"Knead, smack!"

With a sharp whistling sound, I saw a bright line immediately rise in front of me, and then exploded in the air with a snap, and a red flower bloomed.

Well, it's nothing out of the ordinary, it's just a very ordinary fireworks.

However, if someone is interested in watching, you will know that this time the fireworks bomb has obviously risen a lot, and the lines are also much more obvious, and even, the flowers are more realistic.

Well, since there is such a big change, why don't you test it in that room?

Well, this, it's mainly inconspicuous, even if you have a heart, you just see the difference, and you won't think too much, besides, isn't it normal for the Yang family to experiment with new fireworks, and also, that is, this experiment with fireworks can't be kept a secret, so it's naturally very reasonable to set off like this once a night, well, cover up the truth in the truth.

This is just the most obvious plaything tested in the house, well, a technology that is not used temporarily, can only be used as a plaything, but, this outside test, is the most important, well, it is just a storage technology, one is, this propellant, this lift-off is higher than before, and, under the premise that the body of the firework is still smaller, obviously, this propellant has been changed, well, this is a subsidiary technology, or one of the branches of the technology of this firework bomb.

The second is that the fireworks bomb exploded louder in the air, oh, it was more dangerous, so the auxiliary materials of this second item were available again.

And then it's even brighter, it's more beautiful, oh, it seems to be the same effect as the word fireworks, so that's the main technique.

So, this time, Yang Qiao got two more practical technology stores, no, he used them again immediately.

"Lang Jun, we have encountered a problem, and we came to Lang Jun for help."

This is?

There are a lot of people in this family, and Yang Qiao has to slowly think about who this is, oh, it is to build the road, or to open the road, and it is the command to open the way to your new test site.

"What, what kind of problem have you encountered, hasn't this road been opened yet, where has it been?"

"Lang Jun, it's not that the road hasn't been opened, but it's a problem, originally, it's ready to be opened, and the track is ready, once the construction of the railway begins, it will be transported, and the installation will start in turn, but, this, in which mountain, if you encounter trouble, if you can't solve it, you can only change the road, or extend the time."

The conductor said and said, and blushed a little, this, there is a problem that he can't solve, hey, really, I'm embarrassed to see Lang Jun.

Actually, what's embarrassing, in this era, how to open a mountain normally, it's just to build a convenient road, and Yang Qiao's opening is a real mountain, when it comes to soil, digging soil, encountering stones, blowing up stones, oh, this can't be blown up.

"Why, that gunpowder doesn't work!"

"Yes Lang Jun, I don't know why, this stone is very hard, just digging this hole, it is not easy, you can use gunpowder, maybe because this hole is too big, it has no effect on the stone, as a result, every time, the hole will be enlarged."

"It's an encounter, a encounter!"

The words in my head are looking for information again.

"Granite, the hardest one?"

The chatter said uncertainly.

"Perhaps, a good and cheap material of stone slabs in later generations, especially for use in squares, it is excellent."

Yang Qiao studied it in his mind, he didn't hear of this kind of rock here!

"This, it should be a terrain ......, it is a relatively large round stone, it seems that it must be broken through here before it can continue to move forward, otherwise, this stone is also too big."

This is not something that cannot be said, so the chatter directly showed this stone in Yang Qiao's mind, so that Yang Qiao could make a decision.

"So, what about you, first go to the tool shop and get a new drilling tool, this is a new steam-powered air drilling machine, but unfortunately, the hardness of this drill bit is not enough, it needs to be replaced in time, or you also need to use abrasive sand, you just have just made it, you can go and get it, and what, go to the fireworks workshop, go and get a new explosive drug, remember that it is new, write him a note, come, I will sign."

Signature, slip, this is a necessary step to receive some new things, so there must be a slip and Yang Qiao's signature, otherwise, no one else can get it.

"Also, let me tell you about the precautions, what about this stone, slow down and fry it in small batches, don't worry, the blown down stone will be transported to the softest place to pave the roadbed, well, also, when blowing up the stone, pay attention to safety in a section, and the personnel must be evacuated twice as far as the original, otherwise, this is dangerous!"

In fact, this stone is not bad to be a foundation, but unfortunately, well, it is difficult to process, so it can only be used on the spot, as a roadbed, and even, when the stone, it is not successful, to be broken, it needs to be more forceful, isn't it, so, all along, the roadbed of this railway, Yang Qiao is using a softer stone, well, I don't know if it's good or not, this tuberculosis is not calculated, naturally, Yang Qiao doesn't know how to calculate these particularly professional things, but what, this road construction team, It has been open for several years of research work, and this research room will be retained for a long time, just to study some of this kind of professional knowledge, and even, at present, a lot of failure data has been stored, successful, not yet, that is to say, at present, the data in the research room of the road construction team, that is a string of question marks, has not yet solved a problem, in fact, if there is a question mark solved in this problem, the next step should be to find the path.

What about the road, that's it, Yang Qiao doesn't need to care, but he doesn't care, this matter still has to come to him.

"Lang Jun?"

"What, it hasn't worked yet?"

"Yes, yes, but this time, I have a suggestion, I don't know Lang Jun?"

"Well, suggestion, you say!"

"Lang Jun, what about me, I think, this mountain, since it has been opened, I am thinking, or, widen more, you see, Lang Jun, in some places, this railway, under your suggestion, is double-tracked, but what, this double-track, after all, it took a little more effort, especially this one, according to Lang Jun's design, should be very important, so, I think, is it at the beginning of this design, it will take more time to widen the mountain, in order to prepare for the future double-track, there is no need to open the mountain again, according to my investigation, If you open a double track, in the end, it is still indispensable to open the mountain, so this time I will prepare the next one at once! ”

"This!"

Yang Qiao didn't think that every time he saw the railroad in his previous life, why didn't you open the double track, well, at this time, he understood, this double portion, it's not so simple, but this mountain can really be prepared, and besides, this stone also saves the need to transport stones from other places!

"Cheng, since it's open, then, you don't want to leave a double-track place, just widen it again, maybe, there will be an official road here in the future, well, it's good to set aside the place of the official road, but it's okay, this official road, you don't need to leave it too wide, the standard has become, this place, in the future, will be mainly a transportation road, so, these three roads, is enough."

The official road, that is, the road, well, Yang Qiao This is prepared for private cars in the future, whether it is a carriage, or a car that will appear in the future, or even a road for horseback riding, but in addition to transportation, here, there is really not much traffic, so three, well, enough.

"Ask me how the construction of the building materials factory is."

Since it comes to building roads, then, a branch on this road, that is, the adobe factory, also needs to ask, well, once this road is opened, this adobe brick factory will also be used, what is this use, naturally some monitoring posts, Yang Qiao feels that it should be the best to use this adobe brick to build, one is convenient transportation, and the other is protection and safety.

You know, this is an important road, and there are naturally a lot of this sentry box, so this use is also very urgent.