Just do it.

Ye Cheng tied a safety rope to his body and began to climb up.

The cave is full of barbed stalactites, and it is quite difficult to climb up.

Even though Ye Cheng's physical strength is amazing, it is still very difficult. Every time he climbs for a while, he will fix the safety rope.

No matter how good your kung fu is, if you fall from a height of tens of meters, it will definitely not feel good.

After climbing a certain distance, Ye Cheng made a discovery.

Among those stalactites, there is actually a spiraling upward groove hidden.

There is a thick layer of black substance in the groove. This black substance looks sticky and has penetrated into the crevices of the stone.

Ye Cheng sniffed it, the smell was a bit weird, but he recognized what it was.

"Brother, what did you find?" Fatty Wang hurriedly asked loudly when he saw Ye Cheng stop.

Everyone else was waiting curiously.

Rays of light shone upwards, illuminating the surroundings of Yecheng brightly.

Ye Cheng said: "There is kerosene on it, and, judging from the traces, it should be hovering upwards, and it was probably used for lighting during construction!"

In ancient times, there were only two methods of construction in this dark cave.

One is to open holes to bring in the light from the outside, and the second is to use a lot of fire oil to burn to illuminate the surroundings.

The first method is not common, but the second is very common.

Some large imperial mausoleums even built a fire trough around the imperial mausoleum. After being ignited, it can illuminate the entire tomb chamber, making it easier for workers to work day and night.

"Hey, don't look for kerosene, hurry up and look for something related to this mirror!" Fatty Wang shouted!

The others didn't think much of it.

I just thought the kerosene was for lighting.

After all, it is normal to use kerosene for lighting in such a dark cave.

Only Li Duoduo frowned and muttered: "It's strange, if it's only used for lighting, why build a spiral fire path?

Wouldn't it be easier and more convenient to dig a few grooves around? "

But he didn't say anything.

Ye Cheng continued to move upwards.

After climbing nearly 30 meters, he couldn't climb up.

Further up is the limestone, which is sticky and smooth, as long as it goes up, it will fall down in minutes.

Ye Cheng didn't worry about this anymore, and looked towards the middle position.

Looking at it, I immediately found that there was a model of an ancient building hanging upside down in the middle.

The ancient building is exactly the same as the ancient building reflected in the mirror below, but much smaller.

Around the ancient building, there are many mirrors, which reflect the faint light from below and shine on the small model of the ancient building.

"I see!"

Seeing it with his own eyes, Ye Cheng completely understood the principle here.

He looked around, and sure enough, he saw some faint light spots on the surrounding walls. These light spots were not very conspicuous when the flashlight was lit. If he didn't stare at it deliberately, he would not notice it at all.

It was only when he looked in the dark that he could see some clues.

After thinking everything through, Ye Cheng climbed down from the top.

Everyone hurriedly gathered together, "How is it, what's on it?"

"Ms. Ye, what did you find up there?"...

Everyone asked in a hurry.

Ye Cheng replied: "I understand the principle here."

"What's the reason?" The crowd became even more curious, staring at Ye Cheng with longing eyes like curious babies.

Ye Cheng didn't speak in a hurry, but said to the fat man, "Fatty man, go and light that fire pit!"

Ye Cheng knew that the fire was firstly used for lighting, and secondly, it was also used to open the switch leading to the mechanism below, so it must be lit!

Fatty Wang didn't talk nonsense about this matter, "Okay, setting fire, I like Fatty the most!"

With that said, the guy ran over to find the fire trough and lit it directly.

call……

The flames sprang up with a whoosh.

From one point, it circles the entire cave upwards.

Circle after circle, the scene is a bit spectacular.

Everyone looked up at the flames, and their heads were a little dizzy.

When the fire was fully lit, the entire cave was illuminated as bright as day, and the ancient building in the mirror under the water was also illuminated as if it were day.

"It's spectacular."

"Damn, I also want to play with fire, but my mother said that playing with fire will make you pee on the kang, what should I do?"

"The last time our village played with fire like this, and now we are still eating free meals inside."

"Yeah, hurry up and explain the principle, the curious baby is online."

"That's right, let's not say anything, people are dying of anxiety!"

...

The fire dragon soared up and didn't stop until it was near the top, and the flames were burning.

When everyone looked up, they could vaguely see something shining on the top of the cave.

However, it was too far away to see exactly what it was.

"There is really something on it, what exactly is it?" Fatty Wang asked curiously!

Xiao Chen covered his eyes with his hands and narrowed his eyes, but he couldn't see clearly.

"It's too far away, I can't see clearly!"

Only then did Ye Cheng say: "It's a model of an ancient building that fell down.

Dear, this chapter is not finished, there is still the next page ^0^Type, what is reflected in the mirror below is the image of the ancient building model! "

"What, it's that simple?" Fatty Wang was stunned.

The others were also stunned, they didn't expect it to be so simple.

However, Li Duoduo said: "That's not right, if it's just a simple reflection, when we cover some positions, the ancient building below cannot be complete!"

"Yes, yes, that's what I want to say. I was underwater and blocked such a large area, but the reflection of the ancient building is still there. How can this be explained?" Fatty Wang also said!

Everyone also nodded.

If it is really such a simple matter, the ancient building below cannot be so complete.

Everyone understands this basic common sense.

Ye Cheng pointed to the surroundings, "This is actually just a trick. In ancient Persia, there was a little magic. They used a special gemstone to make a mirror. Under the sun, the gemstone would become dull in color, but under the moonlight , the gem will become shiny, this gem is called moon stone!"

"There is such a magical stone?" Fatty Wang was shocked.

No one else has heard of it either.

On the contrary, Li Duoduo exclaimed in surprise: "So that's it, it's the moon stone!"

"What's wrong, sister, have you heard of this kind of moon stone?" Fatty Wang asked!

Li Duoduo nodded vigorously, "When I was in school, I heard about this kind of moonstone. Moonstone is an aluminosilicate of sodium and potassium. The two components are interlayered ores. The two components can scatter visible light. And understand the interference or diffraction of light in the face, and the combined result will produce the moonlight effect!"

Basically no one understands what she said, even Ye Cheng doesn't understand these scientific terms, but I have to say that this girl was definitely a top student when she was in school!

Fatty Wang was even more confused, "Stop, stop, talk in human terms, it's all nonsense, I don't understand Fatty, let's not talk about it being so complicated, just talk about the result?"

Li Duoduo was helpless, and sighed, the sadness of a scumbag.

...

Please remember the first domain name of this book:... :m..

Dear, this chapter is over, I wish you a happy reading! ^0^

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