Chapter 400: Make the best use of everything

Comparing the two aspects, self-study of mathematics becomes possible, from shallow to deep, and is very interesting.

Ancient mathematical writings mostly consisted of questions and answers. Since the solutions were difficult to express in words, they were mostly dictated and often omitted from the books.

Now there is a simple and easy-to-learn method that builds a bridge between the questions and answers, showing them perfectly so that they can easily walk from one end to the other along the bridge.

For scholars of the Song Dynasty who like to study the subtle words and righteousness of their predecessors, this has undoubtedly opened a door. As long as they are not stubborn, as long as they are smart enough and do a little research, they will know that this is another kind of poetry that is different from poetry and poetry.

beautiful.

The beauty of nature, the beauty of heaven.

The scholar-bureaucrats were actually a little embarrassed that such knowledge was in the hands of a woman.

Fortunately, there was also Su Mingrun among the scholar-bureaucrats, and this woman was still young, so she was not annoying.

…

She seemed to have seen through everything, so she took everything lightly.

She has the most meticulous thoughts, but in the most complicated palace, she does not use them for intrigues.

She is the most complicated, but also the simplest. She seems to have no desire or desire. Only knowledge can attract her attention.

She is very calm and seems to have no emotions. She only likes to discover problems, study problems and solve problems.

She seems to be ignorant of worldly affairs, but also seems to be the most knowledgeable about worldly affairs.

In the most powerful place in the Song Dynasty, she would ask for nothing without flattery; in the most powerful place in the Song Dynasty, she would be strong even if she had no desire.

In this turbulent palace, she gradually became a legend.

When Su Xiaomei returned to Cishou Palace, Queen Gao Taotao was holding the wool loop with both hands to facilitate the Queen Mother to wrap the wool dumplings.

The Queen Mother said: "Should we add a few more servants to the official family?"

Gao Taotao refused: "That can't be done."

The Queen Mother said: "But he is an official after all..."

Gao Taotao said: "My dear, back then I married into the Thirteenth Festival, but I don't know what an official family is."

The Queen Mother sighed: "My brother is actually strong and stronger than his father... My little sister is back? Why does this book seem to be unfinished? Be careful not to hurt your eyes."

Su Xiaomei saluted the Queen Mother and the Empress: "I've met the Empress, Empress, Su Rong is back. It won't hurt my eyes. My brother taught me a set of eye-protecting massage techniques. It was given to him by Taoist Zhang of the Arctic Academy."

Gao Taotao also attaches great importance to Su Xiaomei. She now understands that charity is also a kind of power, a kind of power that the harem can control.

In the court, the ministers can spit and spit on the officials, but they dare to try to slander the Queen Mother?

An old woman who is kind, loving, loves children, sympathizes with the weak, and understands the thoughts of the elderly. She is always highly respected in the Song Dynasty. Coupled with her status as the Queen Mother...

Last month, a censor suggested that charity funds should be brought under the management of the Accounting Department. I don’t know how the news got out, but the censor bullied the old lady.

Before the reputation among the scholar-bureaucrats began to deteriorate, something happened in Bianliang City.

The mule and horse dealers who rented horses to him on weekdays, the vendors who delivered vegetables, and the servants and ladies who cooked and swept the floors all drew a clear line between themselves and the unfortunate censor.

Do you want to bully an elderly person like the Queen Mother? There are sixty-year-olds in Bianjing City, and children under ten years old, although they have not received any charity? I'm sorry, I can't serve you, otherwise the old man at home will give me a pestle!

Even the farmers who collected excrement and urine walked around the house. Farmers were another large group under the care of the Queen Mother. An illustration of a farmer's proverb was overprinted with a calendar printed on papyrus. The farmers called it a yellow calendar; a large cabbage and a high-yielding radish.

The promotion of seeds, how much kindness is this?

Now the censor had to empty the toilet himself every day. He couldn't hold on for three days, so he cried and asked to be released.

Queen Gao said: "The incident in Changzhou is really worrying. A star fell from the sky, from southeast to southwest. Now it seems that it belongs to the Duanzhou defense envoy. Zhao Zi disappeared last month."

The Queen Mother said: "I think the answer should be on Western matters..."

He glanced at the younger sister and quickly pulled her to explain: "I mean there is going to be a war, not that your brother is in trouble."

Su Xiaomei smiled and said: "Didn't Si Tianjian and Yu Juguan understand through their investigation? That is a piece of sky iron. My brother said that there are many of these in India. Because the iron is pure, the weapons made of it are very sharp and tough.

It’s called wootz steel.”

"But now it is no match for Governor Gao's Shangzhou Steel. Madam, Queen, you don't have to worry, it's hard to say it's not auspicious."

The queen mother smiled at the queen and said: "My child, two days ago I said that the goldfish sent by Yuezhou were auspicious, but she said they were not considered auspicious. Then she turned around and found several kinds for me. They were all better-looking than those from Yuezhou.

It turned out that she had raised them herself since she was a child, and she kept replacing them, and finally got many strange and weird varieties."

The queen said: "I also got a vat there. I used a glass vat. I haven't thanked the queen yet."

The Queen Mother said: "I remembered that you also liked watching fish when you were a child..."

At this point, the two of them couldn't help but feel a little embarrassed. Because of a series of events such as the emperor's accession to the throne and his return to power, the feelings they had when they were children have become much estranged.

There is no family affection in the Tian family, but what the Queen Mother blurted out now moved Gao Taotao.

Thinking of those things in his childhood, Gao Taotao's eyes were a little sore, and he quickly changed the subject: "Speaking of Shangzhou, what kind of matches do you think are useful?"

The Queen Mother said: "It's quite good. The best thing is that this thing can be handed over to the elderly and disabled people in Futian Yuan. This person has something to do, so he will not lose his temper."

"A box of birthday matches costs two cents. They don't look expensive at all, but they are used in large quantities. In fact, the amount sold by the company is not a small amount. Shilin is becoming more and more capable."

The queen burst out laughing: "What kind of virtue can I not know about my own brother? How could he do this? Maybe it was the Meishan monkey who did it!"

The Queen Mother said: "You really can't talk nonsense about this matter. If you say that Shilin did it, that's his duty in the case; but if you say that it was done by the monkey, you will be impeached. A relative of the country, a

Scholar-officials, with different status, have to do different things. Alas, it will be difficult for them..."

Su You made matches, which were purely waste materials.

The lead brought from Hongjiang was mixed with a large amount of tin and antimony.

People today often confuse the three metals. Pure metal antimony is called "Lianshan Tin", which was the largest source of antimony until the Republic of China.

Of course, Su oil must be put to good use.

Lead is naturally used to make projectiles, and tin can be processed into tin pots and tin basins, which can be sold at a good price. Antimony, the simplest way is to process it into antimony trisulfide, which is used as an explosive catalyst, heat stabilizer, moisture-proof agent and flame retardant auxiliary.

effector.

Of course, a better way to use it is to make a lead-antimony alloy with lead to reinforce the lead, and then you can get a good lead movable type.

However, to show off the cultural industry in a war-torn place is to court death. Su You is very clear on this point.

The function of antimony sulfide is to make the fuze burn steadily and evenly, not too fast, so that the hand-thrown version of the Thunderbolt will not explode without leaving your hand.

As for matches, they are just an additional invention of the development of military industry.

Although matches are small, they are hard-earned. The sides of safety matches are coated with the pyrophoric agent red phosphorus, the flammable antimony sulfide, and glass powder.

On the match head are potassium chlorate, manganese dioxide and sulfur.

Manganese dioxide is available in Erlin and Ma'an Town. The oil used in Suzhou was transported from Erlin Department by the Shuzhong caravan, and the oil used in Bianliang was from Ma'an Town.

Antimony and sulfur can react directly, and antimony sulfide can be obtained by smoldering at high temperature.

In fact, this stuff can be obtained through direct physical extraction of antimony ore. Suyou sent a letter to Hongjiang, informing the mine to prepare some concentrated ore powder for future use.

Potassium chlorate is a little more troublesome. First, manganese dioxide and hydrochloric acid are used to react to produce chlorine gas. Lime is used to produce lime milk. The lime milk and chlorine water generate calcium chlorate and calcium hypochlorite in the chlorination tower.

Then the solution is sent to the chlorine removal tank to remove excess chlorine with sodium sulfide, then sent to the decomposition tank to react with potassium chloride, and finally sent to the stepwise crystallization chamber to obtain it.
Chapter completed!