377 - - 12-27 Making Elza glasses
After leaving the hot spring, Saki and Erza returned to Nido Castle. Jin was already awake,
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"Brother Jin, I want to go to the observatory again.
Erza said, "Brother Jin, I want to go to the observatory again.
So we went up to the 6th floor.
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"......"
"Huh.
"......2 both of you, you're slow."
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Elsa was the strongest.
"Oh, this is a nice view."
"Yeah, it's a nice view."
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The mountains to the east were covered with fresh greenery in early summer, the Erme River was below us to the south, and the Togo Pass was in the distance.
To the west is a wide expanse of virgin forest, to the north is the village of Kaina, and in the distance are the glacier-capped peaks of the high mountains.
"It's a nice and quiet environment.
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Saki fixes her glasses as she says this.
"...... Saki, can I see your glasses?"
"Yeah, sure. Yeah, sure. ......Here."
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"Thanks."
Erza thanked him and took the glasses, looking at their structure,
"I understand it well. This is the first time I've seen them in person. It is a tool to correct myopia with concave lenses.
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She says, "But...
"But..."
"But..."
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They don't look good on Saki.
"...... Ugh."
Jin was the most devastated by these words. He was aware that he himself had no sense of design.
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"Jin, you should change the design a little more," Erza told Jin.
When Erza told Jin to change the design, Jin replied, "Well, Erza, go ahead and do it. It's good practice for me.
"Yes, I'll try."
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In any case, they would have to finish breakfast first.
Breakfast was barley porridge and fried eggs. And grilled river fish. Citran for dessert. Behle was in charge of the cooking.
"Hmm, a sweet plain omelet.
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Saki described the omelet as such, and Jin tasted it with a nostalgic look. Erza noticed this.
"Brother Jin, does this taste like something from your country?
"Huh? Yes, it is. It's one of the common egg dishes.
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It's a pity there is no soy sauce to add as a secret ingredient.
"Hmm, citran. This is delicious.
Citran brought from Horai Island. Its taste is well-known.
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Except for the citran, the meal clearly showed that Behré's skills had improved.
Jin called Behré and praised him for his improvement. Elsa and Saki also complimented him on the food.
"Thank you very much, all the practice was worth it.
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When Behrle was praised by all three, he smiled happily, bowed, and walked away.
"Now then, let's make some glasses.
At Jin's workshop at Martha's house in the village of Kaina.
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Erza first examines the materials. There are some rare materials brought from Horai Island.
Among them, Erza chose light silver.
"Hmmm, you've found it..."
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Jin is impressed. Light silver is what we call titanium in modern earth, a metal that does not cause metal allergies. It is also lightweight. It is ideal for eyeglass frames.
Next, Elsa, like Jin, chose quartz as the material for lenses.
"<
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The necessary amount of light silver is secured and processed. The basic structure is based on the glasses made by Jin.
"......"
Jin was impressed by the design. It is a rounded horizontal oval shape. It is similar to a design called an oval.
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The prototype Jin made was made of 925 silver, but this one was made of light silver, which made it stronger and slimmer.
After all this time, Elsa's sense of design is superior to Jin's. It is no wonder that Jin was defeated because the vector is a little different from that of engineering.
"<
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Next is a lens. It was good until they made a concave lens by deforming a crystal.
"......? ......"
Elsa looks at Jin's face silently, not knowing how to adjust the degree of the lens. Jin saw what she was trying to do,
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"First, I'll make the lenses for you, and then you can actually wear them and adjust them."
He advised.
"...... got it. <
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Erza re-processed it again. Then Jin interrupted.
"Wait, Erza. <
"<
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The question came from Saki.
"Yes, meniscus means crescent moon.
"Crescent moon?"
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The moon in this world does not wax and wane. Saki is even more confused.
"Ah ...... Reiko, explain it to her."
"Yes, Father."
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Reiko, who looked sad because she had no turn to explain, was left to explain, while Jin gave priority to teaching Erza. It's not that he despises Saki. They were glasses for Saki.
"Look, this kind of shape is called meniscus.
"...... got it."
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It seems that the knowledge transfer (transinfo) the other day merely showed that the lenses of glasses are curved.
Nevertheless, Erza seemed to have understood what Jin meant, and immediately fabricated lenses in the same way.
As Jin was watching her, something suddenly occurred to him.
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"Oh, yes. Protective glasses."
Glasses used to protect the eyes from flying chips when working with machine tools such as lathes and milling machines.
Saki, who is trained in alchemy, must have them. Of course, they are also useful for Jin and Erza.
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Leaving the making of glasses for Saki to Erza, Jin decided to make a pair of protective glasses.
The material is the usual white mica. <
"Okay, that's about right."
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It's easy because we don't add any degree of purity. Finally, since white mica is soft, it is hardened (hardening) and toughened (toughening) over and over again.
It is no laughing matter if the protective glasses break and fragments get into your eyes.
Jin makes about ten identical ones.
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Saki has just finished listening to Reiko's explanation and looks at Jin casually.
"...... is. I thought I knew Jin was out of the ordinary, but I guess I'm still a bit naive.
Saki let out a sigh.
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"...... is done."
At about the same time, Erza seems to have finished making the glasses.
"Saki, try them on."
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"Yeah, Erza made these glasses for me. I'm so happy.
Saki puts on the glasses.
"How do you like them?"
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"...... well, I'm sorry, but I think I can see better with the old ones."
Hearing this, Erza's shoulders slumped. Jin encouraged her,
"Erza, glasses can be hard to see if they don't fit your eyes. That's why they need to be fine-tuned.
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"How do you do that?"
Jin asked, not yet having this in his knowledge, he decided to show her how to do it.
He decides to show her how to do it, using Reiko as his assistant.
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Saki, please sit over there. Reiko, please stand in front of her.
"Yes, father."
Reiko sits in front of Saki.
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"Now, Reiko, I want you to check the deviation of the center of Saki's eyes from the center of the lens."
"Okay."
Since the first glasses were made, Jin had been thinking about how to adjust the glasses to suit his eyesight.
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He could have done it himself, but he was embarrassed to stare at the face of a strange woman from the front, so he left it to Reiko.
This time it was more serious than before. Reiko's eyes have been given a number of functions, one of which is precision measurement. One of them is precision measurement. Its performance is comparable to that of Jin, the Magecraft Meister, a magical engineer.
"...... left lens is 5mm down. The right lens seems to be better."
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It is fundamental to minimize the deviation between the center of the lens and the center of the pupil.
"Elsa, let Saki wear the lenses and adjust them."
"Yes."
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Under Jin's guidance, Erza adjusted the lenses, the angle of the frame, and the nose pads.
"How do you like it?"
"Yeah, it's better this time. I can see better now."
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The left and right degrees were set the same as before, so there should be no discomfort.
"Thank you, Elsa."
"Yes."
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"So you don't need your old glasses anymore?"
When Jin said this, Saki denied it in a panic.
"No way. Jin, you made this for me. I'll keep it forever.
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"Oh, I see."
It is a joy for a craftsman to know that his work is cherished by others.
Jin did not say it out loud, but he felt good about Saki saying so.
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