With Henry Worden's perceptual attributes, you can certainly hear what they're saying.

But although I can understand every word, I can't understand it at all...... There were even a lot of terminology-like transliterations that he had never heard of.

For a sage, he stumbled upon knowledge that he didn't know at all.

This is undoubtedly quite a novel and rare experience.

Seeing St. Henry again, the players immediately became serious, no longer fighting with each other, but saluted him respectfully.

"What about this......

Lin Yiyi was also very entangled.

She wasn't sure how to explain this to the Sage.

It feels like explaining the game terms to a kind teacher who is already a grandparents......

Probably this is called the generation gap.

And at this time, Jiu'er was the first to talk to him:

"-Can we touch his body?"

“…… Touch the corpse? Jacob's? ”

The Sage was stunned for a moment: "But ...... Does he have a body? ”

Then, Henry Worden was quick to react: "Oh...... Do you want loot?

"That's fine, I'm sure there aren't any other Gold-tier Fallen in their hometown. Be a little careful and vigilant when you search, and with your strength, there shouldn't be any major problems. ”

He wasn't really that interested in what the players were talking about before.

Since the topic was diverted, he didn't bother to go back again.

Just patiently introduced to the players: "You follow this road all the way to the door of a barbershop. Then turn into the alley on the left, and turn right when you reach the end. It's in the backyard of the 'saltpeter ranch'. ”

"Speaking ......"

Si asked curiously: "Why is this called saltpeter ranch?" ”

Smelling the more and more obvious smell of sulfur, seeing such a sabotage wizard approaching him, Henry also subconsciously took half a step back, and pursed his lips with some fear.

This made the four dark carvings a little surprised.

…… It turns out that his deterrent power is also effective against this kind of immortal sage?

It's worthy of the school of destruction, but there are cards!

"It has something to do with your destruction of the school."

The Sage spoke slowly, "You may not know that gunpowder used in firearms contains a certain percentage of nitrate. ”

“…… Well, I know. ”

Fourth, the dark expression was a little complicated.

He never expected that one day he would be taught a serious science chemistry by people from the other world.

It was not easy for him to resist his impulse to start chatting about potassium nitrate on this question—after all, he was still a working college student, and he hadn't forgotten the content of the college entrance examination.

However, he thought about it, if he wanted to pretend to be this traverser, he still tried to pretend to be his own people.

"And one of the main sources of nitrate is saltpeter. But saltpeter also has to be treated before it can be used to make leather, or to make gunpowder powders, dyes, conversion mixtures, and the like. ”

The Sage said solemnly: "However, the blood of the Fallen, or the blood of the Fallen that has been completely eroded by the curse and turned into a demon, if it is fresh enough, can be added to the fermented urine and mixed with it, and then thrown into explosives or directly used spells to explode it, and can directly make saltpeter powder of considerable purity, which can be directly used to make gunpowder." It was an unexpected discovery by a sorcerer of destruction, and it took generations of refinements to become a usable recipe.

"In other words, if the demon is controllable enough, it actually has value to breed...... As far as I know, there are several cities that use it to make nitrate underground, and they generally use this method.

"After all, urine and blood are cheaper and inexhaustible than purified from nitrate...... The meaning of the so-called saltpeter ranch is actually the meaning of breeding demons. ”

“…… I see. ”

Si nodded darkly.

Because there were too many grooves in this conversation, he felt that he couldn't spit out the grooves in his stomach.

"Then I'll go," the scarred young man saw that everyone was silent for a moment, and he didn't find another topic, just smiled at everyone, and nodded, "See you soon, everyone." ”

Then he went in the other direction.

The four darks, along with the other three, remained silent and watched his back disappear.

"I feel like you're choking on something......"

Lin Yiyi whispered.

Four nodded silently.

He was actually still a little wary of this sage.

Although it looks friendly these days......

But what if the position is different in the future?

In that case, the force he is blowing with this big brother now will become the difficulty of the dungeon that will be increased in the future. If you accidentally enlighten him and create something sick, then in the end it is still yourself who will solve the problem.

Unlike his sister, Si Dark has always been wary and distant from people.

Speaking of this, an idea popped into him.

Although it is not quite certain, the knowledge of this world and the earth is universal...... For example, there is no oil in this world at all. And neither the records of this world, nor the exploration of various places after they dispersed, have never found any trace of crude oil......

Coal and natural gas are available. And the level of development and awareness is not low.

Even the value of coal and gas fields is greater than that of mining areas – even if they already have clean alternatives to "crude oil" such as black and green fire, the strategic reserves of coal mines are still important.

Moreover, one of the raw materials for the transformation of black fire is the stored natural gas - there is a very precious gas well at the bottom of the black tower in Zedi. It's so much appreciated that players can't even get in. Green fire is much simpler...... It is a safe energy source for secondary conversion with black fire, and the black fire used to convert green fire will be specially treated and mixed with a stabilizer that makes it non-explosive.

Although it looks similar, it has already been tested by players who know something about it, and black fire and green fire are not crude oil and natural gas liquids at all. Their combustion efficiency is not at all something that can be applied by civilizations at this stage.

It can be said that if there were no two transformation products, black fire and green fire, the civilization of this steam age should not exist at all.

And the transformation into black fire and green fire is the way the wizards of this world use natural gas - I don't know what method they use, they can use special recipes and conversion processes to make natural gas into black fire and green fire with relatively stable properties and outrageous combustion efficiency.

The former contains higher and more intense energy, while the latter is more gentle and controllable. Because the green fire is a flame that "will never explode", the temperature is also very low, so it will not easily burn children.

It's also quite inexpensive - it's a decision on the part of the Hugo Tower owner, who decided to make the recipe for Green Fire public. A bronze transformation wizard can steadily produce enough green fire for a town; And the consumption of green fire for cooking in the whole city is only three to four barrels of black fire per day.

Later, Master Benjamin further optimized the recipe: as long as the three apprentice wizard apprentices were together, they could also complete the transformation from black fire to green fire, and the amount of black fire spent was directly reduced to one-third. If there is no black fire, coal or charcoal can also be used for alternative conversion, which is much more efficient than using coal and charcoal directly.

This price, combined with the cost of manpower, is apportioned to each household, which is almost the same as buying firewood directly. However, the quality of the flame is much higher than that of firewood, and it only needs to be put into the coin to vent the gas, so there is no need to carry the firewood and the burning wood used for heating in winter and store it carefully, but it saves a lot of money.

Benjamin did exactly what he had promised Evelyn – he made it possible for every household to light a lamp and cook a meal.

Even the townspeople of Noah's kingdom gradually developed the custom of drinking hot water...... This is also because the cost of combustion is getting lower and lower.

Before that, wanting to drink boiled water was actually a luxury in this world.

Black Fire aside...... But the "green fire" technology is even more advanced than the earth. And the fact that crude oil does not exist in this world makes it very doubtful that knowledge on Earth can be used here.

If they casually come up with a recipe for their world, and then find that it doesn't work in this world, or it already has it, or it's too inefficient—it would be too much of a delay for Annan.

But when Annan succeeds to the throne, this will not be a big problem.

They just need to come up with the direction and let His Majesty Annan send scholars to try.

Don't ask how you came up with it, if you ask, you steal it, don't ask about it.

Thinking of this, Si Dark's heart suddenly moved.

He realized that as a wizard of destruction, he seemed to have too few dangerous items on his body......

"You go first, take my luggage," he instructed his companions, "I'll go buy some spellcasting materials...... I'm traveling lightly, and I'll be able to keep up with you soon. ”

"Okay, then you hurry up."

Lin Yiyi quickly responded.