Magicraft Meister Part 3

"As I recall, the resistance of a ship is <><>><> ......"

To be precise, it is wave making resistance, viscous pressure resistance, and viscous friction resistance.

"I heard about wave making resistance from Jin a long time ago."

Wavemaking resistance is the loss due to waves generated by the hull as it moves forward, which grows in proportion to the square of the speed.

Fluid mechanics is used to predict and calculate such resistance, but unfortunately, this is something that is taught for the first time in science and engineering universities, and Hitoshi did not know much about it.

That being said, Jin did not disclose all of his knowledge about such ships at ......, <<400 years ago>> he thought, << perhaps not at all. Now Jin thought.

No wonder. A little inefficiency can be managed with the abundance of power.

It was the same with the ship.

"Yes. There is also <> and <>."

"<> is kind of obvious. It's the resistance you get when you face water head-on, right?"

"Well, I guess you could say that. It seems to be ...... more precisely pulled back by the negative pressure of a vortex or something that forms behind the ship.

"Oh, I see!"

Marcia, who had done a lot of tests underwater, seemed to understand Jin's explanation.

"The other thing is . This can be understood by considering if water were a more viscous liquid.

"I see. I can see that."

"Perhaps Marcia's experiment looks at <> and <>. And maybe the <> is being overlooked."

This explanation from Jin made Marcia feel as if the scales had fallen from her eyes.

"By the way, the outside of the ship I built is treated with to reduce the coefficient of friction as much as possible.

This is not about experimentation, the lower the better.

"I see, that's one of the reasons why Jin's ships are so good!"

Marcia's face cleared up as she understood.

"Yeah, so in case of emergency, we can use the as well."

This way, the hull is not in direct contact with the water, so <> can be ignored, and <><> is also eliminated, which means that the boat is faster.

"I see, waves may be created, but it is not the boat that is creating the waves, but the boundary, so there is no loss of propulsive force of the boat itself."

"That's what I meant."

"Yes, Jin's ship is special. It's a foul. It's unreasonable.

"Hey, hey, hey..."

I'm kidding. But I want to do something without it.

Jin understood and agreed with Marcia.

"Most of what I've made so far is because I needed it. But if it's purely a hobby, I think it's fine to go all the way, as Marcia says.

Very little of Jin's work is hobbyist. Reiko and Golem, as well as aircraft, ships, and spaceships,...... were almost always made to protect the peace and quiet of life.

There is barely a wooden ship <> that was made by binding.

* * * * * * * * * * * *

"Well, let's resume our experiments.

Marcia takes a break and gets up. Jin follows suit.

"Good luck!"

"Yeah, of course."

Jin and Mini-Reiko returned to the laboratory.

* * * *

"Father, I heard that Mr. Stearina has started to make something, right?

"Huh?"

Jin, intrigued by Mini-Reiko's comment, decided to go to Stearina's workshop.

"Oh!"

The place was filled with green ...... or rather, young grass-colored light.

"Peridotite, isn't it?"

Mini Reiko, who was sitting on Jin's shoulder, muttered.

Peridotite is a volcanic mineral.

Among them, kudo peridot is called peridot or olivine because of its young grass or green apple color.

The name olivine is also said to be derived from its olive color.

And since it is a volcanic mineral, a considerable amount of it is produced on Horai Island.

As a side note, one of the five-colored golem maids, Perido, is named as such because of its green eyes.

"Oh, Jin-kun."

Stearina, who had been working on the project with all her might, noticed Jin.

"Are you making a golem?"

"Yes. As you can see, I'm making a green this time.

It's just like Stearina, Jin thought.

She used to make crystal golems of clear crystal and topaz golems of blue topaz.

This time it's the Peridot Golem.

"Engineering magic is useful. Peridot this big would be impossible to find.

Because peridot forms in the upper part of magma, which cools relatively fast, there are few large crystals, and most of them are small.

So Stearina used her engineering magic < and to create giant peridot, which she then used to make a golem.

"This is beautiful too. ......"

Stearina's sculptures are always superb, and this golem is no exception, or rather, the most beautiful one yet, Jin commented.

"Thank you. I'll have it finished by dinner time tonight, and I'll show it off to everyone."

"I'm looking forward to it."

Jin left the place, not feeling comfortable to watch the process.

* * * * * *

"I wonder if it's because of your father's work on ."

Jin went back to to have lunch.

By the way, the members of Jin's family are going to prepare and eat their own lunch today, so he and Elsa are alone ...... with Reiko, who is having a mini ...... lunch.

"Well, I think Rai is also thinking of building a new or for the next generation."

"I'm sure Reinhardt is. ......"

I wonder if anyone else is making something," Jin muttered,

"Not making things, but Saki is working on something.

"Saki is, huh? ......"

Jin understood that she was originally an alchemist, in other words a chemist.

"And Beena is also working on something."

"I see."

Bina is also a magecraftsman of the common people who was once called <, so it is not surprising that she has started to do so.

"Do you want to make something too, Elsa?"

Her former squire Edgar is now in the service of Shu Nido.

"No, I'm good."

Erza said she had no particular desire to do so.

But she continued,

"I want to study healing magic and plant magic."

She also said that she wanted to study healing magic and plant magic.