise, I'm afraid you won't be able to live in the brick house when school starts."
Having said that, Ren Yan squatted next to the mud pie again and began to pile up mud along the edge of the mud pie.
"Now, we have the most basic means to increase firepower, so the next step is to make a basic building shell."
"There are various styles of low-temperature kilns. As long as they can accommodate what you want to calcine, in theory, you can make them in any shape."
"However, there is also a most basic requirement during this period, which is to allow the low-temperature kiln to perfectly absorb the firepower below, so the initial base must be built along the mud cake we made earlier, and it is best to make it fit perfectly."
"This will prevent the firepower from leaking out and will greatly improve efficiency."
"Of course, if you want to make more bricks at one time, you can make the fire mud cakes bigger. Here I will simply tell you the principle, so you don't have to make them so big."
As he spoke, Ren Yan began to pile up the soil layer by layer on top of the fixed base.
The class nine students standing nearby were a little puzzled: "Teacher Ren, since we need to clear the fire, then do we really not need to dry this mud cake before using it?"
"If it's wet, will it affect the dispersion of the firepower?"
Hearing this, Ren Yan turned around and glanced at the students, with a hint of appreciation in his eyes: "That's a good question."
"In fact, in general, this fire hole is mostly made of some iron products, and the problem you mentioned will not exist."
"But now the environment is so primitive that we can only use mud."
"In theory, sun drying does improve the effect, and it is definitely better than keeping it wet."
"But it's not that the wet ones can't be used. We just need to light a fire first to dry it out and check the outer shell of the low-temperature kiln to see if there are any exposed fire spots."
"It's like killing two birds with one stone, and it can also save a lot of time."
“So I didn’t go to dry it.”
As he spoke, Ren Yan gave another instruction:
"But remember, any building that requires firing needs to be tested for completeness after completion."
"This step cannot be saved in any way."
"It is not only to improve the yield rate of products and save materials in the future."
"It's also for your own safety."
"You must always be vigilant against anything that has anything to do with fire, even if it looks harmless."
"Did you understand?"
After saying that, Ren Yan looked at the students of Class 9 steadily, his expression slightly serious.
When they were about to play with fire, Ren Yan felt that he still needed to make them more vigilant.
After all, fire has always been synonymous with explosion since ancient times, and it never jokes with anyone.
Otherwise, there would be no such profession as firefighter.
Countless people have died in seas of fire throughout history, and he doesn't want anything to happen to these kids.
Seeing Ren Yan's slightly serious expression, the students also put away their giggling smiles and nodded in response:
"Got it, Teacher Ren. We will definitely follow every step strictly."
"Strictly guard product quality control issues!"
This answer made Ren Yan roll his eyes.
Then the students asked, "But Teacher Ren, why do you have to pile up the soil layer by layer?"
"Can't we just do it all at once?"
"No." Ren Yan shook his head. "Let's not talk about whether it can be done in one go without collapsing. Just making the surrounding mud walls the same thickness is a very difficult task."
“When building something, remember not to rush. It’s best to proceed step by step, so that the things you build can last longer.”
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