No, it's okay. - That's what I meant. It's just that when I don't know how many times I've done this before, I'm less impressed."
"That's just like Eira."
Jin laughed. Then Katya came in,
"Well, actually, you put Jin-san first, didn't you?"
Eira was upset because he told her.
"Hey, Katya, don't say that!"
"Ha-ha, thank you."
Jin then spread the documents he had brought on the table.
"This is the magic circle I made in the past.
"Oh, that brings back memories! We didn't have a single magic stone at our disposal back then! ...... No, now that I look at it, it's not so efficient!"
"Yeah. "Yeah. So, I still think this is a good use for it.
Now that we can afford it, it's possible to sort it by application.
"I think it's suitable for the purpose of operating at a constant output for a long period of time.
Jin says,
"I agree. It is not so suitable for applications where the output can be increased or decreased.
Eira agreed with me.
"Then, it might be suitable for pumping pumps.
Katya said.
"Oh, yes. That would be a good application.
Both Jin and Eira thought that such magic tools could be used for pumps that are in constant motion 24 hours a day.
"And then we can use it to boil water in the bathroom..."
Jin said,
"You like taking a bath, don't you?
Ka-cea said to Jin, "You like to take a bath.
"Well, um, by the way, here's a magic circle I've been thinking about..."
He coughed and spread another sheet of paper on the table.
"Oh, this is ......."
Eira groaned.
"So you're trying to make it spherical instead of multiple structures?"
"Yes, this way we can reduce the time loss when jumping at the juncture of the movement.
"So you can make it like this because it's engraved on a magic board (plate)! That's why you can do it like this!
< is made of non-crystalline stone plates such as quartz.
Therefore, by using <, it is possible to obtain large materials from small <> and scrap materials.
"Thank goodness for engineering magic!"
Eira was delighted as she considered the application.
"So, this is how Jin constructed it."
"Hmm? Eira, do you have any good ideas?
"I got the idea from Jin's spherical magic circle. You don't have to go to the trouble of making it spherical, you can do it like this: ......"
Eira drew a picture in the margin of the paper, showing several magic circles angled and joined together three-dimensionally.
"I think this is enough for simple movements."
"Oh, I see."
The idea is to carve a magic circle on the surface of a cube in order to combine six magic circles.
"Surely, there are many magic tools that can be used in this way."
Four magic circles could be made on a tetrahedron.
"Depending on the number of branches, it could be a polygonal pillar, right?
says Katya, who is good at mathematics.
"Yes, that's right.
"It would be interesting to consider it as a three-dimensional magic circle.
Thus, Jin, Eira, and Cachier proceeded with their first discussion in a while.