Yang Xu is in a very good mood and devotes himself to the work of the salt factory day after day with passion.

Sometimes he also thinks that he can earn an immortal title by refining mineral salt, so if he gets the black powder out, builds a few cannons, and directly overthrows the northern Turks, then he can't pay homage to the marquis on the spot and give it to the descendants to earn back a hereditary heirloom title?

Good fellow, hereditary titles!

As long as the Great Zhou Dynasty is still there, and no one of his descendants will die and rebel, then having a hereditary title is equivalent to solving the wealth of several generations in one generation!

Although Yang Xu can't guarantee whether his descendants will be angry, in his generation, as long as it is the benefits that he can win, he will definitely not give up!

Perhaps it is precisely because of the influence of his lonely life in his previous life that the family concept in his heart is stronger than that of ordinary people!

Now that you have an idea, you can do it.

In the following days, Yang Xu was busy with the work in the salt factory, and at the same time, he asked the subordinate sergeants in the salt factory to collect all kinds of materials needed to make gunpowder for him.

In fact, the materials used to make black powder are simple, but sulfur, saltpeter and charcoal.

It's just that there is a little difficulty in the proportion, Yang Xu only remembers that it seems to be 15 parts saltpeter, 3 parts charcoal and 2 parts sulfur to match.

But he didn't know what level of purity these raw materials needed to be.

However, this is not difficult for him, since the purity of raw materials is unknown, there are certain factors that affect the ratio, so simply use experiments to get an accurate ratio plan!

So when all the materials were sent to the salt field, Yang Xu began his black powder research and development plan!

The salt works are surrounded by three military camps, and on the vacant side is a large mountain, and a large part of the salt works is empty on the side of the mountain, except for part of the mining operations.

This area happens to have a water source, which can be used for black powder tests!

Yang Xu called Jin Peng, the general in charge of maintaining order in the salt farm, and transferred more than 100 sergeants to build a simple firewall around this area.

Then a ditch more than half a meter deep was dug around the firewall, and after the ditch was dug, the water source on the side was introduced into it, forming a fire zone similar to a moat.

After all this is done, a simple hazardous explosion test site is basically completed!

Yang Xu asked the sergeants to carry all the charcoal saltpeter and other materials purchased into the test site and stack them separately.

After all, these things are dangerous goods in his eyes, and this time he has purchased thousands of catties of everything, and he doesn't want to blow up the entire salt field without paying attention.

Once everything was ready, the trial began quickly.

Yang Xu first conducted a small-dose test according to the ratio scheme in his memory, and found that although it could be burned normally after ignition, the combustion effect was not rapid, and it was not even as good as the fairy stick played by the children in the previous life.

Yang Xu hesitated: "Is it really that the purity of the material is not enough?" ”

So he began to go through chemical tests again and again, repeatedly checking the purity of several materials on his hands.

In the end, it was concluded that there seemed to be no problem with the purity of the material!

It seems that there should be a problem with the proportion!

Yang Xu was completely immersed in it, and he was stuck in the test site for several days in a row, and even the daily official documents of the salt field had to be sent inside by the sergeant for him to sign.

Jin Peng found that Yang Xu's gray-faced cat was writing and drawing in the test field every day, and then he made a whole bag of things that he didn't know what was inside, lit a fire, and smoked... Then I just continued to crouch on the ground and draw talismans, and then talk to myself.

Jin Peng was almost stunned: "This Yang Supervisor is not stunned, right?" Or is he learning from the Taoist priest of alchemy... Playing Xiuxian? ”

Jin Peng frowned, with a worried look on his face, and hurriedly found an opportunity to enter the city and report to Su Xiu what happened in the salt farm.

Sure enough, as soon as Su Xiu heard this, he didn't even put down the big knife he was practicing, so he rushed to the salt field in a hurry, and rushed all the way into the experimental field where Yang Xu was "cultivating immortals"!

Of course, Jin Peng didn't dare to follow up.

Because he has heard since he was a child that the "cultivation of immortals" is quite evil, there are a lot of taboos, and some people come up to watch because the eight characters are not hard enough, and as a result, they commit taboos, resulting in flying disasters, family ruin, and death.

Of course, a large part of the plot was told by the storyteller when he visited the Qinglou.

However, it is better to believe it than to believe it!

After all, the gods and ghosts are a little bit evil!

He Jin Peng is not stupid, he came from a humble background since he was a child, inherited his father's position, and finally worked from a small flag to the thousand general manager who guarded the city gate, and now he has finally transferred to the bonus unit of the salt field to be on duty, seeing that he will be promoted next year, how dare he joke about this thing?

Jin Peng pressed the knife and stared at the gate of the test site with a solemn face.

Who knows, Su Xiu went in for a while, but he didn't see him come out!

Jin Peng was a little anxious, and was thinking about whether to shout two sentences inside, after all, he called the person, in case something happened, he couldn't afford it!

I'm about to speak.

Unexpectedly, suddenly there was a hearty burst of laughter with a hint of smugness, and I saw Su Xiu happily riding out again.

Jin Peng was completely stunned and wanted to step forward and ask a few questions.

As a result, Su Xiu didn't give him a chance to speak at all, but just pointed to the gate of the test site with a serious face and said: "Quickly go and send more sergeants, be sure to guard this place strictly, and no one is allowed to approach!" ”

After dropping these words, Su Xiu laughed and slapped his horse away.

Jin Peng: (・◇・)?

Jin Peng has already been rectified by this pair of masters and apprentices!

However, Su Xiu's order was still carried out meticulously.

Who let the officials crush people to death?

What's more, Su Xiu is several levels older than him!

Jin Peng doesn't care about it now anyway, Su Xiu can't take care of it, is he still in a hurry?

Anyway, he did what he should do, now it's just to execute the order and put it badly, if you love to cultivate immortals, you will cultivate immortals, and if you love demons, you will be stunned, anyway, we are small, how can we love it!

Next, Jin Peng carried out Su Xiu's orders every day, and led a team of soldiers to guard the gate of the experimental field.

Until one day, a violent explosion suddenly sounded in the salt field: "Boom! ”

Jin Peng happened to not be guarding the gate of the experimental field at that time, because he was in the pit on the side.

As a result, this loud bang frightened Jin Peng into a pit with a slippery step!

"Damn, is it a landslide!?"

Jin Peng reacted quickly, didn't dare to slack off, forcibly clamped off, held back, lifted his pants, and rushed out of the pit almost before he had time to tie his belt!

The results came out and took a look.

"Hey, the mountain didn't collapse? There were no dark clouds in the sky, and it didn't sound like thunder......"

Jin Peng was suspicious.

His eyes glanced at it unintentionally, but he saw that in the direction of the gate of the test site, Yang Xu, who had a black face, rushed out, dancing with his hands, very excited, and seemed to be constantly shouting something!

Jin Peng frowned, although the expression on his face was very serious, he was already a little scared in his heart.

"Damn, Supervisor Yang can't summon some evil worship in it, right?"