A medium-sized bus was parked outside the hotel.

After putting the luggage in the trunk.

Yan Yongcheng drove everyone along the coast. On the way to the hotel, he introduced:

"...About 270 years ago, during the Edo Kyobo period, it is said that the submarine palace was still above the sea level at that time, and it was not built by aliens. The evidence is that a scimitar named scimitar and a pistol were found in the submarine palace some time ago. Judging from the abbreviations 'm' and 'a' on these two weapons, their owners should be the two female pirates led by Captain Jack Rickman active in 1730, Ann Bonnie and Mary Reid."

"Oh, I seem to have read a similar story when I was a child..."

Mori Kogoro asked suspiciously: "But I remember that the two of them were arrested?"

"That's right, the two of them were imprisoned in the Bahamas prison. Ann, who escaped first, moved the location of the event to the Pacific Ocean. While pretending to be a pirate, she waited for the rumor of Mary's escape..."

Yan Yongcheng said:

"Later, this matter was confirmed, and news spread that the treasure was hidden on this island of the gods."

"So, the silver tableware found in the submarine palace is real?" Mao Lilan asked.

"Maybe..."

Yan Yongcheng'er did not give a definite answer, "After all, everyone spreads it like this, so there should be nothing wrong."

"Then what happened to the underwater palace?"

Mori Kogoro wondered, "Since it was still at sea level 270 years ago, is it sinking now?"

"Yes, you can now look to the left hand side, at 10 o'clock, isn't there an uninhabited island over there?"

Yan Yongcheng continued to introduce:

"It's called Lai Chin Island. Starting from it and continuing to the seabed about 200 meters east, there is a sunken building made of huge stones. About 10 years ago..."

He briefly recalled:

"At that time, it was reported that some diving enthusiasts discovered the topic of historic sites there. Although many scholars came to investigate, there is still no accurate conclusion on whether the building was formed artificially or naturally."

Inconclusive?

Ye Geng let out a soft 'huh':

"It's probably because of the benefits. After all, it's rare to have a hot topic that can be used as an anchor for the development of tourism. Otherwise, I should really doubt whether those scholars and experts who can't even distinguish artificial buildings are liars. Or grave robbers in disguise."

"Well…"

Yan Yongcheng'er's follow-up words were directly choked back, and the corners of his mouth twitched and said truthfully:

"I think so too, but as the head of the tourism department, you have to tell the stories to tourists in a weird way to facilitate publicity, otherwise it will hit our tourism industry hard..."

"So, that submarine palace was a ground structure from the very beginning?"

Mori Kogoro looked through the glass at the uninhabited island with dense trees.

Just at this time, a watch boat crossed their car from one side of the coastline, and the top of the sightseeing boat could be vaguely seen. Three or five men and women were holding cameras and constantly taking pictures of the surrounding scenery.

"There's no sense of mystery at all..." a tool man curled his lips.

"Ahem..."

Yan Yongcheng was obviously the first time to meet such a serious customer, and he did not dare to use the legendary story with a bit of fantasy to make publicity, and continued to introduce:

"The part of Laiqin Island exposed to the sea in the past was much larger than it is now, because of an earthquake 300 years ago, it became what it is now..."

"Is it the ground slip caused by the earthquake?" Conan was curious.

"Uh, yes."

Yan Yongcheng'er was stunned for a moment...it's this kid again, he really knows a lot.

He paused calmly and explained:

"I heard from experts that there seems to be a so-called methane hydrate layer on the seabed nearby. The vibration caused by the earthquake completely decomposed the methane hydrate layer, which caused the surface to slide."

"What is a 'false irrigation hydrate layer'?" Yuan Tai asked with a question mark on his head.

Obviously, the female pirate at the beginning and the mysterious undersea buildings were quite attractive, why did the conversations between the few people become incomprehensible after Brother Gengyi spoke?

Looking around the car, I found that apart from Dr. Ari, Haibara Ai and Conan, the rest of the people, including Mao Lilan and Suzuki Sonoko, were also full of confusion.

Ye Gengyi took the initiative to say:

"Methane hydrate, that is, combustible ice. Its chemical formula is ch4 xh2o. It is a clean energy source, and its main components are methane molecules and water molecules. Its formation is similar to the formation process of submarine oil and natural gas. It is probably buried A large amount of organic matter deep in the seabed stratum is decomposed by anaerobic bacteria in an anoxic environment, and finally forms oil and natural gas. Most of the natural gas is wrapped into water molecules, and forms "combustible ice" under the low temperature and pressure of the seabed ". This is because natural gas has a special property, it and water can crystallize at a temperature of 2-5 degrees Celsius. Because the main component is methane, it is often called "methane hydrate" because it will decompose into Water and methane, so it just takes enough external force to intervene and it will collapse."

"Combustible ice…"

"c...c what 2o?"

"Anaerobic bacteria?"

"Organic..."

"Cryogenic pressure builds up..."

"I still don't understand at all..."

A group of people continued to be blank.

Hehe, I knew it... Conan sweated, and subconsciously said:

"Brother Gengyi's words are too complicated, let me give you a simple example. Have you all played poker?"

Seeing everyone nodding, he continued:

"Suppose we build a triangular castle with playing cards, the water molecules represent the playing cards, and then put methane in the gaps between each playing card, so once the temperature rises or the pressure drops, the structure of the castle will change. It's very unstable, and eventually the whole castle will collapse and release methane gas."

"I see, Conan, you really know a lot, but I always feel that the explanation of the older brother is more professional."

Mitsuhiko sighed with emotion at first, then turned his head to look at Ye Gengyi with the expression of a little fanboy, and said:

"In the future, I will definitely be on par with Brother Gengyi and study this knowledge hard!"

"Well, come on." Ye Geng nodded.

Then become a cadre of the black organization?

Hui Yuan Ai's thoughts wandered a bit, and he coughed hard, reminding some two people in the car to be careful.

"Well…"

Conan came back to his senses, realized Mao Lilan's gaze, and quickly explained: "This... This is what I learned on TV last time."

"Is it a scientific exploration column?" Ye Geng asked.

"Ah? Yes, it should be..." Conan sweated violently.

Could it be that he is going to hit Brother Geng with a gun today? !

"Ahem...you don't usually watch TV at all, do you?" Hui Yuanai couldn't help but expose it.

She didn't want to fight for Conan, after all, the detective's memory of "love to show off" is really only slightly better than that of goldfish.

In this way, before encountering a real danger that is difficult to parry, it is better to ask Brother Geng to teach him a little lesson from time to time...

It's just that it's a bit inappropriate to choose this timing, isn't it?

Mao Lilan is staring at that stupid detective right now!

Haibara Ai is very worried that if Gengichi-san's evil taste is too strong for a while and he can't stop it for a while, causing that guy to show his flaws, in order to make up for the flaws afterwards, he might have to use the antidote of aptx-4869 again to let Kudo Shinichi appear again to resolve it crisis.

And based on past experience, when that time really came, no matter how much you told him in advance, as long as the forgetful detective returned to his original appearance, he would definitely get carried away and make trouble.

In the end, either they were implicated together, or they had to put in effort to help them make up for the loopholes again, so it shouldn't be too much trouble!

Here, Ye Gengyi just said "oh" calmly, and said:

"Oh...that's right, I don't need to learn this kind of basic chemical knowledge from TV."

Um? !

Conan directly misunderstood, and was shocked...Could it be that Genichi-san is testing me? !

Hui Yuan Ai was also taken aback, and quickly raised his head to stare at a certain organization cadre. UU reading www.uukanshu. com

I swear in my heart, is this the legend - as long as I doubt him, I won't be suspected by him?

"but…"

Unmoved, Ye Geng changed his subject and said to the two female high school students:

"Knowledge lies in accumulation, and it's not a bad thing to increase memory. Xiaolan, Yuanzi, what are the scores of the two of you in chemistry? How come you don't even know what methane hydrate is?"

"Ah, this..." The two girls sweated together.

What should I do if my teacher randomly checks my homework when I am traveling...

－－－－－Off Topic－－－－－

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