Xu is pain at the beginning left Jun Qianqian a little psychologically behind, she has been resting for several days, and she still puts her hands on her chest from time to time, as if it is not very comfortable.

"What's wrong with you, didn't you say that you went to the Baiyan tribe to teach people to strike iron, why did you get sick when you came back, and you were uncomfortable for so many days?"

Pula and Jun Qianqian walked side by side around the wilderness tribe, walking slowly.

"We've been working on something new lately."

The map of the ore vein has been handed over to the tribesmen, and Jun Qianqian feels that it is time to give Pula a thorough understanding.

"Something new?"

Pula looked dazed.

"What new stuff is it that you want to dig a hole around the toilet every day?"

Recently, the people of the Purple Flower Tribe, who have been circling around the toilet every day, have not even let go of the manure tank in the sheepfold, and they are about to be pickled.

"I don't want to."

But saltpeter is not yet in the conditions for mass production, so it can only be collected in this way.

"Are you going to sell this new thing? Will it be sold to us? ”

Pula asked tentatively with a look of eagerness.

"It shouldn't be sold in the near future, after all, it will take a long time to experiment, and it is estimated that it will take a long time to meet our own needs, but we are not selling iron to you now, girl, don't be too greedy!"

The raw materials for making black ** are about to be collected, and the research of thermal weapons is also on the agenda.

"Alas, you purple flowers are like little rabbits and rats in winter, always hiding the best things, let alone selling them, and not letting others look at them!"

Pula grumbled half-truthfully.

"Development generation, equipment generation, foreign trade generation."

Jun Qianqian will always be in line with the principle of not revealing the money of the ancestors, and will make the best use of *** to the extreme.

After digging the toilet for several days, the saltpeter was also ready, and the mining team that went out also used bamboo baskets to carry two large mines of pyrite, which were mixed with the magnetite ore traded with the Baiyan tribe, which did not arouse the idea of the wild tribe at all.

Pla had obviously heard Jun Qianqian's high-energy warning, but she couldn't guess any clues from their actions.

Pyrite is not fundamentally different from magnets, using carbon and carbon monoxide to reduce iron from compounds.

It's just that when refining pyrite, the proportion of each component should be adjusted, and more limestone should be added as a solvent to separate the sulfur.

The only obvious sign of making a thermal weapon is the strong rotten egg smell of sulfur.

"Everyone should wear masks and gloves, sulfur is a low-toxicity thing, but long-term exposure is still harmful!"

Jun Qianqian kept reminding everyone that they had temporarily built a small black workshop on the vacant land lent to them by the wilderness tribe.

Don't look at the small size of this wooden house, but it is full of organs, especially all kinds of fire extinguishing devices, and the four big characters that are almost written on everyone's head:

"Safe Production"

"This kind of thing is very dangerous, and in the follow-up research, you must also strictly follow the laboratory safety management regulations, you know?"

Safety awareness should be cultivated from the beginning, but it is an unstable thing, and now the output is not large, and so on in the future, the production will be more, in case of an accident, it is an earth-shattering accident.

Jun Qianqian wore thick protective clothing, sewed several layers of gauze masks with Pelo, and carefully configured black ** with a simple small scale.

Three parts saltpeter, one part sulfur, and one part charcoal, after being fully mixed, become the raw materials for weapons that explode in case of fire.

"Purple Flower Heat Weapons Project, ** First Test Explosion, Countdown to Ignition!"

It was a good weather without wind, and under the big sun, Jun Qianqian put a small pile of ** on the open space, and made a lead with saltpeter and pulp, pulled out a distance of more than one meter, and carried out the first ** test explosion.

"Bang!"

The spark crackled and burned along the lead, and soon ignited the **pile, but when the ** burst open, it only made a sound not much louder than the sound of the drum.

The pile exploded, leaving behind a puff of smoke and the smell of gunpowder that everyone gradually smelled.

"Can this thing really be used as a weapon?"

"It doesn't look like anything terrible."

"It doesn't feel dangerous, does it?"

The tribesmen looked at the results of this experiment, and they all couldn't believe it, and they thought that Jun Qianqian's experiment had failed.

"No, the experiment was successful?"

Jun Qianqian recorded a stroke in her notebook.

"This is this thing, it doesn't look dangerous at all, right?"

The tribesmen couldn't help but be suspicious.

"**yes**, I haven't started making shells yet, what's the hurry?"

Jun Qianqian looked at everyone with a smile, so she had to explain it to them.

"The most common shells are divided into two types, one is ***, and the other is **."

From the beginning of thinking about making **, Jun Qianqian planned to make cannonballs, and she didn't want to develop muskets at all.

In her concept, a firearm is an extremely inconvenient firearm to use and a particularly cumbersome to maintain, requiring at least half a minute to reload a single shot.

Since it's all single-shot, isn't it good to put all your skill points on the cannon?

Of course, if she has the ability to directly make a machine gun, automatic or semi-automatic rifle, she can also form a very effective fire suppression.

But how did she know the principle of an automatic rifle?

Don't embarrass yourself.

"The lethal principle of *** is similar to that of heavy crossbows, all of which use extremely fast speed to penetrate the enemy's defenses, and our current heavy crossbows are quite easy to use, so we don't need to develop *** first."

"The principle of ** is different from that of a bow and arrow, it is a mixture of small stones, broken pottery shards or small steel balls with **, and then thrown out together after ignition."

** will blow shrapnel everywhere, and if someone is within the radiation range of shrapnel, they will be killed.

The tribesmen all participated in the production of black **, and also saw the scene of the test explosion just now, originally everyone had no concept of the power of thermal weapons, but in Jun Qianqian's narrative, they all shuddered.

"When the time comes, add a lead and throw it out with your hand, it's a hand**."

The principle of the cannonball is not complicated, the difficult thing is the production of the artillery, she doesn't know what the inside of the cannon looks like, so she can only get the hand out first.

Even if the way of throwing it by hand limits the range of the shell, it is still enough to deter thermal weapons at the present time.

Jun Qianqian squatted on the ground and pinched the mud, the clay texture of the wilderness tribe was not as good as the purple flower, and the pottery had to be reconfigured in proportion.

Fortunately, they found high mountain soil in the underground palace, and they can already start firing porcelain.