When everyone entered the house, Xiao Lei talked about what happened just now.

It turned out that when Xiao Lei stood at the entrance of the cave to observe, suddenly, he suddenly found that the watch on his wrist suddenly flashed red, and he was taken aback - because he was not wearing an ordinary watch, but a military watch, which had many amazing functions, and one of the functions was the detection function of infrasound.

It turns out that there are many sound wave frequencies that humans can't hear, while many animals can; The reason why this kind of military watch is equipped with this function is that it is useful in special combat situations, such as reconnaissance behind enemy lines, or jungle warfare.

For example, when scouting behind enemy lines, the enemy often uses this infrasonic whistle to command military dogs, or uses this infrasonic whistle to summon carrier pigeons.

This kind of sound cannot be heard by people, but with this kind of watch, it can be detected -- once there are infrasound waves around, the dial of this kind of watch will emit a faint red light, so that the combatants can respond in time.

Speaking of this kind of infrasound, I immediately thought: When Xiao Lei used to deal with that kind of half-sheep and half-human beast in the past, didn't he use this kind of infrasonic whistle? In addition, this kind of infrasonic whistle has a certain impact even on the blind and those freaks, so Xiao Lei is very familiar with the role of this infrasonic whistle.

Therefore, when the dial of the watch flashed red light, Xiao Lei almost instantly thought - this infrasonic whistle may have come from the hole, and it is very likely to attract two "monkey eagles" into it, this idea flashed in his mind at the moment, Xiao Lei quickly blocked the hole with his backpack, for Xiao Lei's reaction speed, we have learned more than once, it is his extraordinary reaction speed, the two "monkey eagles" were not lured into the hole.

After listening to Xiao Lei's words, we were speechless for a long time in shock.

I really can't imagine that there is a mysterious cave under the crater, and what is even more incredible is that there is a person inside, and that person actually knows how to lure the "monkey eagle", and his understanding of the "monkey eagle" is better than all of us.

"Could the person who blew the whistle in the cave be Zhu Leting?" The female translator asked, looking at her cousin and Maniac Six.

She knew that for this kind of question, I am afraid that only the madman Six and her cousin could answer her.

Madman Six lowered his head in contemplation and ignored the female translator's question, while his cousin said to the female translator gently: "This is still uncertain, but there are more and more signs that the Ming Dynasty vassal king Zhu Leting may indeed be alive." "Isn't that just like the tall blind man, who has lived for more than three hundred years, and is almost a contemporary of the tall blind man." Sister Li said in surprise, and Kenya next to her, as well as Mr. and Mrs. Chen, were also shocked. "Researcher Wang, are there many relevant records about that meteorite in history? Especially mentioning that the meteorite has a magical function or something? ”

Crazy Six suddenly asked his cousin.

My cousin pondered for a moment and said, "Although there are not too many records in this regard, there are still some, I understand what you mean, you want to know whether that meteorite has a longevity function, right?" ”

Maniac Six smiled and nodded, "Well, yes, that's what I mean, because those six words 'no life and no death' make people feel as if they are saying, as soon as you enter that pit, time will stop, and people can't help but think that there will be some connection with 'immortality'." ”

But to our surprise, my cousin shook his head and said, "This is not yet certain, because the six words projected on the stone are very strange, for example, they are horizontally, you know, the ancients rarely arranged horizontally, generally vertically, even if they are horizontally, they are generally read from right to left, and rarely from left to right, but if it is 'a place without life and no death', it is read from the right to the left, so it is more smooth to read, although if you read it from left to right, the meaning is reasonable, but I always feel a little awkward, It's also a bit unnatural, not the usual way of textual expression.

Therefore, although these six characters are all traditional characters, are they made by ancient people or by modern people?

These are doubts, but these doubts may not be right, because the use of projection to present the words on the stone, after all, is very different from writing directly, maybe this horizontal row and vertical row compared to, the operation is easier to achieve, so the horizontal row is used, which is also possible.

But what I have always wondered is -- not just me, but the whole academic community -- why do such words have to be presented in such a bizarre way as a solar projection? And it only appears at noon, and it appears for less than a minute, why is this? ”

Yes, it's incredible to present words on stone in this way, but what is the purpose of doing this?

Madman Six suddenly stood up, put his hands behind his back, and paced quickly in the room, muttering as he went: "Appear at noon, at noon, how can you only appear at noon?" He kept patting his head with his hand, as if he had thought of clues, but it was still not too clear.

Suddenly, Madman Six stopped and said excitedly, "I seem to know what's going on." ”

Hearing Madman Six say this, even his cousin, who had always been calm and composed, stood up excitedly and hurriedly asked, "What's the matter?" Tell me about it. ”

The rest of us were even more excited, and they all stared at Madman Six in a daze, waiting for him to uncover this incomparably strange secret.

"Actually, the six words you see are not projections at all!"

As soon as Crazy Six said this, everyone was stunned, and they didn't know what to say for a while, could it be that Crazy Six was joking? But looking at his expression, it really doesn't look like it, and Crazy Six rarely jokes.

"Are you mistaken, why isn't that a projection? Brother Wang, Brother Ouyang, and my wife and I have all seen it with our own eyes, and the shape of those six words has changed slightly with the change of the angle of the sun, and in less than a minute, those six words have disappeared, how is it not a shadow? ”

Mr. Chen was the first to question.

Madman Six calmed down a lot at this time, he sat down in a chair, picked up tea from the table, took a sip, and then said unhurriedly: "In that case, do you have your hands or bodies covering the top of those six characters to block the sunlight?" If those six words are really the angular projection of the stone above, as soon as you block it, those six words will definitely disappear, have you tried this? ”

"That's not true, those six words appeared in such a short time, and they appeared so strangely, we were stunned when we saw them, how could we think of testing them in this way? But if those six words are not projections, what would they be? "Mr. Chen still has a hard time believing the words of the madman six.

The cousin also calmed down at this time, and he asked the madman six softly: "Senior, if those six words are not projections?" How did it come to be? Is there some mystery in this? ”

My cousin knows Crazy Six very well, and he knows that Crazy Six's attainments in meridians and many other aspects are by no means comparable to ordinary people, and since Crazy Six said so, he must have his reasons. ”

Madman Six thought for a moment, and did not answer his cousin directly, but asked instructively: "Have you noticed that the stone projected by the word is exactly the same color as the ordinary stone, which is the kind of stone blue, while the other stones in the crater are all red, but the stone that is projected is not." ”

After being reminded by Madman Six, we immediately realized that it was indeed the case, and that the stone was indeed stone blue, which was completely different from the other red stones in the pit.

"What's so strange about that? That stone, it must be a stone outside the crater, for some reason, it was just moved into that crater, and outside the crater, there are all this kind of stones. ”

Regarding the discovery of the madman six, Sister Li was very unimpressed.

The madman smiled indifferently and continued: "You girl, you still didn't observe carefully enough, didn't you notice? The stone and the red stone in the pit are combined, and the lower third of the stone is red, and the upper two-thirds is the stone blue of the ordinary stone, and if the upper stone is removed, I am afraid this situation will not appear."

Hongmei, who had never spoken, heard Maniac Six say this, and also retorted: "Senior, you definitely don't know much about physics, in physics textbooks, there is an example - two different metal blocks are pressed together, and after a long enough time, the parts of the two metal blocks in contact are combined together, and the structure of the combined parts also penetrates into each other, which is a common physical phenomenon." ”

Madman Six shook his head and said, "I know the kind of physical phenomenon you mentioned, but that stone has nothing to do with this interpenetrating physical phenomenon at all. Let's put it this way, the cyan stone you see is not actually a stone, but a special crystal, and the phenomenon you are talking about does not usually happen among the stones in the wild. ”

A kind of crystal?

Maniac Six then explained: "This crystal, at first glance, looks very similar to the color and texture of ordinary stones, but if you look closely, you will find that it is very different.

As you all know, many of the patients who come to me are very wealthy people, one of them is a mining tycoon, but that person is very different from the general nouveau riche who is interested in mining, he used to be a professor at the Institute of Minerals, and later went to the sea to do business, but in his spare time, he still likes to study all kinds of ores, and his knowledge is very extensive and elegant, so we talked very speculatively, and became good friends.

Once, when he showed me a stone, which looked like a very ordinary stone, the size of a goldfish bowl, I was very strange at the time, and I did not know what was so special about this ordinary stone, and just as I was puzzled, suddenly he reminded me to look at the stone, which was about noon, and the season was about the same as it is now, and something shocked me to happen:

In the sunlight, there was a time display on the stone, and the display, like the electronic watch we saw, I was very surprised at the time, thinking that he was doing magic, but soon, the time display on the stone disappeared.

The professor of minerals told me that this thing that looks like a stone is actually a kind of crystal, which can be written on it in a special way, and under the illumination of sunlight at a certain angle, the words written on it will be displayed, which is a bit similar to the principle of an electronic display screen, which is a physical phenomenon produced by light shining on the crystal, or in other words, the principle of displaying the time in an electronic watch is the same. ”