"But the new explosives are ready?"

The mine owner asked, and Wang Zhe, who was next to Chen Jian, suddenly looked up at Chen Jian, Chen Jian had never told him about explosives, not even the last time he was in the capital. Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

Because of the presence of outsiders, Wang Zhe didn't ask immediately.

Jian Chen shook his head and said, "It's still far from being done, but it's basically okay." However, this explosive is different from the previous one, and I wondered if I should find the master of the explosives mine first and figure out how to blow it up together. ”

He is not modest either, and there is still a long way to go from practicality.

Glycerin explosives are very good civilian explosives, but they are not very good military explosives, and they basically cannot be used as propellants, at most they can make a grenade explosive package or something.

The sensitivity is too high, and the normal oil is not passivated and adsorbed, and whoever uses it will die.

Normally, this thing is not qualified as underground explosives in coal mines, and it is strictly forbidden to use it under perfect safety regulations, and it can only be used in open spaces. But as far as today's safety regulations are concerned, dead people are not a problem, and it will be decades before safety regulations are fought.

After adsorption with diatomaceous earth, the proportion is appropriate to prevent the glycerin explosives from seeping out, and then wrap it in oil-soaked paper, which is much safer.

But after security, new problems have arisen that are difficult to detonate.

Most industrial explosives cannot be blown up by fire, and can only be detonated by a shock wave or an instantaneous huge pressure by the initiating charge.

Black powder is not good, use black powder mixed with diatomaceous earth and glycerin explosives, after the explosion is basically just black powder exploded, and it is unlikely that the glycerin explosives will explode.

Another kind of gunpowder that seems possible today is fire cotton, but it can't make strong cotton at the current level, and weak cotton can be used as a rubber strip to adsorb glycerin explosives and make explosive glue, which is stronger than diatomaceous earth adsorption, but the production process is somewhat dangerous and complicated.

Since it is a blast mine and not a military one, diatomaceous earth glycerin is available. If you want to detonate, you can only use mercury thunderate as an initiating agent.

Making mercury thunderate would have been difficult a year ago, even with sulfuric acid, nitric acid, alcohol and mercury.

But now the difficulty has dropped because of the advent of the simple thermometer. The reading is still touching, and the error can reach about three or five degrees in the range of 100 degrees.

The ice-water mixture is used as a ruler, the person's armpit body temperature is then made a ruler, the boiling water is a ruler, and the same amount of ice-water mixture and the same amount of boiling water are mixed in a cotton insulation porcelain pot to make a ruler, and the key is to mark the scale of about 50 degrees clearly.

That said, today's thermometer readings are uneven and each thermometer has a different scale, but the scale can be drawn in the opposite direction by the known temperature...... It is equivalent to shooting first and then drawing the target, but a few important numbers of marks can be roughly determined.

The magic of this thermometer is that some of the scales are roughly accurate, but the distance between the scales can be long and short.

The azeotropic method produces volatile acid, nitric acid and mercury at a certain temperature, and then adds alcohol to control the temperature that can be measured by a thermometer, and a small amount of mercury thunderate can be prepared.

After adding a passivating agent, the mercury is not so easy to explode, rolled into a cylinder the size of a three-year-old child, and inserted into the glycerin explosive as an initiating agent.

The initiator only plays a detonating role, and this thing is not needed to be used as explosives, which is very dangerous, and it is common to blow up fingers if it is commonly used.

The lead azide initiator can be made in the laboratory at any cost, but it is too expensive, the power of the hand-cranked simple generator is small, and the sodium price obtained by the stack method is higher than gold, not to mention the impossible procedure of making nitrogen to produce sodium azide by the soil method.

This can be sorted out and sent to the gentleman in the north to play, Chen Jian estimates that Mr. Mu is now also working on the passivation and moisture-proof of sodium nitrate saltpeter, which is the explosives industry, and the old gentleman will like it.

As for the mines, quarries and other places here, it can only be said that Chen Jian's fate is not his own, and he can generously use the words "almost" and "make do".

With mine picks, safety lights, mine carts, wooden tracks, detonators, and explosives, Chen Jian felt that the image of Chinese miners in the future would be full to the era of the industrial revolution.

If you don't agree with each other, you will tie the explosive paper tube all over your body, but don't forget to insert a detonator, otherwise it will not be easy to explode; Either run to the river to fry fish in your spare time; There are often old miners who have missing a few fingers wandering around the mining area; Hiding in the mountains to avoid gunmen hired by mine owners, striking to fight for rights; said that the brother and sister were used to fight with the mine next door; I heard that where there was gold for sale, everything flocked to it...... Such an image will become more and more plump, only the lack of tobacco.

Seeing that the miners and the explosives master had come, Chen Jian carefully took out the uncombined explosives from the saddle bag of the horse he was following and put them aside, startling the mine owner.

He knew the power of the oil explosive, and although the rolls of explosives looked like a large firecracker, he knew that the power of this thing was much greater than that of a firecracker of the same size.

invited the bombing master and introduced it, and Jian Chen politely called him a few times. The bomber master also knew that these tracks, miners' lights, etc. were related to Chen Jian, which was also polite.

Looking at a few paper tubes on the ground, the explosive master asked, "This is the new explosive?" ”

After seeing many strange things sent by Jian Chen, he did not doubt the power of this explosive, but only out of emotion.

Chen Jian found a chisel and hammer, found a stone wall near the mining area, and found a support point that may not be correct by feeling.

A pit was dug with a chisel, the safety explosives adsorbed by diatomaceous earth were inserted into it, a detonator was inserted, and the fuse was tied.

The crowd retreated far back, and the miners also had the heart to see the excitement, so they all gathered around.

Jian Chen found a broken iron pot and buckled it on his head, shouted for others to step back, and lit the slow-burning rope tied to the fuse.

After waiting for a long time, there was a bang.

This time there was no thick green smoke of black powder, only flying stones, gravel, and dust.

The strong explosion combined with the right support points triggered a perfect consequence, and a large piece of stone was blown down from the stone wall, and there was a rumbling sound.

Several blasters ran over to check, thinking about the size of the explosive just now, and were amazed.

The mine owner didn't look at it, but he also knew that he really needed this explosive, if it was not very expensive, it was three or five times stronger than black powder.

More importantly, in this way, the position of the explosion is easier to control, and there will be no accidents that cause collapse due to too much discharge.

Wang Zhe nodded secretly, and said in his heart that this explosive is really a good thing, and it would be good if it could be stuffed into the cannon.

But after thinking about it, this thing is useful to the military Chen Jian wouldn't not know, but he didn't mention it at all last time, could it be that it is not realistic for this thing to be stuffed into a cannon? After all, Jian Chen is still the gentleman of the Academy, and at this point, Wang Zhe still feels that Jian Chen must have his own reasons.

After a few bombing masters ran back, they praised Jian Chen again and again without waiting for Jian Chen to ask.

"This stuff is really good. It's fierce enough. ”

"Good stuff!"

Chen Jian smiled, knowing in his heart that not only can the explosives in regular coal mines not use glycerin, but also need electricity to ignite the detonation, at this time, there is no such condition, so he can only smile hard to show that this is indeed a good thing.

"Ladies and gentlemen, bombing is a university question. Some skills, I'm afraid that the gentleman of the school palace is not as good as you, this is the realm of decades of hand-eye and heart-eye integration. Where to dig pits, where to bury artillery, how not to collapse...... These things are not something that can be learned in a day or two. ”

"To be honest, miners can be replaced, but a veteran blaster can't be replaced at will."

Touting it, these bombing masters are also quite complacent. How to say that Jian Chen still has the identity of Mr. Xuegong, the same praise comes from different people, and the effect is very different.

The mine owner also echoed a few words, and Chen Jian said: "These explosives still need to be improved, and it is estimated that it will take more than half a year." But this explosive is different from the previous gunpowder, how powerful is it? How much is the charge? How to detonate? These are the problems that the mine bomber needs to study carefully. And how to fry? How to dig? These things are still the experience that your masters have passed down from their ancestors. ”

"In this way, since there is still half a year to go, why don't you come to Nan'an with the two masters with the highest skills, and let's figure out how to use this explosive together?"

Jian Chen understands that some of the skills of explosives will not be easily taught by these masters. Before the introduction of theoretical calculations in structural forces and explosives, these masters had already summed up a set of skills that were easily passed on to the outside world as a capital to establish themselves and be respected.

To a certain extent, there is no resentment of these old craftsmen, charcoal-burning ceramics and dyeing cloth and other industries, and there are often things that happen when the owner throws skills, and throws people away after stealing.

The front told the master to get out of the way, and over time, the craftsman also figured out the ability to make a living in the cruel class struggle.

The role of science is to make all seemingly mysterious techniques unfold with formulas and principles. Things like thermometers and meters can make a lot of people lose their jobs, but they also make the learning process easy and can be done in batches.

Today's mechanical foundation is not enough to support blasting and structural force analysis, so Chen Jian had to hire some masters to justifiably "steal teachers".

The mine owner didn't expect Jian Chen's thoughts to be so dirty, so he didn't think much about it, so he said: "Since this is the case, then I will choose the two masters with the best craftsmanship on my side." But masters, let's talk about it, and we'll come back after figuring it out. After so many years of friendship, I won't say much else. In this way, I will pay for the food and clothing, but we will also be villains before gentlemen, and if we don't come back after completing our studies, we will have to compensate some money. I can trust the two masters, but now it's like this, it's better to go through the form. ”

The two masters also understand that after working here all their lives, they still have feelings. I signed the contract happily, but I made up my mind: only learn and talk less.