On the eastern outskirts of Yecheng, on the edge of a village, dozens of soldiers were surrounding a dilapidated courtyard, blocking the onlookers from the villagers, and in the thatched hut in the courtyard, Yuwenwen was talking to Taoist priest Liu Yang. Pen × fun × Pavilion www. ｂｉｑｕｇｅ。 ｉｎｆｏ

Just now in the city, Yuwen Wen appeared the prototype of the 'university monk', and with the endless chemical terms, the alchemist Liu Yang was bombarded with doubts, and the other party was extremely envious of the art of 'chemistry', so he wanted to use secret techniques to seek 'chance'.

In these years, the secret recipes and secret techniques of alchemists, Yu Wenwen felt that under the mystery was the general chemical reaction equation, but there was no systematic chemical knowledge in ancient times, so it would be quite mysterious.

In the spirit of picking up leaks, Yu Wenwen decided to see how Liu Yang's secret technique was first, and he was thinking that if there was any chemical process that failed to pass on to future generations, it would be considered earned.

Liu Yang's real place of settlement is in this courtyard, this village is not far from Yecheng, so it is very convenient to enter the city to purchase, he is mainly here for alchemy, and the courtyard in the city is only a temporary alchemy place.

At this time, the bull-nosed Taoist priest was rummaging things in the house, Yuwenwen looked around, and saw that the thatched house was very simple, except for two beds and simple daily furniture and cooking utensils, it was a bunch of jars and jars.

'There is no land, no livelihood, is it by selling those unreliable pills?' What is the source of income for the master and apprentice? He thought that the financial source of Liu Yang and the little apprentice was a mystery.

If there is a Taoist temple, there can be offerings from believers, such as incense money, and with a Taoist temple, you can have some land, plant some vegetables and fruit trees, and other things to 'subsidize the family', or carry out professional services, similar to fortune-telling, disaster dispelling, and practical things.

But Liu Yang, a wandering Taoist priest, has no roots and no foundation, and is the so-called 'Dan Xiu', and he is not very good at fortune-telling and doing things, Yuwenwen thought of this, and couldn't help but be full of malice: Could it be that he made some small blue pills to sell?

Just as he was thinking wildly, Liu Yang took out a small cloth bag out of nowhere, held it in his hand nervously, and opened the cloth bag, revealing a few golden grains.

Yu Wenwen's first reaction was that this thing was called "Jin Kela", but then he realized that he was thinking too much, he looked at Liu Yang, tentatively reached out of his hand, took a pill and spread it in the palm of his hand to observe, and then asked in a low voice: "Could it be gold?" ”

Liu Yang smiled mysteriously, noncommittal, Yu Wenwen pinched it with his fingers, and found that this thing was very hard, it should be metal, considering the golden color, it made people feel more and more that it was gold.

Combined with the other party's mysterious smile, Yu Wenwen had an answer: this is not gold.

"Daochang Liu's secret technique, isn't it alchemy?" He asked in a low voice, Liu Yang was quite surprised when he heard this, and then nodded.

'Bluff people, and some alchemy. Yu Wenwen complained in his heart, it is impossible to have some alchemy in the world, even in the later life, it is possible to order 'some' gold in the laboratory under extremely harsh conditions.

"Lang Jun is right, this secret technique is alchemy." Liu Yang's eyes narrowed with joy, he planned to exchange this precious alchemy for "chance" to learn the fascinating 'chemistry'.

"Alchemy..."Yu Wenwen muttered, he was guessing what this golden thing was, of course it was definitely not gold.

Both alchemists and alchemists are obsessed with gold, and the original purpose of the alchemists in the West was to make a fortune by 'turning stones into gold', while the alchemists in the East were to refine the elixir that made people immortal.

The so-called "gold into the fierce fire, color does not take away the essence of light, since the opening up, the sun and the moon do not lose the light, gold does not lose its weight." …… Gold is incorruptible, so it is a treasure of all things, and warlocks eat it and have a long life. ”

The ancient monks first searched for immortal elixir from the sea, and after successive failures, they decided to refine that strange thing by themselves. But the heavens and the earth are huge, and there are many things, and the first thing they think of is gold that is immortal for thousands of years and will not be refined for a hundred years.

This view is deep-rooted, and Ge Hong, a Taoist priest in the Eastern Jin Dynasty, said: "Gold is put into the fire, and it will not be eliminated by a hundred refinements, and it will be immortal when buried", so eating it can "refine people's bodies and make people immortal".

In the eyes of the Central Plains alchemists, if a person can enter the realm of immortality, he is an immortal, so how to use gold to "refine the human body" has become the key.

Based on the natural phenomenon, there is no other possibility than death by swallowing gold directly, so the warlocks have invented a new theory, believing that gold has been in the mountains and rocks for tens of millions of years, and is generated by gathering the essence of the sun, so it is hot in nature and naturally poisonous.

Since it is poisonous, it must be inappropriate for people to eat it, and the concentrated 'sun essence' will inevitably burn people's bone marrow, so that they will shrink and die, so they advocate trying to use mineral medicine as raw materials to cultivate the essence of gold in the danding and create artificial gold, which is called medicinal gold.

As for the natural dansha minerals, they believe that the dregs that cannot soar are harmful to people, so it is best to make them artificially and after a few turns of cultivation, they can become a divine pill.

This set off a transformation activity, and the danfang became a primitive chemical laboratory, and an endless stream of alchemy was 'discovered', and of course, some warlocks also thought of other uses, that is, to make a fortune.

The stones in the ground, with a mysterious recipe, are put into the alchemy furnace and burned for a few days, and the result is golden gold, this temptation is difficult to resist.

But this is impossible, Yu Wenwen will never believe it, the reason why he is groaning is completely reminiscing, and after a while, he finally remembered what this thing probably is.

"Daochang Liu, this is not gold, is it?"

"Well, of course not, but it's similar to gold..."Liu Yang replied, looking slightly embarrassed, but he still didn't hide it, Yuwenwen was very satisfied with his performance, looking at this thing like broken gold, he finally figured out something.

The main source of income for Liu Yang and his apprentices is probably this fake gold.

"Let me guess, could this be the result of a little copper?"

"How did Lang Jun know?"

"The name of this thing is Huang... I guess it's called a rock, right? ”

"It turns out that Lang Jun also knows the subtleties?"

Liu Yang was quite surprised, but Yu Wenwen didn't answer his question, looking at this golden thing, Yu Wenwen remembered the popular science of that life, this thing is often used by criminals to pass off as gold.

Brass is a copper-zinc alloy, its appearance is golden, and gold is quite similar, so people often use brass jewelry to pretend to be gold jewelry, with the excuse of "urgent money, low price", to deceive the uncles and aunts in residential areas.

In this era, even before the Ming Dynasty, brass was not called brass, but was called stone or copper, and the original smelting method was to mix red copper with zinc-containing ore and charcoal, and then smelt to get brass.

This smelting method appeared earlier in Rome, Persia, Tianzhu and other countries in the Western Regions, and the records of the appearance of the stone in the Central Plains were not until the period of the Northern and Southern Dynasties, when women used gold, silver, and needles made of stone to do the game of threading needles.

In this era, the stone (brass) was often mistaken for gold, but due to the level limit of smelting, the production of the stone was not high.

Thanks to the popular science of that life, Yu Wenwen has a deep memory of the fact that brass can be passed off as gold, but he has no ability to explore zinc-containing ores, so the idea of "turning copper into gold" has not been realized.

But now this Liu Daochang seems to have a way, so when he sees these few grains of brass, his mind is alive: smelt in large quantities, and then... Hey, hey, hey.

"Lang Jun?" Liu Yang asked on the side, he saw that Yu Wenwen seemed to be smirking, and he was a little worried that the other party would break his promise, if there was no 'chance', there would be no chance.

Yuwen Wen coughed dryly, and then thought of a very serious question: "Daochang Liu, how is this stone refined?" Isn't it made of ore and copper and charcoal? ”

"Lang Jun has really heard of how to refine the Hammer Stone." Liu Yang nodded, "It's just that I have been groping for many years, and I used another method." ”

"Just pull it off, zinc alchemy didn't mature until the Ming Dynasty... Soul is weak, maybe you've already figured it out! It's incredible! Yu Wenwen was quite surprised in his heart, he hesitated for a moment and then asked, "Could it be that Daoist Liu can refine a thing, and then combine it with copper to refine this stone?" ”

"Exactly, the so-called secret technique of the poor road is how to refine this thing."

Yu Wenwen looked at this Taoist priest and saw that he was quite confident, and his mind became active.

There is another method of smelting brass in large quantities, that is, smelting metal zinc, and then smelting copper-zinc alloy together with metal copper, this process only appeared in the middle and late Ming Dynasty, and then it was called "brass".

The art of turning red copper into brass from zinc ore was mastered very early in many parts of the world, but the technology of refining metallic zinc appeared rather late, because zinc is one of the most difficult metals to smelt.

According to the popular science of the chemistry teacher back then, through the residual memory, Yuwenwen knew that zinc was also called 'Japanese lead' in the Ming Dynasty.

Of course, it was not because only the Japanese could smelt, but because the southeast coast was making trouble at that time, and the metal zinc was "like lead and fierce". "This thing has no copper ambush, and it will fly away as smoke when it enters the fire", so it was given this strange name.

Yu Wenwen didn't know what was going on with the ancient method of zinc smelting, but he only remembered that the teacher said that in ancient times, the invention of zinc smelting was a brilliant achievement in metallurgy and chemistry.

And then I'll give you this bull-nosed veteran to discover the refining method? Then I will receive the power of the desolation and become...

Yu Wenwen only felt his heart pounding, he felt that if the other party's method was really effective, then he would become the first deceiver in the Central Plains... The richest man is not a problem, such as a mountain of brass, take it as gold to fool people, how cool it is!

It's just a matter of thinking about it, brass is still more troublesome to pass off as gold, first of all, the weight, brass looks similar to gold, but the density is very different, and the weight difference is obvious in the same volume, for example, the weight of gold bars and brass bars is obvious.

Another point is that "real gold is not afraid of fire", gold jewelry is still golden after the fire, and brass jewelry changes color after the fire shows its original shape.

So in front of connoisseurs, brass can't pass off as gold, but Yu Wenwen also thought of it, that is, to make brass into small particles, that is, similar to these grains in Liu Yang's hand, the weight difference is difficult to detect if the volume is small, and not everyone knows how to burn it to test the color.

Or make small-sized gold jewelry to deceive those poor landlords!

Yu Wenwen was at war between heaven and man in his heart, fighting for the immoral behavior of brass counterfeiting gold, Liu Yang on the side saw that the other party began to wander again, and couldn't help but feel anxious, he pulled Yu Wenwen's robe, and after he came back to his senses, he whispered: "Lang Jun, there is a secret technique in the poor road. ”

"Also... And also? Yuwen Wen was overjoyed, "What is it?" (To be continued.) )