The Demon King Seems to Conquer the World

The three of us, who left Dr. Etha's room, headed to the headquarters in front of the separate mansion.

"You didn't know what the ritual was about."

I just walked into HQ and as I recall, Harrol said:

"Is there such a stupid thing? Who would do anything to save your teacher's life?"

No, really.

……

"At best, you say it beforehand when you betray me. It's possible I can help the teacher."

Well, if Harrol betrayed you, it's probably hard for Dr. Etha to figure it out before me, so I guess it's okay.

"How can I help you?"

"I hire people to keep me under surveillance at 46: 00, and if it looks like we're going into the woods, I'll detain them. But... in that case, we'll have to force them to eat things."

I thought that only in Dr. Etha's case could he really go on a hunger strike and die.

In that case, if you let him drink something like porridge even while he's asleep, he wouldn't be willing to try it from Dr. Etha, but he would be able to help.

"... Ugh"

"Even if you survive, it's probably dark for the rest of your life because Dr. Etha gets so dirty that the artifact can't be saved. You can abandon your faith, but you won't."

If you are as religious as Dr. Etha, you are unlikely to be able to save your mind.

"Damn, why did you get your teacher involved?"

I seem to regret something.

"Well, all you have to do is live up to your contract. If you're anxious, you can fuck your ass up now."

"Can you do that? Dr. Etha."

"The vows we exchanged there would be about navigation in the first place. It is natural to assume that if an oath is viewed as a contract, it will enter into force from the time of teaching navigation. If I didn't teach you how to navigate, the context itself would be meaningless, even though it wouldn't have meant that there were no vows. If you're going to be an asshole, I'm going to go to Dr. Etha's and I'm still anxious, so I decided not to teach Harrol. I'll tell you what. Well, there's nothing wrong with that."

That should convince Dr. Etha for sure.

There's nothing wrong with that.

Dr. Etha's assessment of me may fall, but I don't care about that.

"Oh well..."

"Do you want to stop?

Neither do I. I don't want to teach the kind of guy who gets his ass all over here.

"No... I'm the man to do it if I do it"

They'll do it.

"I was relieved to hear that. Then let's go."

I climbed the HQ stairs and went upstairs.

When I opened the door, there was a round table inside.

This is the room we use as a meeting room.

The quality is poor, but the blackboard is also installed.

My Itoko slept on the round table, sitting in a chair.

Sham.

In all likelihood, a woman with big tits glasses is still sitting there.

This is Lily, who has finally completed her satisfactory glasses.

Mr. Lily, unlike Itko, was awake perfectly.

"Sorry to bother you ~"

And I said with ease.

"Sorry to keep you busy."

I keep my head down with dust.

I was the one who called the two of you.

"Yeah, yeah, yeah."

"These are the sailors. This is Harrol and this is Gola."

I briefly introduced you both.

"Oh yeah... I thought I could understand what you taught me. Yeah, but"

"Harrol may not be able to do better, because I hope one of them understands"

"If I didn't understand, I'd die. I don't want you to understand."

It really is.

"Well, you ladies..."

Harrol asked.

"Those are the people who made me tools about astronomical navigation. It's my Itoko sham sleeping there, and the other one's the company's chief engineer, Mr. Lily."

"Regards"

Gora bowed her head.

"When you look at it, Harrol over there is the captain, and Gora is the navigator."

……

When I keep my mouth shut,

"Yes, I'm the navigator."

And, Gora made her own name.

"Hmm."

Mr. Lily stares at Gola.

"Oh, um...?

"Hey, I thought it was such a young boy to entrust me with the greatest masterpiece I've ever put on hand salt like my child..."

I said worryingly.

There are two boxes in front of Mr. Lily that have as much as a hug.

This is a large watch called a chronometer.

A chronometer is a clock that functions as a precision clock, but at the same time has elaborate impact resistance and ideas for eliminating the effects of changing attitudes due to waves.

This means a watch that works extremely accurately, even on a ship that always rocks so fucked up.

It's easy to say, but making such a watch seemed to require a variety of ideas and new inventions, and in developing it, Ms. Lily patented some.

Originally, a mechanical clock in this country was made on the assumption that it would be clocked frequently with a pendulum clock or a day clock, the more accurate, of course, the better, but more emphasis was placed on portability than that.

Of course, in the case of chronometers, that's not how it works.

Rather, the opposite is true, with more emphasis on precision than portable performance.

We must sail for more than a month without clocking anywhere while we are in line with Sibyak Standard Time, and when we get back to Sibyak, we must have a perfect clock.

It's a machine that requires such performance, so I wouldn't say error within a minute in a year, etc., but if you don't clock it in a month, the half day clock goes crazy. In something like that, I don't use it at all.

Lily also flew a horse to her parents' house to talk to her about it, as the equipment in the dorm was not at all sufficient to develop this.

Lily's greatest masterpiece is no exaggeration or anything.

"Are you worried?"

Gora said.

"I ask the other way around, aren't you worried about handling this? I know the clock is a fragile machine. Yuri used hundreds of gold coins to make one of these."

"Hundreds..."

Gora said in dismay.

A hundred pieces of gold is not the amount that a sailor in that corner can get.

Even so, Lily offered it at employee prices.

Suppose they were put up for sale under the Amien stamp, two hundred could have been taken.

There are two of them here because they assume that if they break, they assume that they will be used in a set of two.

The machine clock produces terrible errors or breaks just by neglecting one place of oil sauce.

If it occurs at sea, it will be shipwrecked in one shot, and the ship will leave the crew on the algae chips of the sea.

That's a problem, so given the human error, we needed to have two sets in order to lower the accident rate.

Because of the mass-production effect, you simply can't double the price, but it is expensive to buy it.

Apart from that, I need a watch for everyday use, so I have a pocket watch that is quite accurate.

Chronometers are not carried, so if possible, they should be installed in the centre of gravity of the ship.

What you actually use when you observe is a pocket watch.

Pocket watches are clocked daily with a chronometer.

About 300 gold coins, including a sextant and a sailing yearbook made by Sham?

It's not an easy amount to process for Howe.

The cuff is left with a sinister face, and the accountant's bule is making his eyes black and white.

If you fund buying a ship with this, all the money you've made from your efforts since its inception will be blown away.

That's what I'm worried about, because I'm going to leave it with this Harrol.

"Of course, I'm not asking you to understand the structure inside, but seriously, don't remember. I'm in trouble."

"Yes, I'll take it seriously"

"Okay, well, explain it from the concept"

The explanation began.

Sham was asleep.

"... so. Speaking of principle, why don't we do a simple story?

Ms Lilly's lecture is over.

Ms Lilly stands up and has balls made of wood.

This represents the planet.

"... uh, also... no, no"

Harrol was about to tell me to stop.

"What. If you have a question, it's clear."

"No, I couldn't figure it out while I was thinking about it."

This guy doesn't seem to work.

"What about Gora?

and spoke to Gora.

"... you may need to sort your head out a little bit, but the rough part is"

I see.

I know you've got the edge, but that's far too much.

In the first place, these guys should be the first to hear a geographic theory here.

If I get right into my head with Ston, that's what creeps me out.

"This means that there is always only one point on Earth where the sun rises south at the same time and at the same angle."

I summed it up succinctly.

If this is also used in the Sun Calendar, it can be troublesome again, but the Shans use the Sun Calendar, so it helps.

"I'm not a scholar, that's all I need to understand. If you can use it as a tool, that's enough. But if you don't have the knowledge, even if you use it, your head will be upset."

"Yes."

Honest.

"And I'll add to Lily's explanation. The compass is somewhat suspicious."

"Do you want a compass?

"Compass doesn't technically mean north. Have you ever wondered why the compass turns north?"

"Come on?"

Well, I guess so.

Thinking about it doesn't make sense.

"That's all over the planet, invisible... flushed by something like a stream of power, pointing north. The flow should be considered to be uneunevenly serpentine. Of course, serpentine may refer to Tamatama North depending on the location, or, for example, how different the flow is at the edge and edge of the king's capital. But if you stay away from Shibhak and Karakumo, it's gonna change a little bit."

"... I'm not sure. What does that mean?"

"Sure, if you're going to sail by survey like you've done before, it's irrelevant. For example, you want to move from here to here."

I pointed to two separate points on my desk with my fingers on both hands.

"From here to here, let's say it's about twice as far from the Suomi seaport you guys always use to the Issa Isle. Both ports know latitude and longitude because they have both been there once and have been observed. Assuming it's all Kaihara on the road, of course you want to go straight."

I moved one finger in a straight line and stuck it to the other.

Shortest distance.

"But when you rely only on an azimuthal magnetic needle, the orientation of the needle is subtly uneven, and it's changing, so this is how it moves."

I push one finger straight as I subtly change the angle and bring it closer to the other.

The two fingers do not overlap and are different in the distance.

"This way, you guys don't get to your destination. So every day while the sun is out on an actual voyage, we need to make observations and modify our position. Well, this is the ideal way to observe the sun only because you only have one chance to observe it once a day"

Now I move fine into a zigzag, but with my two fingers together.

"Well, on an actual voyage, you wouldn't have to worry about it like this, because if you hit it across the street, you'd have to repeat your tucking, so you'd have to observe it every day."

To sail forward against the other wind, you have to move diagonally back to the zigzag with the wind.

This is called tucking.

It's a term of foundation in the basics for these guys, so of course you'll understand.

When I do the tucking, I don't know in which direction how much I've moved.

"Anyway, the azimuthal magnetic needle is meant to be approximate. Count on the observations."

"Yes, I understand."

"The flow of force that moves the azimuthal magnetic needle doesn't change that much over time. If you write down how many azimuthal magnetic needle errors there are on the map, you'll know how many of them are region-specific. Then, if you subtract the error from the direction of the azimuthal magnetic needle, you will know the exact direction"

"But if an azimuthal magnetic needle is unreliable, what should the orientation be based on?

Based on what?

If you're a sailor, isn't that common sense?

"That's the same now and ever. It's the North Star."

"Oh, I see"

He knew just about the North Star.

"The North Star is always north. What Lily just told you, you can see why the North Star is directly north. It doesn't work because it's directly north, and there's no more standard to be sure."

"Okay."

"We're just finishing Dr. Yuri's lecture, let's actually do some practice"

said Ms Lilly.

The practice of sitting in a fixed chair in the room, looking horizontally at the rope stretched beside the wall of the room, and looking at the circle of paper on the ceiling to the sun continued until the sun went down.