The fat man is right, at this time, the basic knowledge I learned before is very crucial. Many people, if they don't understand basic physics, tend to only pay attention to how the building appears in the mirror.

But I know that the most bizarre thing about this mirror is not here at all.

Mirrors reflect things, what is needed is a light source, and where there is no light source, the mirror will not have any reflective points.

But the ancient building in the mirror is shrouded in a miserable blue light, which is not our light source, but the light source emitted by the ancient building itself.

The light source comes from inside the mirror.

That is to say, as long as I turn off the flashlight, the only light source in the entire cave is these blue lights, and the blue light will shine through the mirror and make this place blue and faint.

But when we first came in, it was pitch black in the hole. No light emanates from the mirror.

"Turn off the lights." I said to the fat man, and immediately turned off my flashlight.

The whole cave suddenly darkened, and according to normal physical conditions, the blue light in the mirror should be the main light source at this time.

But now the whole mirror went black all at once, and the cave became absolutely dark, only the fluorescent sign on the fat man's flashlight was glowing.

"Smack", the flashlight turns on again.

Looking in the mirror again, it was still the same as we saw it before. The bleak old building is as quiet as a fossil.

The fat man asked me what I was doing, and I told him about my theory. He didn't understand, but he understood the purpose of my experiment, so he said to me: "Just say the conclusion, naïve, don't be polite to an illiterate person like me." ”

This shows that this phenomenon has nothing to do with the propagation of light, as long as the mirror has a light source shining on the mirror surface, it will activate and display the image.

But as far as I know. In ancient China, there was no photosensitive technology.

In ancient China, it was recorded that the mechanism that was opened by light was generally the phototaxis of animals, which was a short-acting mechanism. They are usually handicrafts for amusement. ”

I said, "It's also a shame that ancient China didn't have this technology." Otherwise, in the ancient tomb, you can only fight in the dark, and a little torch will touch the mechanism and destroy it all. ”

"What you say is equivalent to saying nothing." The fat man touched his chin, "Aren't you just telling others, this mirror is awesome, don't you understand what's going on?" ”

"That's different, I'm working backwards from the principle, so that I can save a lot of superfluous thinking directions, you let me think about it. I believe that the great proletarian fighters will not be defeated by strange forces, and that all phenomena have their natural phenomena behind them. ”

I was a little annoyed by what he said, so I told him to stop talking.

"Steal my lines." The fat man muttered, "Yes, you want to, fat man, I'll click one." As he spoke, he shrank down on the beam, lit a cigarette, and smoked it.

I smiled, and finally had the time to take the fat man, and I thought about it and turned my eyes to the mirror again.

To be honest, I do think this mirror is too awesome, but with my knowledge of some ancient Chinese craftsman techniques. This must still be understandable to us.

Some skilled craftsmen in ancient China have reached the point of craftsmanship, but they are still craftsmen. and will not become a real ghost.

Therefore, what our eyes see is often like a miracle, but when it is broken, it is often just the word "blind and clever".

The first thing to consider is what kind of method I would use if I were to make this mirror myself. I slid my flashlight over the mirror.

Looking at the points of those light sources, I suddenly thought of a test method that the teacher said when I was doing experiments before.

A phenomenon must have a beginning and an end. Sometimes the beginning and end of the point itself don't matter. What matters is how the starting point reaches the end. Just watch the changes carefully by constantly changing the parameters. You can know a lot of clues.

At that time, the fat man was able to enter here in that strange stone passage, and he used this method.

I held up the flashlight and started twisting the aperture of the flashlight, we only had two parameters, light and dark, and now I'm going to see how this mirror changes from the brightest to the darkest.

The fat man turned off the flashlight to cooperate with me, I slowly dimmed the flashlight, and I immediately found that the blue light in the entire mirror was also slowly dimming, and the dimming amplitude was exactly the same as the dimming of my flashlight.

I turned on the light source slowly, and the blue light in the mirror slowly brightened.

I couldn't help but wonder, just now the superb judgment of this mirror disappeared, and I immediately said to the fat man: "Look, it's not so magical, the blue light in this mirror is the light source of our flashlight." When our flashlight is on, it will be bright inside, and when our flashlight is dark, it will be dark inside. ”

The fat man also saw clearly on the beam, and nodded: "Can our flashlight shine through this mirror into this building?" ”

I shook my head, although our flashlight is a "wolf's eye", direct lighting can blind people, but it is impossible to use it to illuminate such a large building.

I can't fully speculate on the real situation, but since the problem of light in this mirror is so simple, I don't think the other cases will be too difficult.

My second uncle taught me that everything must be based on the purpose, and that the purpose can infer many aspects that cannot be imagined from the front, which is the most useful sentence I learned from the older generation.

I touched my legs, numb from the cold water, and began to wonder what the purpose of this mirror was here.

"You said that this mirror is placed here, does it have anything to do with feng shui?" I asked the fat man.

The fat man thought for a while and said: "Some Yang house feng shui will use gossip mirrors, but this is also too big, this mirror should be hung on the balcony, can shake the plane down."

You're watching the plane drop from the balcony all day. Today is an Airbus, tomorrow is a wave of sound, how lively. ”

"Jerking off and shaking the plane, you're fucking on the plane, aren't you, we don't have time, think about it seriously."

The fat man finally took a few puffs of cigarette, pinched the butt of the cigarette and threw it into the water, and lit another one: "If I could think of it, I would have thought of it earlier, and then I would have entered the ancient building."

Save the little brother and them all, and now we are already eating roast duck in Beijing at this time, and we are still using it to smoke our butts. Think about it and don't rely on me. ”

"Aren't you a feng shui master? Still ask me? I asked him.

He shook his head: "I must have no problem with this mother's profoundness, not to mention that you didn't understand anything at that time, it's okay for Lao Tzu to talk nonsense, now that you have progressed, I have to carry it around." ”

I said in my heart that I depend, it turns out that you are talking nonsense, the fat man continued: "I think it is useless for you to ponder feng shui, this feng shui, you can understand it at a glance."

If you really want to listen to me, I can tell you that my first reaction at that time was the reflection above, but you look at it. ”

He pointed the "wolf's eye" flashlight at the top of his head. The depth of this cave is very deep, and you can see that there are all rocks on it, but you can't see it clearly.

I took out a cigarette, pulled it over the fat man's cigarette light, and stuffed it back into his head, dangling the fat man's flashlight back and forth above his head.

"It's all stones, there's nothing, so I thought, damn it, this building is in the mirror."

The fat man stepped on the mirror in a few steps, "If the image in this mirror is reflected from there, I will definitely block it if I walk on the mirror." But it didn't.

Compared to your college students, although I don't have much education, I understand the basic truth. ”

I looked at the rock above, and then at the fat man scratching his head in the mirror, back and forth several times, and I felt that what the fat man said was absolutely right, but I felt a strange feeling in my heart.

Maybe it's because I've been around me a lot of deception and design lately, so I have a sensitive intuition about the flaws in many things. It suddenly occurred to me that this hole was not rigorous enough.

It's like a magic trick, and when it comes to magic, the most awesome magic trick is street magic, and he performs in front of you without any disguise.

Magicians often feel like they have special abilities. This is the most powerful.

Then there is stage magic, but many of the most basic parts of stage magic need cloth to cover or use boxes, and its principle is to make others feel that the use of cloth and boxes cannot change the impossibility of this matter.

But because we know that magic is mostly illusions and traps, the wise will immediately know that the strange must be behind the cloth and the chest, but it is cleverly designed and we don't know it.

Now this feeling is the feeling of stage magic, if the design craftsmen here want to sit firmly on the fact that "Zhangjia Ancient Building" is in the mirror.

So, should we look for a cave that is shorter so that we just have to look up? I know that it is impossible to do tricks and feet on the roof of the cave.

But the roof of the cave is too high for some to see clearly, although we basically judge that there is probably nothing on the roof of the cave.

It's just a stone, but the height makes me think that if there was a 1 in 10,000 chance, the mechanism must be hidden on the roof of the cave.

Because the situation around us is too obvious to have any possibility.

That possibility must be in a place we haven't seen yet.

Of course, this may just be my delusion in the moment, if someone tells me that you have to debunk the tricks of the stage magician, or you will lose your friends.

The first thing I had to do, of course, was to kick over the magician's box to see if the strange thing was inside.

"We'll have to climb up there and take a look." I said to the fat man. (To be continued)