I handed in the sand sculpture through the book system

Although I probably guessed the intention of the male lead, but the advisory group no longer has the time to continue to pay attention—after entering the state of combat readiness, the affairs of the entire Jiangling City suddenly expanded by more than ten times, and 51 modern people from Mu Chen to the next I'm so busy with my heels, I don't have any energy to pay attention to the mental state of the prisoner

Generally speaking, the preparations for this time have fully absorbed the previous lessons, trying to achieve a delicate balance between vigilance and normal economic activities, so as to strengthen the resilience of the economic system in Jiangling City.In addition to daily patrols, epidemic prevention, and city defense strengthening, the crossing team also issued a series of measures to restore the economy in the name of King Hengyang.

In the newly implemented regulations, the crossing team opened up a special market in the city, allowing residents in the city to set up stalls and operate normally after undergoing quarantine, and reduced all taxes for this year on the grounds of praying for the blessings of King Hengyang.Considering the large influx of refugees, the time-traveling team also established a free childcare institution on the school ground behind the government office, and also engaged in basic literacy teaching along the way.

In addition, Bei Yan and others also introduced the advanced experience of poverty alleviation in the countryside: they selected a batch of well-preserved fertilized eggs and vegetable seeds from modern materials, and lent them to hardworking and reliable families in the city, and agreed for a year For a period of time, each family will hand in two eggs and one radish after the expiration date.

"It's not that I care about such a little thing." Bei Yan explained: "The main thing is that there must be pressure, at least you can't take it home and cook it as an extra meal."

This is obviously a talk of experience in poverty alleviation, but the pressure brought by this talk of experience is even heavier.Now, in addition to focusing on human epidemic prevention work, Shu Bai has to develop in the veterinary department and set up a poultry quarantine team.

However, at the time when the traverser was helpless and difficult to take care of, Gao Duo and others maintained a rare silence and obedience.Of course, this is not because the male lead was frightened by violence and began to cooperate sincerely, but a deliberate calculation - after Gao Duo sent out the dragon brain incense pendant, there was no response for a long time, but there was no warning of punishment.He thought about it for a long time, and felt that Mr. Duan and the others were probably hesitating and unable to make a decision. He should give a little help and continue to show his ability to recruit talented people.

For this reason, he specifically asked his subordinates to adjust their strategies.In the past few days, the attitude of the prisoners in the Northern Dynasties has become more and more positive. However, when they are working, one or two people will clap their hands and sing "Duan Ge Xing" by Emperor Wu of Wei, such as "Qing Qing Zi Jin, leisurely my heart"; After the labor is delivered, they will sing Shangtang's congratulations, such as "If you want to be left, you will be left; if you want to be right, you will be right. You don't have to die, but you will enter my net." You sing me and it's so lively.

In Cao Cao's "Duan Ge Xing", "The Duke of Zhou vomits and feeds, and the world returns to his heart", which expresses the utmost sincerity of seeking talents and thirst; Shang Tang's prayer is an allusion of "opening the net to three sides", which clearly expresses the generosity of letting go of the past.Gao Duo ordered people to chant repeatedly, although the words were euphemistic, the intention was obvious: if Mr. Duan and others were willing to join him, not only would he not care about three sides, but he was also willing to employ people with talents, and he would not spare high officials and generous salaries.

Generally speaking, this method of recruiting and surrendering is still considered to be aesthetically pleasing, quite compelling, and quite in line with the temperament of intellectuals in the Middle Ages.If Dr. Wang Zhiwang is here, maybe he really has the time to go along with him.It's a pity that Duan Ke and Duan Gong are in charge of the supervisor now.As a master of pure engineering who hadn't touched classical poetry for more than ten years since his sophomore year in high school, the recruited sage listened to people singing for half a week, and the only thing he felt was that the ancient labor chant was actually pretty good.

——It can be said that it is a top-notch playing the piano.

But after a few more days, Duan Gong didn't even bother to listen to the labor chant.He paid a private visit to Mu Chen, and directly pointed out the current predicament:

"—Simply put, our resources are running out."

Mu Chen was puzzled: "What?"

"Iron resources are almost exhausted." Duan Ke said: "There is only one iron mine with extremely poor grade outside Jiangling City, and the output is astonishingly low. In the past, all kinds of metal utensils were made by recycling the armor weapons of Hou Rong's subordinates. , The weapons in stock are basically used up now, if there is no high-quality iron ore to replenish, I am afraid that the blast furnace will have to cease fire soon."

At the beginning of time travel, Pepsi was first established. Duan Ke's current steelmaking equipment is just a small blast furnace built by himself. It only weighs a few hundred kilograms of steel every day. The large-scale expansion has to wait for the news from Tangshan.This kind of indigenous equipment has relatively poor slag removal and smelting capabilities. If low-quality ore is forced into it, the furnace may have to be fried on the spot.

Mu Chen frowned, but quickly relaxed it.

"It doesn't matter." He replied with confidence: "This kind of thing... can definitely find a preparation."

Duan Ke felt confused: "What?"

——According to the regulations, all changes in the metal reserves in Jiangling City must be approved by Duan Ke, why doesn't he know what preparations are in place?

Mu Chen smiled slightly, and told Duan Ke what he had discovered in the past few days: Simply put, since he maxed out the favorability of the male lead, the system has been refreshing the original plots related to the male lead in front of his eyes as a form of gloating. ridicule.At first, Mu Chen was naturally furious and retorted, but in addition to the stinking mouth, he was furious and depressed, but he also noticed some content released by the system.

According to the information released by the system, after Gao Duo captured Jiangling, he immediately took control of Mu Chen's original body. The next script should be that the original body was captured and went north to have nothing to do with Jiangnan.But just when they were about to retreat, the wind leaked.The prefect of Jingzhou heard that the lone soldiers of the Northern Dynasty were advancing, and immediately mobilized a large army to besiege Jiangling.However, the hero led his subordinates to stand firm in the city for dozens of days, and finally waited until the soldiers of the Northern Dynasty responded, and Qianqi broke out, and the world was shaken by this...

Afterwards, the rainbow fart was completely ignored by Mu Chen, but what he paid most attention to was the performance of the hero during the siege:

"The book gave the hero a golden finger." Mu Chen said, "It said that he brought a very powerful blacksmith along with the army, melted down and recast the weapons in the city, and forged them into extremely sharp swords, which can cut iron with a flick of his hand. It's like wearing heavy armor through a mud hole. The male protagonist led his men to break through the siege at night. It is with such a sharp weapon that he is invincible and unstoppable, and he cuts a bloody path... Just a little forging, he can be sharp and invincible, which is normal Can the metal do it?"

Duan Ke was taken aback for a moment, and immediately understood what Mu Chen meant.He also took a degree in materials science during his master's degree, so he naturally knows what it takes to cut iron like mud and penetrate heavy armor.To put it bluntly, if there is really an old blacksmith who can forge such a fine weapon by hand forging, then they should invite this old man to receive the Nobel Prize... In other words, behind this magic weapon, there must be an extremely High-grade mineral deposits!

"—But." Duan Ke muttered to himself, still a little unbelievable: "From the resource distribution map of modern surveys, there shouldn't be any high-value minerals near Jiangling..."

Mu Chen shook his head.

"First, this is a fictional world, and the right to explain everything belongs to the system." He sighed, "Second, are you sure you want to reason with Goldfinger? At least the system hasn't taught you how to cultivate immortality yet."

·

Now that there are clues, it is actually quite easy to follow the clues.Considering that the plot in the book took place during the siege, it is likely that the male protagonist directly dug out the vein somewhere in the city.So Duan Ke, Liu Heng and Bei Yan formed a group to search for traces of iron ore in the city.

But the results of searching and searching were not satisfactory. They searched and searched but could not find half of the iron ore.Bei Yan shook his head and found a local blacksmith to ask about the situation.Then the blacksmith led them around to a small slope at the corner of the city wall, and pointed out to them a piece of blue-green soil under the hillside rather graciously.

"Your Majesty, when the little people forge iron, they like to take some stone powder from here, and after sifting and mixing it with forging, the ironware is often very good..."

But Liu Heng glanced at it and burst out laughing.

"It's just a copper sulfide vein." He said casually, "And it's not very good at first glance - the reserves are low, the grade is poor, and the color is so dark..."

He sighed as he spoke, but saw Duan Ke squatting down, carefully looking at the blue-green ore mixed in the soil.This is indeed a very common copper sulfide ore vein, but Duan Ke is quite puzzled: I have never heard that copper sulfide ore powder can improve the performance of ironware. Could it be that the blacksmith is lying?

He took a closer look, but suddenly felt something was wrong—the blue-green surface of the copper sulfide was indeed dark and black, and the quality was extremely poor.But if you look closely, this layer of black seems to only float on the surface...

Duan Ke stretched out his hand and tapped it lightly, and sure enough, he touched a handful of black powder.He pinched a few grains and looked at them carefully, and took out a magnifying glass to identify them carefully, but in the end he couldn't figure it out, so he could only pass it to Liu Heng:

"Look at this thing... the shape of the particles is too weird, I have no impression at all."

Liu Heng reached out to take the powder with a smile: "So I said, if you don't touch your hands for three days, you will grow thorns. You haven't seen a sample for so many years, no wonder—"

He suddenly closed his mouth, his eyes widened.

After staring at it for a while, Liu Heng took out a polarized mineral mirror from his pocket, and carefully brought it to his eyes.This time he observed for a longer time, which almost made Duan Ke a little uneasy.

"W-how?" Duan Gong whispered, "What is it?"

Liu Heng took off the mineral mirror in silence, his hands trembling.

"I... don't know very well." He whispered: "Although it is very similar, very similar - but the purity is too high..."

·

The test results came out quickly.After just over an hour, Liu Heng rushed out of his simple laboratory, waving his test tube at a room full of people.

"It's rhenium!" His voice changed: "That thing is fucking very high-purity rhenium disulfide!"

The people eating in the room looked at each other in dismay, but it was Xiang Liang who reacted the most—he stood up from Mu Chen's side with a groan, and almost jumped at the test tube in Liu Heng's hand.However, he still maintained his sanity. He finally didn't reach out to snatch it after pounced on it. He just looked carefully at the silver-white powder in the glass tube under the sunlight, but his voice changed in a strange way:

"--you sure?"

"All the tests that can be done have been done." Liu Heng's answer was extremely concise: "Basically, it can be confirmed."

Mu Chen watched from the side, confused.Given that he has been away from high school chemistry for too long, he still hasn't figured out the excitement of the geo-consultant. He can only vaguely guess what it might be, so...

"Is this...rhenium very precious?"

"Rhenium can greatly enhance the mechanical strength of alloys at high temperatures, and is a key material for civil and military engines." Xiang Liang's answer is equally simple: "It is also very useful in catalysts."

Mu Chen nodded, and probably understood that this is the metal that hangs the sky, so he asked casually: "What about the reserves?"

"The exact figure cannot be judged." Liu Heng said: "I made a rough guess with the instrument before I came, and the reserves should not be less than [-] tons. The annual output should be able to reach about [-] tons."

Mu Chen let out a cry, feeling a little disappointed in her heart - no matter how precious it is, it is only a mere [-] tons per year.It is indeed quite embarrassing and a drop in the bucket figure when I think of it...

Liu Heng could hear Mu Chen's disappointment, so he chuckled.

"What do you think rhenium is? Gold, silver, Chinese cabbage picked up all over the ground?" He said lightly: "Rhenium is the crown of engine materials and a great crystallization in the field of metals. So far, the global production of rhenium is less than [-]% a year. tons, most of which are in South America and controlled by the West.”

"In order to prevent us from developing engines, rhenium is still on the Western embargo list against our country so far." Xiang Liang said: "A few years ago, a mine with an annual output of several hundred kilograms of rhenium was discovered in the southwest, and the mining situation has not been improved until now. It's still classified."

Mu Chen opened his mouth, then quickly closed it.

"—So, if this is a small country on the earth, and there is now a high-grade rhenium mine with an annual output of about [-] tons, what does that mean?" Liu Heng put the test tube away properly, and his tone remained the same. Tranquility: "If it is said that there will be a regional war, it may be a bit too much... However, it should be very possible and quite cost-effective for the West to fight a proxy war of tens of billions of dollars."