A fluorite mine with a radius of thirty square kilometers will still leave many traces on the surface even if it is blown to pieces by the wind.

Just after noon, Li Feng sent someone to report that he had found a lot of colorful gravel as Lang Jun said.

Li Chengzhi was overjoyed and immediately ordered the entire battalion to dispatch.

One battalion defends the stronghold, and four battalions dig... There are so many people under Heli Mountain that they are like ants...

Seeing more and more fluorescent stones piled up in front of his eyes, Li Chengzhi's 36,000 pores all over his body were laughing.

Let’s just say, for thousands of years, no one knew there was such a good thing here, so how could it not be cheap for you?

Sent it...really did it...

Not to mention the luminous pearls as big as apricots, the largest one is as big as a basketball, enough to carve a jasper watermelon that glows at night.

Li Chengzhi tried his best to suppress his excitement and told Li Song in a low voice: "I will take the first step tomorrow, and you will find a way to send people to transport this thing over, as long as it can be transported across the Yellow River..."

With Li Song's ability, whether he is pretending to be a barbarian or a caravan, he can only transport it to Longdong, otherwise the secret will most likely be exposed.

But as long as he can reach Longdong, it is equivalent to entering his own territory. Li Chengzhi will find a way to transport it into Guanzhong, and then find jade craftsmen to carve and polish it, as well as how to sell it, who to sell it to, etc., it is not difficult.

Things.

He also explained to Li Song some details on how to dig, how to transport, and how to prevent damage.

After giving an overview, it was almost dark.

Thousands of soldiers protected the two carriages and returned to the camp slowly.

The two carts are all filled with fluorite crystals that are larger than the size of a fist, and come in all colors. The greenish fluorite alone is enough to fill half a cart.

But they are all raw ores, and they have to be sorted and sorted, so it is impossible to carve so many luminous pearls.

But as long as he can carve out one-third of a half-car, Li Chengzhi can wake up from his dream with a smile...

……

The sun sets in the west and the moon rises above the branches.

There was a breeze blowing at the foot of the mountain, and the poplar trees swayed with the wind. The shadows of the trees were suddenly big and small, long and short, like a monster with teeth and claws.

The lights in the Chinese army's tent were brightly lit, as bright as day.

This felt tent was snatched by Li Song from a Lushuihu tribe just a few days ago, so it smells a bit strong.

But it's very big, covering hundreds of square meters.

The cypress branches have just been burned inside, exuding a faint fragrance.

It’s not that Li Chengzhi is so delicate that he can’t bear the smell of mutton, but it’s used to prevent mosquitoes.

The more luxuriant aquatic plants are, the more these things are.

If you don't light some cigarettes, and you don't know how people will be stung, the candle flames will explode like a firecracker. It doesn't take much effort, and a pile of them will fall under the candlestick.

In addition to mosquitoes, there are also flies.

Good guy, have you ever seen a gadfly as big as a thumb?

It's bigger than a bee, and if you bite it, your face will swell into a pig's head in less than a moment, making it impossible for your mother to recognize her when she comes.

Being bitten is only second, this thing can also transmit parasitic diseases.

Li Chengzhi asked Li Song to remember that no matter whether they were soldiers in the camp or the refugees who would be transported in two months, they were not allowed to drink raw water or eat raw food.

And unless absolutely necessary, such as when there is a food shortage, we must not eat livestock that have died of illness.

Are you kidding?

In this era of lack of medical treatment and medicine, a common case of dysentery may wipe out a family.

There are also marmots, which are everywhere around the camp. There are so many of them... and they are not very afraid of people.

This guy is not ordinary fat, he tastes delicious...

Li Chengzhi knew that he might not be able to help it, but he still said: Unless you starve to death, you must not eat.

The Baijia camp is not like the herdsmen, where only one family dies. If you really want to contract the plague, just wait until the end of the camp...

After explaining some trivial matters, Li Chengzhi began to give secret instructions one by one.

The four-foot-long plan is covered with paper, with pictures and text.

Sitting across from him was Li Song, eyes wide open and ears pricked, wishing to engrav every word Li Chengzhi said in his mind. His expression should be as serious as possible, as serious as possible.

Li Chengzhi grabbed a pencil that was slightly thicker than his index finger, and while explaining to Li Song, he drew pictures and recorded some key points.

Don't be surprised, although graphite is uncommon, it is not very hard to find, and it is much easier to make a few pencils than to make steel and forge iron.

That is to say, there is no time, otherwise Li Chengzhi would definitely look at Li Song and others, memorize all these drawings and key points, and then burn the drawings before he can leave with peace of mind.

But it is a pity that he will have to leave tomorrow morning at the latest.

In desperation, Li Chengzhi had no choice but to do something: write it down and give it to them, and then destroy it after they have memorized it.

He did not teach everyone all the knowledge. He divided the three processes of ore refining, steel making, and armor forging into three parts, and each person only taught one third.

For example, Li Song and Li Chengzhi only taught him how to make coke, how to prepare ore, and how to use catalysts and fluxes in steelmaking.

The second one is Li Liang: how to burn refractory bricks, how to make crucibles, how to smelt ore into lumps with pig iron properties, or how to make iron by frying it to the bottom, and then use a crucible to combine the two.

Neutralize into steel.

The remaining processes with relatively low technical content, such as furnace starting, smelting, hammer forging, cutting, etc., were all taught to the old blacksmith.

There are many disadvantages to this, and it will definitely lead to low efficiency. Moreover, as long as one of Li Song and Li Liang is absent, the steel cannot be smelted.

There is only one benefit: to prevent the secret from being leaked, or the scene he least wants to see happen: betrayal!

The human heart cannot withstand temptation. After thinking about it, Li Chengzhi still felt that it was better to nip it in the bud.

It's better than having him clean up his house in tears one day...

In addition to steelmaking, there is also saltpeter making.

Li Chengzhi thought about it over and over again, but in the end he didn't dare to let Li Song, Li Liang and others make artificial gunpowder without him personally watching.

Even if it was just the method of making saltpeter, he gritted his teeth and persuaded himself a hundred times in his mind before he made up his mind to teach Li Liang.

This chapter is not over yet, please click on the next page to continue reading!

This is the real Pandora's Box, a killer weapon that can completely overthrow this era. Li Chengzhi does not want to make this world a hell because of his greed or indulgence...

In addition, there are some technologies such as benefiting the people and cultivating fields. Naturally, the more people can learn this kind of knowledge, the better. Li Chengzhi simply summoned more than a hundred officers and held a public class.
p>

What he said was a bit messy, and Li Chengzhi basically talked about whatever came to his mind, but it was extremely useful.

For example, Quyuan plow.

In fact, it is not exactly as later generations said, the short shaft plow was only invented in the Tang Dynasty, but it existed during the Southern and Northern Dynasties.

However, it is still a straight shaft, and its name is "Wu Ren Wei Li". It should have been passed down from the Jiangnan area during the Three Kingdoms period, and it is similar to the origin of Qu Yuan Li in the Tang Dynasty.

After changing the straight shaft to a curved shaft, Li Chengzhi made some improvements: for example, adding a wheel to the end of the plow, which saved more than half the effort of oxen and horses when plowing.

Another example is designing the plow blade and plow frame to be separate, so that the plowing depth can be adjusted at any time.

It doesn’t matter how knowledgeable or versatile he is, Li Chengzhi feels that as long as he is a rural child, as long as he has graduated from junior high school, he will know how to change this thing at a glance.

Of course, the premise is that you have qualified steel...

But just these few slight changes have completely subverted the perception of people in this era.

As soon as the drawings were finished, the group of tribesmen below could not help but want to kneel down and kowtow to Li Chengzhi.

This kind of plow can not only plow deep if you want, and plow shallow if you want, but even when there are no livestock, you can change it to a thinner plow and shovel, and a single person can plow the land...

Li Chengzhi had to lament how correct the saying "knowledge can liberate productivity" is...

This lecture lasted until midnight. If he hadn't been worried about setting off at dawn and having to travel nearly two thousand miles in a hurry, Li Chengzhi would have definitely been able to talk until dawn.

When they learned that Lang Jun was leaving, no matter how reluctant they were to leave, more than a hundred generals had no choice but to bid farewell silently with tears in their eyes...

Li Chengzhi strictly ordered that no one, including Li Song, should see him off.

……

The stars are shining and the moon is sinking in the west.

The east has begun to shine, and there seems to be a golden thread connecting the sky and the earth, getting thicker and brighter.

It's like there's a fire dragon hidden in it, about to rise into the sky.

There was a gentle breeze, making the leaves rustle, and occasionally there were a few insects chirping.

The air is filled with thick water vapor, mixed with a few hints of grass and the faint fragrance of wild flowers, fresh and cool.

What a wonderful place, just like the peach garden outside the festival.

There is a long way to go...

Li Chengzhi looked at the quiet camp quietly, took a deep breath, and slowly exhaled.
To be continued...