A rat ......

You can effortlessly drill out of a labyrinth underground, this is a real technology, it is definitely not as simple as drilling into it, the more troublesome thing is how to get the soil out of the hole.

If there is a bored person who has nothing to do, he can go to the wild to catch a mouse and come back, and try to cut the mouse between the nail clippers, and you will find that there is no way to cut it.

There is also the frequency, as far as human beings are concerned, when men do some indescribable actions, the frequency is the fastest, but when the mice are burrowing, the frequency is more than ten times that of humans, and they can make up for it by themselves.

And if the hole is deep, it will involve a problem of transporting soil, so if you place a camera at the mouth of a rat hole, you can find the ability of rats to transport soil, digging with the front foot, sending the back foot, and getting the soil out of the hole little by little.

I sat on the small dirt bag, watching the soil in the hole fly out, the more traditional robbery hole, in fact, is directly with a shovel to dig out of the kind of round robbery hole, the reason why it is dug into a circle, is to make a person easy to turn over, and the circle from the geometry point of view, the amount of soil that needs to be dug out to do this is the smallest.

The smaller the opening of the robbery cave and the rounder the digging, the smaller the amount of work, so the faster it can reach the cemetery, and the more hidden it is.

Therefore, in traditional tomb robbing, if you can dig a very small and round hole, you must be a tomb robber who is skilled in digging holes and has a thin body.

And if it's a team, then this small hole will naturally not work, after all, everyone's body size is different, it can't be all thin, and the large mausoleum is not the kind of grave circle, you can enter it by making a thief hole.

This robbery hole just hit when it was OK, but once it went deep underground, it would be a test of technology, if there is no certain tunnel engineering technology, digging and digging you don't know where to dig, once the direction is wrong, how to dig is in vain.

So if you see that kind of very narrow round thief hole in the wild, you can guess that it was made by a veteran, and the number of people will definitely not exceed three.

However, after the 90s, tomb robbers also began to use high technology, the method is very simple, that is, to use explosives to explode, this is not a simple matter of putting explosives on it, and then pulling a lead out to ignite it, and then exploding with a bang.

This kind of high-tech explosive is high-pressure explosive, which belongs to directional blasting, and when the ordinary explosive explodes, it will only bang and explode around, which belongs to longitudinal blasting, and this explosive developed by tomb robbers is powerful, and it is horizontal!

In other words, it will blow downward, place the explosives in a specific position, and after detonation, the huge pressure will push the soil out of the middle, so that a cylindrical cavity can be formed.

Therefore, tomb robbers can put explosives down again and again, blow up the robbery holes one by one, and easily blow them directly to the sealing layer of the tomb, connect them with wires, and buy a No. 2 battery is enough to detonate it, this thing is simply revolutionary, you can run around Luoyang a few times in the field if you have nothing to do, you can see a lot of this kind of explosion of the thief hole, but don't drill into it, it will kill people.

But after all, it's explosives, the sound of the explosion is not just so simple, it's a little scary, use a shovel to dig a hole in the field, no matter how toss it is, you don't have to worry about someone hearing it, and you don't know what to do at night.

When we were children, the control of gunpowder was not as strict as it is now, so in some remote alleys, gunpowder could be bought, so we could roll the artillery ourselves, first roll up the paper with chopsticks, then seal the bottom with chalk and compact, and then pour gunpowder into it, seal the top, and then lead a twist out.

The thicker the paper roll, the greater the density, the more gunpowder was released, and the greater the power of the cannonball, so I rolled through an arm-thick one, got a half-meter-long twist out, and put the cannonball on top of the empty kennel in the old yard, and then with a bang, the whole kennel was blown up by me!

Then, Mao San beat me up for a week......

Until now, I remember the power of the explosion, like an earthquake, resounding through the world, so this is blown up with explosives to rob the hole, more than ten kilometers away can be heard, and the vibration can be felt in a short distance, so many tomb robbers like to start acting during the New Year, and when every household sets off fireworks and firecrackers, they begin to blow up the robbery hole, so there is a huge cannon sound in the middle of the night during the New Year, and few people will pay attention.

Moreover, after all, it is explosives, and the gas produced by the explosion is poisonous, and the sulfide gathers in the narrow robbery hole, which is difficult to dissipate, and there are many anxious tomb robbers who go down to the hole within a few hours after the explosives are exploded, and the poisonous gas has not yet dissipated at this time, even if they are wearing gas masks, many of them are directly smoked to death in it.

Therefore, there are advantages and disadvantages of using explosives, and the shape of the hole blown up by explosives is neat and regular, just like the standard circle cut out.

The fat man has been rounded and jumped down again, and now the soil thrown from below is very dark, in other words, it is very humid below, and I am also starting to worry a little, after all, it is not a good thing that the soil below is too wet, and the dry tomb can preserve the artifact for a long time, and the tomb with too much moisture, the chemical composition in the air is very corrosive, and many things cannot be preserved.

I walked over and grabbed a handful of the soil next to the cave, and rubbed it in my hand, the soil was slightly cool and moist, so deep that it could not penetrate into the rain yesterday, I looked at the bottomless lake in the distance, I don't know if this soil has something to do with this bottomless lake.

Now there are two possibilities, if the waterproof measures of the ancient tomb below are done well, then we can naturally enter safely, but if the waterproof measures of this tomb are not good, the things inside are estimated to be almost corroded, with the terrain here, it is possible that the whole will be flooded.

The reason why we set the target at Lingfeng Mountain is because the terrain there is higher, but we are sure that there is no ancient tomb there, so we can only find it in the canyon, but I didn't expect the location of the tomb to be really here, as for where it leads, and how large it is, it is unknown.

After all, ancient people didn't know what the earthquake zone was, so if the location of the ancient tomb was built in the earthquake zone like today's tomb, then over time, it is really impossible to figure out where the specific location is.

The fat man went down, and suddenly the speed of the soil below began to accelerate, about another twenty minutes or so, I saw that the soil below began to slowly decrease, and the depth of the entire robbery hole has reached nearly ten meters, at this time the soil, can only be pulled up with a frame, I walked to the edge of the robbery hole, and saw that the fat man had stopped, half squatting inside, and the flashlight had been stuck in the head.

"Fatty, have you arrived?"

(End of chapter)