Zhao Xin felt that he had made a mistake. He should have bowed and apologized instead of being a teacher.
"What is this?" the woman asked, pointing to a symbol written by Zhao Xingang.
"It's the Greek letter, which is pi."
"Oh, little lady, I understand, but where is Greece that sir is talking about?"
"Uh, Europe, on the Aegean Sea."
"Where is this Aegean Sea? Is Europe what foreigners call Europa?"
"Girl, we are talking about spherical geometry now."
"Okay sir, please continue."
Zhao Xin was repeatedly distracted by the woman's questions. He sorted out his thoughts and continued: "I just talked about the calculation of the area of the sphere. Now let's talk about spherical trigonometry."
Bulla Bulla spoke for almost half an hour, and everyone in the bookstore looked confused and couldn't understand it at all. The woman looked down at the paper on the table for a while, then looked up at Zhao Xin again.
"Suppose the antidiametric point of A is A' and the radius of the sphere is r. Then the area of the spherical triangle ABC is half of the area of the spherical diagonal ABA'C. Well, then it is easy to verify that the area of the spherical triangle is equal to Sigma Alpha. You do you understand?"
The woman looked at the strange and weird symbols in the article and thought to herself, I would be damned if I understood it! But she felt that the big man in front of her was really powerful. Mr. Gao Xi wrote a book, and he finished it in two pages.
"These symbols are all written in the Sila Kingdom you mentioned?"
"It's Greece."
"Why don't you use my Chinese characters to express it."
"It's troublesome. It's not easy to use. Do you understand?" Zhao Xin didn't want to mention Euclid. He was worried that the more he talked about it, the more problems he would get. "If you can use a symbol to express the meaning, there is no need to write a bunch of verbose words."
The woman looked at the two pieces of white paper in trance, raised her head and said to Zhao Xin: "Can you give these two pieces of paper to me?"
Zhao Xin was about to speak when he heard a man behind him cough, and then said: "Zhenyi, what are you doing?"
The woman turned around and said with a smile on her face: "Dad, I am asking this gentleman for advice on how to cut a circle using Pythagorean. Are you done with your work?"
"Young lady, what a shame!" After the middle-aged man scolded his daughter, he cupped his hands at Zhao Xin and said, "I am Wang Xichen of Jiangning. My little girl has offended many people. I hope this old man will forgive me."
Zhao Xin was eager to get away quickly, so he also handed over his hand and said: "I, Wang Yuanfang, can't say I'm offended. Your love is actually interested in geometry, which really surprises me. Mr. Wang, you don't have to be polite. I have something to do, so I'll leave for now."
After that, Zhao Xin waved to the steward and left.
When the woman surnamed Wang saw that Zhao Xin was about to leave, she quickly chased him outside the bookstore and said to Zhao Xin: "Mr. Wang, you didn't get the manuscript!"
"Give it to you!" Zhao Xin waved his hand without looking back.
"Where are you staying, sir? The little lady would like to ask you about spherical geometry."
After hearing this, Zhao Xin stopped and turned around and said, "Miss Wang, I will leave Guangzhou tomorrow."
The woman surnamed Wang asked slightly disappointedly: "Ah? Then, sir, can you leave me your address? I would like to ask you for more advice in the future."
"This, this, oh! I have a village in Sheyang Lake in northern Jiangsu. The current manager's surname is Xu. Just send the letter to him. See you later!"
Seeing Zhao Xin "fleeing in a hurry" with his men, the woman's eyes flashed, and she was still holding the two pieces of draft paper filled with formulas in her hands.
After coming out of the bookstore, Zhao Xin went to buy tea again. There is currently a huge demand for tea in the Fuldan City market, and the price of black tea in Guangzhou, excluding tax, is eighteen taels per load, and that of green tea is twelve taels.
The tea of this era is not polluted, it is a pure natural green drink, and the price is relatively cheap. How many kilograms is appropriate to buy?
"Let's get a hundred dan. No need to pack it into boxes, just put it in straw bags." Ten thousand jins of tea sounds scary, but in fact, it is not much for Beihai Town.
After listening to Zhao Xin's instructions, Manager Yu was already numb. This shopper often starts with hundreds of loads, and he doesn't know how to transport it later.
At this time, Gaodi Street was crowded with people, and Zhao Xin's size was extremely conspicuous in the crowd. Over the years, he had also come into contact with many Manchu and Qing officials, especially the military attachés in the prisoner camps. Zhao Xin's speech and behavior at this time looked like a banner man. Of course, if there was a bannerman military attaché present, Zhao Xin would have to reveal his identity when asked about his last name, because he really didn't understand.
It was precisely because of his demeanor and the fact that he was accompanied by the Cai family that even if some people were curious, they would just stand aside and watch.
But the bad thing is that he is so tall, he is so eye-catching!
No, Fu Ming'a, who had just come out of a Suzhou-Hangzhou grocery store, noticed Zhao Xin diagonally opposite.
"Master, that man is so tall!"
After hearing what his subordinates said, Fuming looked in the direction of his fingers, and then waved his hand indifferently, thinking that he might have been sent by some company in Beijing to handle the matter. But at this moment, a voice that often gave him nightmares suddenly entered his ears, and Fu Ming'a's footsteps suddenly stopped.
“Where do all these teas come from?”
"So that the master will know that these are all produced in Fujian."
“Oh, Fujian’s black tea is pretty good.”
Although it is winter now, the city of Guangzhou is still quite warm, with the temperature in the afternoon reaching around 20 degrees. But at this time, Fu Ming'a looked at the big man not far away, his hands and feet were cold, as if he had fallen into an ice cave!
"That's right! With this stature and this voice, it's him! God, how could this devil come to Guangzhou City?!"
Fu Ming'a belongs to Zhengbai Banner and is a defense officer under the Eighth Banner of Guangzhou Garrison, fifth rank.
Because Qianlong required the elimination of the Eight Banners garrisoned by the Han army in various places in recent years, and allowed them to gradually release their banners and integrate them into the Green Camp, so the insufficient number of soldiers was transferred from the Eight Banners in Beijing to make up for it, and Fu Ming'a was one of them. He was just transferred from Beijing in June this year. Before that, he served as a prisoner in Beihai Town for two years and dug gold mines in Solenji Island for a year. During the prisoner exchange, he returned with Li Dagang and others. to the capital.
After Fu Ming'a was captured in the battle of Furjiaha River, he saw Zhao Xin treating his wounded soldiers. After that, Zhao Xin visited the gold mine many times to inspect. Even if he was killed, he would never forget Zhao Xin. New look and sound.
The two personal servants saw Fu Ming'a's forehead sweating, his eyes straightened, and his whole body trembling. They were worried and strange and asked: "Master, are you feeling unwell? Do you want me to go find a doctor?" "
After standing still for a long time, Fu Ming'a stared at Zhao Xin wearing a Liuheyi unified hat with a small braid hanging on the back of his head, and he gradually came to his senses.
This is in Guangzhou! This is my territory! At present, the reward offered by the imperial court to Zhao Xin is 10,000 taels in life and death, and a five-level promotion.
Thinking of this, Fu Ming'a's mouth showed a sinister smile.
"You two, keep an eye on that tall man for me. Let's see where they go next. Don't alert him! I'm going to the Nanhai County Government Office. If you need anything, go find me there."
"Master, what if they leave the city?"
"Follow him to death! Find out where the tall man is."
Across the street, Zhao Xin took the receipt from Manager Yu, thought for a while and said, "I heard there are many tooth carving shops on Agate Street. Let's go and have a look."
The most famous handicrafts in Guangzhou's history are ivory carvings, jade carvings and wood carvings. Zhao Xin had heard of them, but had never seen them before.
Manager Yu rubbed his sore legs and nodded helplessly. Fortunately, Agate Street is not far from the West Gate. After walking around, hurry out of the city. This is the day for shopping!
He and Zhao Xin got on the carriage respectively, and the group passed through Guide Gate and headed north along Mishi Street.
Maybe it was because the day went too smoothly, or maybe everyone was tired from walking. At this time, no one, including the Cai family's clerk, noticed that there were two people following them not far behind.
Zhao Xin is not a spy. Although he knows some practical psychology knowledge, those are methods that are only used when negotiating with people or interrogating them. If Serdan, who was a hunter, was present, he might be able to detect someone following him; in fact, it was not necessarily the case. Serdan was familiar with the northern mountains and forests, but he was now in a city with a population of one million.
An hour later, when Zhao Xin finished shopping on Manao Street and left, the spies around him had turned into yamen of Nanhai County (Guangzhou city was divided into two counties in the Qing Dynasty, the east one belonged to Panyu County and the west one belonged to Nanhai County.)
Fu Ming'a is only a fifth-level defense officer. He has no power to mobilize troops. Now he is in a hurry, so he can only ask the Nanhai County Government for help. That is because Fu Ming'a is a fifth-rank official and a bannerman. If he were an ordinary person, he would stay where he could.
When these people followed the Cai family's carriage out of the city, they saw the carriage finally entering the office on Tongwen Street. Only then did he leave a follower and go back to report. By the time the lights were turned on at night, Tusab, the governor of Guangdong, had already gotten the news; not long after, Sun Shiyi also knew.
In the signing room, Sun Shiyi slapped the table and shouted loudly: "What a thief! How dare you come to Guangzhou to stir up trouble! Where is Fuming? Tell him to come see me immediately!"
As soon as he finished speaking, Governor Tusab walked into the room and said with a solemn expression: "Zhitai, Cai Shiwen's subordinate has asked clearly! That person will leave tomorrow."
"Leave? How can he leave?"
"Cai Shiwen didn't say that the person came unexpectedly. It is said that he suddenly appeared in Haizhuang Temple last night."
Sun Shiyi got up and paced back and forth in the room, saying nothing for a long time. At this time, an aide said: "To build a platform, we can't let the tiger go back to the mountain! We would rather kill the wrong one than let it go."
Sun Shiyi's eyes flashed, he didn't say anything, he just looked out the window with his hands behind his back. After a while, his subordinate came to report that Fu Ming'a was here.
When people arrived at the house and bowed down, Sun Shiyi turned around, stared at Fu Ming and said, "Tell me what you saw on the street this afternoon, from beginning to end, without missing a word!"
Half an hour later, Fu Ming'a, who was thirsty and tongue-tied, held up his hands and said, "I'm going to make a platform. If I make any false claims, I will be struck by thunder from heaven!"
"How many times have you seen Zhao Ni in the north?"
"I can't remember whether it was seven or eight times, but I can't forget the man who turned into ashes."
At present, General Cuntai of Guangzhou went to inspect the naval camp. Sun Shiyi was the largest in the entire city of Guangzhou. He discussed it with several staff and finally made up his mind. At present, mobilizing troops is a trivial matter. If we really want to capture Zhao Ni, it will be a great achievement. When we get to Qianlong, everything will be easy to negotiate.
"Take my token and order Lieutenant General Superintendent Biao of the Central Army to lead the men to surround the Thirteenth Office. No one can escape!"
After Sun Shiyi finished speaking, he preached to Tusa: "Master Tu, this production station has the power to control Fubiao. I order you to send Fubiao's military staff general and a thousand people to surround Haizhuang Temple overnight!"
Tusab raised his hands and said, "How will the Cai family deal with it?"
Sun Shiyi said: "They are just businessmen, keep an eye on them first. If we really catch Zhao Ni himself, he will confiscate his family and exterminate his clan, so he won't be able to escape!"
Fu Ming'a on the side couldn't help but trembled after hearing this.
When Superintendent Biao's army ordered all the men and horses to move out, Zhao Xin had just finished dinner in the office and strolled back to the trading house. When Liu Zheng saw the other person coming back, he couldn't help complaining: "Brother, you are really good at shopping!"
Zhao Xin casually handed an eight-layered ivory ball to Liu Zheng and asked, "Well, have the medicinal materials and tea been delivered?"
"It's all here." Liu Zheng took it subconsciously, looked down and said in surprise: "You gave it to me?"
"Yes, I bought it at the ivory carving shop on Agate Street in the afternoon. This is ivory." After Zhao Xin finished speaking, he said to Liu Zheng: "I'll go to the warehouse next door to take a look and count the goods."
Liu Zheng probably guessed what Zhao Xin was going to do, so he carefully took the ivory ball back to the house and put it away. He thought about going to the warehouse to help with the inventory, so he went out and went downstairs. When he reached the stairs, one of his soldiers suddenly slipped down from the ladder at the entrance to the roof and said to Liu Zheng: "Sir, something is wrong!"
Liu Zheng was stunned for a moment and did not react. He only heard the soldier continue: "A large number of officers and soldiers emerged from Tongwen Street and came towards us."
"Let's go! Go up and have a look."
The two of them climbed up from the ladder to the roof, without using binoculars, and saw a dense array of torches on Tongwen Street to the north, like a line of fire, as if someone had written a stroke on the dark street with a gold pen. Liu Zheng's heart sank suddenly, feeling that something was going to happen. He whispered to the soldier: "You keep an eye on it and report any situation at any time."
After saying that, he turned around and got off the ladder, hurriedly ran to the house where the guard platoon leader was, opened the door and said: "There is a situation! Everyone, prepare for battle!"
Zhao Xin said he was counting the goods, but he actually moved very quickly. A few minutes later, he had already come out of the warehouse. When he opened the door and entered, he almost bumped into Liu Zheng, who was looking for him.
"Brother Zhao, something happened! There are many officers and soldiers outside."
Zhao Xin was also stunned, but he quickly reacted and went up to the second floor. At this time, there were already soldiers standing in twos and threes behind the windows in various places in the building. Each of them had two pistols; an M1911 and a revolver from Beihai Town.
He walked to the window and opened the curtains to take a look. Sure enough, densely packed torches outside the building had surrounded White Bear on three sides. However, because there is a fence at the entrance of Baixiongxing, the side facing the Pearl River is not fenced yet.
"What should I do?" Liu Zheng asked eagerly.
Zhao Xin thought for a moment and said, "Let's wait and see what happens."
"How about I go out and ask? This is a commercial area, and officers and soldiers don't dare to mess around."
Zhao Xindao: "Don't go, send a servant to ask."
A servant from Baixiong Store walked out of the store gate tremblingly, walked to the brightly lit fence, bowed to several officers and soldiers, and asked tremblingly: "Master, what's going on? ?"
A military attache wearing leather armor walked out from under the torch and said: "On the order of Master Tai, we are going to capture the rebels! It has nothing to do with the rest of the gang!"
By the way, I wrote about Wang Zhenyi because she was the only unfettered mathematics enthusiast at that time. Arithmetic in the early and mid-Qing Dynasty was a family tradition, with emphasis on the calendar. Including Wang Zhenyi, these people can only be regarded as astronomers, not mathematicians at all. Many people regard becoming an official through the imperial examination as their top priority, while mathematics or calendaring are just personal hobbies. There is absolutely no chance of recruiting these people, and the mathematical terminology these people are used to is very different from that of later generations, and it will take time to accept it.
(End of chapter)
