[Comprehensive] The days when I pretended to be a meow in the Forbidden City

Zhou Yu's arrival, in addition to bringing himself, also brought a lot of southern specialties, except for the oranges that Xia Anran had already eaten, as well as glutinous rice, rice, and sugarcane.

Most importantly, he brought a large amount of tung oil and soldiers recruited along the way.

That's why he arrived a little later than expected.

But his actions were warmly welcomed by Cao Ying, let alone, tung oil!This is tung oil!

Yuzhou was plundered before, and Cao Cao succeeded in taking over under Yuan Shu's instruction, but the weapons in the city were left in dilapidated condition. Nowadays, the mainstream system of the local army is to bring their own weapons, so when the predecessor left office, he said The ones that were taken away were all brought by the officers and soldiers when they joined the army, and Cao Cao had no choice.

In this way, Cao Cao, who had just taken over, faced a Yuzhou that had no iron, no equipment, and no good wood.

During this period of time, although he opened up some business channels by selling tooth powder, tung oil and iron ore have always been controlled crops by the local government. Even if the asking price is high, the road to purchase is difficult.

Thanks to the tung oil donated by Zhou Yu free of charge, the once-stalled bow-making operation can resume normally.

A few days later, under Cao Cao's handwriting and Sun Ce's strong push, Zhou Yu parachuted into the position of lieutenant general of Sun Jiajun's barracks. Sun Ce has received a waist badge, which symbolizes his status.

After that, he adapted to the training of Sun Jiajun at an extremely fast speed, and was far ahead. After March, when Yanzhou entered winter, he had been completely accepted by Sun Jiajun.

During this period, Xia Anran was very busy, he was eager to hoard food, herbs and herbs for the whole army to spend the winter, and prepare for possible wars in the spring.

At the same time, he is also responsible for this year's winter wheat planting.

Because Yanzhou's geographical location is slightly southerly than Chenggao, the weather this year is warmer, so the planting time of winter wheat can be slightly delayed, and it does not collide with other work.

The common people have already tasted the benefits of continuous planting of wheat and beans, except for a few who refused to change, most of them chose to plant winter wheat, and at this moment, Xia Anran discovered a problem.

Their selection method is too rough!

In addition, many farmers did not follow the pretreatment he taught to prevent subsequent smut.

The main reason for this is that the planting of wheat has only just been promoted. Compared with corn that has fewer diseases and can still be fed with extensive care, wheat is undoubtedly much more delicate. Its grains are large and its starch content is high, which will inevitably attract more There are a lot of bacteria and pests, but before these things are really encountered, no matter how much Xia Anran talks about, the farmers still won't pay attention to them.

After all, they haven't experienced the hopelessness of losing crops due to disease.

They can ignore it, because this year's continuous planting and the promotion of fertilizers have given them the confidence to survive more than half a year. In their minds, even if the winter wheat harvest is not good, there are still soybeans to support them.

But Xia Anran didn't, and neither did Cao Jun.

Today's Cao Jun still has to pay taxes and grains to the imperial court normally. Although he changed to collect twice a year through a tricky model, he also used some "barren land" that has not been registered, but compared with other states and counties, he does not pay any grain taxes. , their remaining food is still a little thin.

Moreover, although Cao Cao has a rich man's father, except for the reputation of "after the official" and the initial money investment that Cao Song gave his eldest son, he is currently completely on the sidelines. Besides, even if he gives his son money, Now that the coins are abolished, these coppers can only be melted to make stirrups.

... Oops, it seems that I accidentally revealed Xun Yu's secret.

Cough cough, in short, Cao Jun is really poor now!No food, no money, no iron, no one!

If Xia Anran was in the shape of a cat, her tail would droop.

He is now in a state of anxiety every day, and the biggest problem is the lack of iron.

China is rich in iron ore, but lacks countries rich in iron ore.

Iron-rich does not mean that there are more iron ores in this mine, but that the iron content is higher, which is approximately equal to less impurities.Most of the iron ore in China has a lot of impurities, and the direct result is that the smelted steel is more brittle than usual. One way to remove impurities is to add carbon, oxygen, and alkalinity. A substance prompts it to undergo a chemical reaction.

How bad is the quality of China's iron ore... In the words of later generations, the iron ore produced by China's rich iron ore is about the entry-level of an Australian steel plant.

But even so, the Zhonghua family still used their own wisdom and skills to create many famous swords handed down from generation to generation.

As for iron ore, Xia Anran can only remember the two main production areas of Anshan Iron and Steel and Panzhihua. He is not a professional or a professional in other fragmentary small iron ore mines, so naturally he will not remember them.

It's just that as far as he knows, there is an iron production area in Xingyang, Chenggao, but if Cao Cao dares to touch the iron mines there, he can be regarded as a traitor.

Without him, that place belongs to Sili. Although the capital has been moved to Chang'an now, Sili's status is still extremely sensitive. Even in the later period of warlords in history, except for Cao Cao, who held the emperor to make his ministers have official status, other princes No one dared to stretch their claws there.

poor.

Xia Anran let out a long sigh, she almost lost her hair in worry.

And he remembered that next year and the next year would not be a good year, with frequent earthquakes, droughts, and locust plagues. At this time, farmers are still not interested in breeding.

He was a little impatient, obviously, his attitude affected other colleagues, and soon someone came to ask him what was bothering him, and when he said what he was worried about, he got a slightly surprised expression from the other party.

"Jingxi, you are the master bookkeeper here, you only need to give orders, and you don't need to ask for their opinions."

Xia Anran was stunned, he was a little dazed, and only then realized that his modern thinking had not changed.

In this era, he doesn't need to explain why he should do it, he just needs to give an order: you have to do it, and that's it.

After a while, he sighed slightly, "Thank you Zhicai, An Ran understands."

The next day, Xia Anran ordered the counties to strictly adopt the seedling raising system, and the seeds that go to the ground must be selected, and the method of seed selection will be issued together, and the county magistrates will supervise them.

His rare toughness made everyone a little surprised, but Xun Yu and the others expressed their joy. Their mood at the moment is a bit similar: My son has just grown up, and the son of the family has finally shown his fangs. .It was comforting.

Although she still looked soft in front of them, Xia Anran gradually became more and more like an officer in front of her subordinates.

The direct result of this change is that everyone used to call him Master Xia, but now most of them are Master Xia.

Because Xia Anran knew that the next year would be a disaster year, and the grain harvested next summer would be extremely precious. In order to ensure the harvest next year, he had extremely strict requirements for the selection of seeds this time.

Chen Gu doesn't want the ones that float on the water, and he also added a lot of salt to the water to increase the buoyancy of the water. This is the cheapest way to select good seeds.

The reason is simple, the better the seeds, the higher the starch content and the heavier the weight.

In other words, the heaviest seeds are not necessarily the best, but the lightest seeds are definitely not good.

After his screening, only one out of ten of the grain that the villagers planned to keep as seeds was left behind.

The villagers had to go home and take the stored grain to test again.

It's not that no one has no complaints, but because of the wheat field incident last year, Cao Cao's prestige reached the highest in Yanzhou, and Yuzhou has also heard of it.

In addition, many of them are still cultivating land for Cao Cao. Since it is Cao Cao's land, how to choose it is naturally up to him.

These wheat seeds soaked in salt water were washed and dried. According to the number of good seeds brought by each person, sulfur powder was distributed from the top. After stirring, they were mixed together and went to the field. Because of the strict requirements of Shangfeng, when they went to the field, the county pavilions A small official was sent to follow the villagers to sow.

If anyone is found out, the wheat has not been processed, the people have withheld sulfur powder in private, or there is a county kiosk that has not distributed sulfur, they will be ordered to rectify, and in severe cases, they will be fined.Officials were immediately dismissed.

Especially those disaster victims who helped Cao Cao Cao Cao to farm, once discovered, they will be severely punished.

In this way, most farmers in Yanzhou and Yuzhou have adopted this method to sow wheat, and a small number of them are basically the fields of aristocratic families and big clans. Since these families are private property, the government is not easy to interfere, so they mainly advise them. Don't listen, I really can't control it

On this day, Xia Anran rode a little donkey between the ridges of the field. The wheat seeds had just been sown and hadn't germinated yet, so the ridges of the field were naturally bare.

Nowadays, besides wheat, many people spread some pasture seeds on the wasteland and let them grow on their own. Under the vigorous publicity of the government, farmers already know that alfalfa can fertilize the fields, and the little officials sent to promote it said that they would plant alfalfa. In five years, this piece of land can be turned into a good-quality farmland without any maintenance.

Although the farmers don't believe it, in this era, people can get rewards for reclaiming wasteland, and the tax rate for the output from the wasteland is relatively low. No matter how bad it is, the pasture can also be given to the government. In order to encourage farmers to use the wasteland , The purchase price of alfalfa is quite high.

So now Xia Anran took a look at the past, the farmland was bare, but there was some green in the side.They were all alfalfa that had just been sown this fall.

This made him feel quite happy looking at these fields, and he could think of next year's harvest.

He rode on the little donkey and let the little donkey walk slowly.

These days, Cao Cao has set up overturned wagons in Yanzhou and Yuzhou where it is inconvenient to get water, and set up water trucks in a small number of places where there is a drop. Drawing on the previous lessons, these overturned wagons are designed to be switched between manpower and animal power. , in case there is no animal power, manpower can continue to work.

The increase in irrigation conditions has also made it easier for farmers to reclaim their fields. Therefore, although Yuzhou has just experienced a military disaster this year, the reconstruction of Yuzhou, which can be spared, is very fast.

Moreover, this is a large agricultural state. Although it has been trampled on, the farmland is still sorted out very quickly.

As he walked, he took out the notebook he carried with him.

Came today to find a place to drill a well.

Since he knows that a drought is coming, and he also knows how much the impact of this drought will be, of course he will try to find ways to alleviate the negative impact

The easiest way to face drought is to drill deep wells

It is impossible to guarantee the original production only by relying on groundwater, but at least it can guarantee drinking water for residents.

If it is a rich well, it can also be used to irrigate the fields.

Hmm... Let's put it this way, let's organize everyone to plant corn next year. Corn is more resistant to drought. If well water is used to save the emergency, the yield of corn should still be guaranteed.

Just how to tell Xun Yu?Do you want to say that you can judge it by looking at the weather?

Xia Anran was thinking while walking, when he suddenly heard a pop, he followed the sound and saw that it was the little donkey's hoof stepping on a pile of poop.

Xia Anran was silent for a while

In the case of humans and animals, manure is extremely important farm manure, this kind of situation is really not very common.

In fact... this is an era when the countryside is cleaner than the cities. Except for most of the extremely prosperous metropolises, some small cities have quite troublesome sewage treatment, and the phenomenon of defecating everywhere is inevitable.Even in modern times, when there are many public toilets, there are people who defecate anywhere in order to save effort.

Not to mention the Eastern Han Dynasty without public toilets.

On the contrary, in rural areas, when most farmers have the desire to defecate, they will try their best to go back to their homes anyway.

If they couldn't bear it halfway, they would quietly go back to get the tools after finishing their convenience in one place, and then take this thing back.

But what?Occasionally this happens...

He didn't care too much and resolutely wrote and drew on the paper until not long after, he heard this sound again.

This is a bit strange. He looked around and saw that there were many poops distributed within a distance of less than 200 meters.

Um? ! ! !

He hurriedly let the donkey take a detour. Along the way, the amount of poop in this piece of poop was really too dense. This situation was obviously not caused by accident. It should be caused by an army marching past.

Generally speaking, when the army is stationed in the camp, in order to prevent the excrement from rotting, causing diseases, and attracting mosquitoes and flies, if they are stationed for a long time, they will build latrines, especially when defending the city, it will also attract moat water , It is convenient for soldiers to wash away excrement when they are convenient on the city wall.

No matter how bad it is, at least dig a hole

In such a purely open-air situation, it should be a quick march.

Xia Anran looked at the simple map. His current location is still in Yanzhou, and there is still a certain distance from the border. If there is no accident, the people passing by should be local Yanzhou soldiers.

Since they are Yanzhou soldiers, why did they suddenly march in such a hurry?He was a little curious, but he didn't think too much about it. After all, it had nothing to do with him.

Xia Anran walked all the way back to Changyi. He circled several places where there might be groundwater, and handed them over to the craftsmen for them to explore.

The reason why she went to look for water sources in this season was because Xia Anran had heard of a very simple way to identify them.

That is the place where other plants have withered, but it grows well here, so there is probably groundwater.

In the same way, spring only sprouts here, or there are more plants here.Because plants are usually more sensitive than humans.

Of course, there is another situation that is completely opposite, that is, plants are easy to wither and grow wilted for a long time. If saline-alkali land or strong acid or strong alkali soil is excluded in this kind of place, deep digging must be done.

If there is no accident, there is basically groundwater here, and the reserves are extremely rich. Because of the abundance of groundwater resources, the roots of plants will be soaked in water, resulting in hypoxia, which is not conducive to plant growth.

In short, if there are abnormal places, you must read more.

The craftsman led the way.

During the experiments of the craftsmen, Xia Anran led others to make a simple well digging tool.

Today's well digging methods are too dangerous, especially requiring a lot of waste of human resources.

There is water in the ground, not necessarily shallow water. Xia Anran's goal this time is deep water. Shallow water is too affected by the weather. Just like this time, if there is a drought, the shallow water is likely to dry up, but bear in mind Laminated deep water will not...

To excavate the water in the confined layer, it is obviously impossible to rely on today's equipment. This kind of water is basically buried below 500 meters, and today's manpower can dig to 100 meters is the limit.

Only rely on tools.

The Palace Museum once held a joint exhibition with the Zigong Salt Industry History Museum, and Xia Anran saw the only and most complete set of ancient drilling and repairing tools in Chinese history at that time in the world.

Using the self-weight of the movable pulley, fixed pulley and chisel, and the impact of the free-falling drill bit, the rock is broken and the well is continuously deepened. This technology can drill underground shafts up to a thousand meters deep.

This way, until now, is the main utilization method of oil extraction.The difference is that through the upgrading of materials, it can drill deeper underground.

This technology was invented in the Northern Song Dynasty because the mineable resources on the surface were almost exhausted at that time, and craftsmen had to develop deep underground.

This technology is more than 600 years earlier than similar foreign technologies.

Because it is very interesting, Xia Yang still remembers how to build this thing

But the biggest problem is still: no iron.

The diving layer is usually underground, far from trying to break through the hardness of the rock, naturally only iron can be used.

And to form such an impact force, it must be a shovel or chisel cast from a large iron block not less than 200 kilograms, and it must be produced by constantly changing angles.

Xia Anran was thinking while drawing the design.

He didn't ask for 1000 meters, at least 500 meters, um... Or just use the reason that groundwater has high mineral content and is more suitable for quenching steel to persuade the immediate boss to allocate funds?

Just as he was thinking this way, a child's voice calling him came from the door, Xia Anran followed the sound, and immediately laughed, and saw a young boy wearing a work robe standing at the door holding documents.

Although he is his student in private, Zhuge Liang is still a staff member of Yanzhou Workshop, so Zhuge Liang still has to go to work during the day.

He beckoned for young boy Liang to come in. As soon as Zhuge Liang came in, he saw Xia Anran drawing with a pen and ruler. He hesitated for a while, and wanted to ask if he could watch, but his teacher didn't care to put himself in the painting. The painting was handed over.

The teacher is so unsuspecting!

Zhuge Liang, who didn't know what Xia Anran's office meant until after apprenticeship, thought so, but he still took the drawing paper with his hand honestly, and frowning deepened the more he looked at it.

This thing is not complicated, a heavy object hangs under the bracket, and is pulled to a gear by several ropes... He can understand all of this.

I just don't understand what is the string of round things in the middle?

It looks like a pulley, but why are there so many pulleys?

Yes, the Eastern Han Dynasty already had the concept of a pulley, but what Xia Anran wanted to create was an evil existence called a pulley block. This thing once dominated Xia Anran's junior high school physics textbooks. The brain-burning level can be said to be a milestone in junior high school physics. .

But Xia Anran was a little thankful, the teacher who wrote the junior high school textbook, included the pulley set in the junior high school textbook, so he would use it now.

It is effortless to change the direction of the fixed pulley.

The movable pulley does not change direction but saves effort and distance.

The combination of the two can change the direction and save effort.

Apparently, the concept of the pulley set confused the bright boy, so Xia Anran asked a craftsman to make a simple pulley and assembled it for the bright boy to try. But after he figured out the principle, he immediately widened his eyes and said to Xia Anran, " Teacher, if this pulley is assembled on the Han crossbow, can it reduce manpower consumption?"

of course can.

Xia Anran silently glanced at him and sighed.

He had thought about this problem a long time ago and suggested to Xun Yu.

But Xun Yu gave him a concise answer without even raising his head - no iron.

The pulling force required by the Han crossbows defending the city is extremely high. The use of pulleys can indeed reduce manpower consumption, but to transmit such force, the pulleys must be made of iron.

Instead of wasting precious iron ore to make this labor-saving pulley, Xun Yu would rather save the iron to make knives.

What are you thinking!There are tens of thousands of soldiers and horses in Cao Ying's tent, and the weapon penetration rate is less than 70.00%. Many soldiers are armed with weapons transformed from farm tools.

Even if weapons are popularized, there are still armors!Do you want to make armor? !

Even if weapons and armor are popularized, there are still horseshoes.

When horseshoes are popularized, there will be farm tools.

After hearing this answer, Zhuge Liang and Xia Anran showed exactly the same expression at that time. If I had to describe it, it would probably be——poverty makes me unhappy.

After clearing up his expression, he saw Xia Anran's regretful face again, and the boy Liang gently grabbed Xia Anran's sleeve, "Teacher, Liang will definitely not let you worry about iron ore in the future."

Hearing this sentence, Xia Anran was so moved that she said, "Okay, teacher is waiting for Ah Liang!" while hugging the soft little Wolong into her arms.

The little boy is really so obedient and so healing!

Xia Anran was so touched.

Just when the two masters and apprentices, whose creativity was limited because of lack of iron, huddled together to keep warm, Xun Yu, who rejected their suggestion, was receiving an order from Cao Cao, which was invited by Cao Cao from Emperor Xian.

In Emperor Yu Xian's view, this might just be an insignificant request from the loyal minister Cao Aiqing, but for Yanzhou and Yuzhou, this would be a huge change.

This decree allowed Cao Cao to build the first library in the name of the Great Han.

The books he used were copied from the collection of books rewarded by Emperor Xian.

This library was named "Dahan Library" by Emperor Xian. Yes, Cao Cao asked Emperor Xian to give it the name in the memorial.

It's just that the world's first library, which left a deep imprint on later generations, only had a pathetic collection of less than a hundred books at the beginning...

A large part of these collections are books written silently by Cai Zhaoji.

In order to attract the masses, these books are basically based on basic books, such as "The Analects of Confucius" and "Tao Te Ching", etc. Cao Cao also specially selected some geography and tourism that are more interesting to read.Of course, in order to attract readers, there are also some more precious books in it.

Among them, the only thing that can be borrowed is "Encouraging Learning"

Because this is the only book made by printing, the rest are all handwritten.

The highlight is naturally that the books in the library are all made of precious "paper" instead of bamboo slips.

Anyone who has a Yanzhou or Yuzhou household registration can borrow "Encouraging Learning", and the library itself is open to every Han Chinese.

Of course, because there are only more than 100 books that can be read in total, only 100 people are allowed to enter each time, and drinking water is provided for free, but since meals are easy to stain the books, eating is prohibited in the library.

In addition, students can also rent pen, ink and paper at the cost of copying books.

A book can be exchanged for a plate of ink and five sheets of rough yellow paper, but you need to bring your own pen, so that you can extract the most essential points and take it home.

Such a price can already be said to be extremely cheap.

And copying the book means that you can read the book before anyone else!Most importantly, if there are no mistakes in the books that I transcribed after checking, they will be placed in this library.

This means that everyone who comes here in the future will see the book he transcribed!

Although the content was written by the ancestors, the handwriting is my own!

--no.

Their ideas were quickly dismissed, and the officials in charge of the library told them very coldly that all fonts should use easily identifiable Zhengli, and fonts with their own styles cannot be used.

"This is for the convenience of later people to read."

"It is also to avoid misreading due to fonts, so please be sure to follow suit."

--All right.

The student who came to consult was somewhat resentful, and he was quickly pushed away by those who came later to inquire. The clerk in charge of answering questions was so busy that his mouth was dry, and he didn't even have time to drink water until he was replaced.

And the little official who was replaced was quickly overwhelmed by the crowd.

The public's enthusiasm for the library has exceeded everyone's expectations, probably because the precious paper is free!

In today's era, people mostly calculate how much I can get, and rarely calculate how much I pay, and whether the pay matches what I get.

Generally speaking, as long as they get enough, they will ignore the effort.

For example, at this time, what the students saw was that I could get five pieces of paper!As for copying books, in this era when books are monopolized, this is not paying at all, it is getting!

The library has not yet opened, and the students who sign up to copy books will step through the threshold of the office!

When the little official reported this grand event, Xun Yu and Xun You were drinking tea and playing chess. When the little official retreated, Xun You threw the chess piece into the box, and the two exchanged glances.

The field is open.

Next, you have to pick up the tricks.

The author has something to say: Jiangmi is glutinous rice!

Sugar cane is sugar cane.

Everyone in Cao Jun: Zhou Gongjin is a local tyrant from the south, he has tung oil, everyone rushed to hug his thigh!

The salt water seed selection method was invented by the ancient people. By adjusting the buoyancy of the water, the heaviest seeds are selected. Of course, the remaining seeds will not be thrown away, but will be planted in inferior fields according to the selected ratio. The poor ones will be eaten, because the seeds that have been soaked in water are not easy to preserve.

Most of the iron ore discovered in China so far is of poor quality, with too many impurities, especially sulfide, which is very brittle.At present, it seems that there are only a dozen ore-rich iron mines?I don't remember much about this!So the ancient craftsmen were really amazing, relying on technology to remove impurities.

Not to mention the sanitation of the city... Ahem, the ancient cities were not very hygienic, it seems that it was better in the Tang Dynasty.

But the poop in the countryside will indeed be brought back by itself after it's over.

Deep wells are basically 1000 meters underground. In fact, shallow wells are polluted. The state still recommends not to drink if the water quality has not been checked. Now deep wells also say not to drink, because you don’t know if there is any factory nearby that discharges sewage to 1,5 , 2KM or [-]KM underground.

Xia Miao actually doesn’t remember the name of the drilling method (did anyone find out the name at all? HHH) It’s called percussive drilling and drilling method. It is unreliable when it was invented to crush the rocks and soil on the ground under the force of the acceleration of gravity. Anyway, it is recorded in the Southern Song Dynasty, because the resources on the ground were exhausted at that time.

It can only be developed underground. This is really remarkable. At that time, this technology was used to get 1000 meters underground. The average well is basically more than 100 meters, and there is a whole set of salvage process.Although this technology is not well-known, in fact, I think it is no less than the four great inventions.

Rub your hands together.

By the way, due to the geographical environment, the Eastern Han Dynasty was still an era when minerals were basically exposed or buried in shallow layers (it is difficult for us to find ore now because all the easy-to-dig ones have been dug out). It is said that it is a place where oil can be dug out with a single stick Times... ahem.

It's so pitiful that there is no iron to stump Xia Miao + Liang's little boy!

The library was conceived by the counselors of Cao Ying, not Xia Miao. The concept of a library existed in ancient times, but the concept of a public library did not.

Why go to the library first instead of the school?

...Because it's too complicated, I won't talk about it in the essay, so as not to take up the number of words in my text (hey)