Seeing Wu Kang giving face like this, Xu Sanjiao smiled and pulled his arm and said, "Let's go in together."

When I walked into the dilapidated courtyard, I saw the dilapidated courtyard. Two main rooms and one wing room, and the roof of the wing room was still rotten. Two five or six-year-old ladies squatted by the door of the main hall, each holding a bowl of soup cakes, which were boiled noodles. When I saw strangers, I lowered my head restrainedly.

A moment later, an old man walked out, at age of forty, was energetic and strong, and followed Xu Sanjiao and his wife. Wu Kang took two steps and bowed respectfully to greet him: "Wu Er had seen his father-in-law and came to the door empty-handed temporarily, which made his father-in-law laugh!"

"Erlang, please give up the gift." Mr. Xu quickly stepped forward to support him, and was quite flattered: "It's good that Erlang can come, don't have to take anything! Sanlang is in your office, and he also wants to ask Erlang Duoduo to discipline him."

After a few noisy words, Wu Kang got to the point and said the purpose of this trip: "I want to build a kang at home, and I also ask my father-in-law to help me. The construction period is relatively tight and I need more craftsmen. Please help me with the help of the work. I can pay 500 wages first, and then 500 after the construction is completed."

The Xu family was obviously stunned and shocked by the huge money he made. They worked hard for a year and could not save enough money. Xu Sanjiao wanted to speak but stopped talking, but now he didn't have the share of his words. Mr. Xu pondered for a moment and said, "What is the fire kang Erlang said? I have never heard of it, nor have I seen it, for fear of delaying Erlang's work!"

Wu Kang was a little embarrassed, as if the Tang Dynasty didn’t have this thing, he laughed and said, “It was me who was negligent. The structure of the kang is very simple, and my father-in-law is definitely competent. Please move to my house, you will understand as soon as you say it!”

The father and son of the Xu family stopped asking more questions and left with Wu Kang. When Xiao Cui saw the guest, she came over to say hello immediately. After a greeting, Xu Sanjiao called out "Second Sister-in-law", and almost cried.

Wu Kang didn't say anything, so he took everyone to the west wing room and pointed to the west wall of the road and explained: "Three feet away from the west wall, two feet high walls are built with blue bricks, and the partition is opened in the middle. The wing room is about three feet long and is divided into six partitions equally. In the middle of the front of the partition, a small door is opened against the ground, and the small door is one foot high and half a foot wide; on the wall behind the partition, a chimney is built."

Mr. Xu thought for a while and said, "I think Erlang wants to build a stove. I just need to build nine at a time. Isn't it too many?"

Wu Kang shook his head and nodded again, explaining: "It's similar to the stove. There is no iron pot on it, and cover it with bluestone slabs. Then build half a foot high, lay a layer of loess, lay green bricks on the loess, and cover the wooden boards on the green bricks. The kang is finished!"

Mr. Wu stroked his goatee, his eyes were a little confused, and he pondered for a moment: "The work is not difficult, and the money is probably not enough. We need to find the loess ourselves. We need to buy blue bricks, bluestone slabs and wooden boards. We always have to buy materials that are not enough!"

Wu Kang couldn't help but smile and said, "The father-in-law misunderstood. That has always been just wages and certainly does not include materials. What should I buy? Just ask the seller to send it to him. Ruyan will pay the bill with them... Ruyan, how much money does the family still have?"

Ruyan said: "There are about thirteen guan left. Early this morning, Cui Wulang sent someone to send ten guan, saying that he was buying Langjun's "Thirty-Six Strategies". What is the Thirty-Six Strategies? It seems that our family doesn't have it?"

Wu Kang couldn't help but be stunned. Old Cui was in Wuzhou with his hands and eyes. He mentioned casually yesterday and came to him today?

The so-called Thirty-Six Strategies were well-known to later generations, but they are actually a summary of classic battle examples. To put it bluntly, they are hot and hot. The term "Thirty-Six Strategies" was found in the Southern and Northern Dynasties, much earlier than the time of writing.

"Thirty-six strategies, leaving is the best strategy" comes from Huihong's "Lengzhai Night Talk" in the Song Dynasty. As this sentence became more and more popular, some people collected books and compiled the "Thirty-six strategies". As for when and who compiled it, no one knows.

A book sells ten thousand yuan, and it is a business that can make sure to make a profit! Or do you want to copy a few books and become a porter of ancient and modern literary masterpieces, and sell it to Cui Kaizi to make a fortune? After careful recollection, it seems that the one that can be fully transported is only thirty-six strategies!

He cursed himself and said that plagiarism is harder for physical education teachers than making glass! It is better to cover the kang first and hatch the eggs into chickens. Thinking of this, I asked Mr. Xu: "How much does a plasterer earn if he does a day's work?"

Mr. Xu replied: "This is not accurate. The generous person gives five quotas, the stingy guy gives two quotas, and the ordinary person gives three quotas."

Wu Kang nodded and said, "My father-in-law is looking for more helpers, each person costs five cents a day, and he will take care of another meal at noon. I want to stand up the kang as soon as possible. In addition, I also ask my father-in-law to find a carpenter to create some wooden boxes, three feet long, two feet wide and four inches high."

Mr. Xu responded and continued: "There are many plasterers and carpenters in our street, so there is no need to find people outside. Since Erlang trusts me, I will take over the work. I will notify the craftsmen later to buy materials together and start work tomorrow. I promise Erlang that the work will be completed within ten days!"

"I feel relieved if my father-in-law says this." Wu Kang was very satisfied. This street is full of craftsmen. He turned around and said to Xu Sanjiao, "Sanlang goes home and stays for a while. I will ask your sister-in-law to help clean it. Let's go back to the state yamen together."

He personally sent the Xu family and son out of the door, went back to the bedroom to change clothes and wash. Ruyan helped him tie his hair bun, and said while combing his hair: "Langjun, the man is too talkative, what a good house in the west wing, why bother? What is the use of a kang?"

Wu Kang thought about it and said to the truth: "The kang is actually a bed, a bed that can be used to keep the fire warm. Every winter when it is cold, there is no cotton coat or animal skin to keep the cold.

For poor families, they rely on a fire kang to keep warm and live through the winter! If every family in the northern region has a kang, many people will be killed by freezing in winter."

Ruyan thought about it, but still didn't understand: "Maybe the husband is right, but the winter in Wuzhou is not cold, so the extra bed and quilt are over. There is no need to spend a lot of effort to build a kang. Besides, the three of us can't sleep with such a big bed!"

Wu Kang gave a thumbs up and praised with a smile: "Yan'er said it well. The fire kang is in the Jiangnan region, and it is indeed useless. However, our kang is not a sleeping person, but a sleeping chicken... a hatching chicken. In my hometown, many rural areas with insufficient electricity... are incubating chickens with this kind of local method."

"Hmph, my husband coaxed Nunu again." Ruyan pouted and expressed dissatisfaction: "The old hen held a nest to warm the chicken, which has remained unchanged for thousands of years. Muzhou and Wuzhou are next to each other. Although I am ignorant and know a little about Muzhou, I have never heard of a kang there, nor have I heard of a kang there using a kang there to warm the chicken there!"

"Muzhou is the hometown, not the hometown." Wu Kang was afraid that she would go to the bottom of the matter and changed the topic: "The core of hatching chicks is temperature, which is what we call calories. Human calories are not as high as hens, so they cannot hatch chicks. If the heat of the kang meets the need for chicks to break their shells, they can hatch chicks without hens."

Wu Kang hesitated a little and thought for a few seconds before saying, "If our fire pit is fully fired, at least a thousand eggs will be hatched, and temporarily calculated at 30% of the loss, the chicken will be 7 white. Excluding the 20-day firewood money, how much money can you earn from hiring workers?"

Ruyan picked it up: "One penny for an egg, one chicken, ten penny for a chicken, seven stakes of money. After removing the wood, almost six stakes are left. Hehe, if we follow the husband's words, we will get rich! More than six stakes a month, seventy or eighty stakes a year!"

Wu Kang smiled and said, "Yaner doesn't have to forget about labor, and hiring workers also has to spend money. It's probably more expensive than buying firewood!"

Ruyan smiled all over her face, and said while holding her hair bun: "A wise man will make mistakes, but the man didn't think about it carefully! Hatching chickens is our money tree. Of course, we can't hire outsiders, and we can't learn from them. Let's go to the market to buy slaves and let them hatch chickens, so that they can't make mistakes!"

Wu Kang didn't react for a while, and he nodded for a long time. He almost forgot that there were slaves in the Tang Dynasty. When he was a child, he watched a TV series called "Kunlun Slave", which was about slaves from the Tang Dynasty. They had a very low status and their master killed them for no reason and only had to serve a year of labor. If they committed a crime, the master did not let the yamen handle it and killed them privately, and only had to be beaten to a hundred major boards.

Born in the new era, Wu Kang was somewhat difficult to accept, but he was not too confused. Each era has its own rules of the game. Thinking of this, it was like buying slaves by default, and began to think about the difficult and numb core issues, how to measure and control the temperature.

Control it well and solve it. If the temperature is high, it will be cooled down by moving a few pieces of ice. If it is low, it will cover two layers of quilts. Temperature measurement is more difficult. Later generations have thermometers, which can be bought for a few dollars. But where can I buy them in the Tang Dynasty? As the saying goes, it is hard to cook without rice. Not to mention that I am a physical education teacher, even Galileo, who invented the thermometer, has to be fooled even when traveling to the Tang Dynasty!

After thinking about it, only artificial feelings remain. Later, there was an aunt in the village who opened a clinic for more than 30 years. She had a special skill and never used a thermometer to measure the body temperature. If you put your fingers under the patient's armpit, you will know how much burned you. It is precisely comparable to a thermometer, with an error of up to 0.1 degrees. To put it bluntly, practice makes perfect. If you feel other people's body temperature all day, you will naturally be abnormally sensitive.

Thinking of this, a flash of inspiration flashed in my mind and asked Ruyan who was wearing the jade hairpin: "I heard before that our ancestors, during the Southern and Northern Dynasties, proposed to measure the heat in people's armpits and determine whether the patient has fever. Normal people's armpit temperature is 37 degrees, and the best temperature for hatching chicks is between 38 and 39, which happens to be the temperature for people to get fever. Are we..."

Ruyan was stunned for a moment and laughed: "Nu Nu understands, your husband is so smart! The doctor often treats people with diseases, and his grasp of calories is much better than ordinary people. Nu Nu will go out with Xiao Cui later to see if there are doctors in Nu Library and buy as much as you can. This can kill two birds with one stone. Usually, he hatches chicks and occasionally treats us!"

Wu Kang nodded repeatedly, but unexpectedly, he could get into a high-ranking private doctor in the Tang Dynasty. He stood up and tidied his face in front of the mirror. Dined Ruyu's forehead and said, "I want to go back to the yamen. Be careful when you go shopping. It doesn't matter if you can't find a slave doctor. I'll ask Cui Wu or others for help. There is another thing, buy some paper and pens, and I will dictate you to hold the pen, get out the thirty-six strategies, and I will send it to Cui Wu tomorrow."

Ruyan smiled playfully and bowed, saying, "According to the order of your husband, let's add fragrance to your red sleeves to write books tonight."

Wu Kang clicked her forehead again and left home to find Xu Sanjiao. He was absent-minded all the way, and his mind was full of thermometers. On the way, he passed by the jade shop and was the one who was deceived by a liar. Suddenly, he suddenly realized and thought about the possibility of making a thermometer.

The only transparent things in this era are natural crystals. Later generations like to watch science and education channels. Those "archaeological" experts once excavated exquisite crystal necklaces in the ancient tombs of the Tang Dynasty. This means that in the Tang Dynasty, they had the ability to drill holes for crystals. Boss jade first made holes in the crystal, and then ground them into thin sticks, and then could make a thermometer by himself.

The basic idea is: buy or customize a mini vase, insert the crystal tube into the bottle plug, seal the bottle mouth and fill it with water. Using the principle of heat rise and cold shrinkage, first place the vase in boiling water and mark the water level in the crystal tube, which is one hundred degrees. Then put it in the ice water mixture and mark the zero-degree water level. Try to divide the scale evenly in the middle, and a simple thermometer will be done.

The more I think about it, the more I feel it

It was feasible, so he turned around and walked into the jade shop. The jade boss was very enthusiastic and personally served tea and poured water. Wu Kang was straight to the point and told him how to make the crystal tube, asking him if he could make it, and at the same time said: Money is not a problem.

Boss Yu thought about it for a long time and only expressed his efforts. He used to drill a crystal necklace before, and the success rate was 55% open. If he penetrated a long hole, he had to have a large piece of crystal, which had a lower success rate. As for the crystal grinding of a thin tube, it was no problem.

Wu Kang was extremely excited after hearing this, so he made him feel at ease and bold, let go and take responsibility for all losses. After all, it is not necessary to do scientific research.

I left the jade shop and continued to go back to the state yamen. I thought that before I was building a thermometer, I had to rely on people to feel the temperature. I hope Ruyan could buy a slave doctor. When I walked to the gate of the state yamen, I met a messenger who had been waiting for a long time, Cui Wu sent a letter. I gave the messenger a few tips, and replied to the bad guard and greeted the subordinates. I went back to the office and closed the door, and opened the thick letter.

In the beginning, all the four conditions I put forward were approved by the Wuzhou boss. After all, Kaiyuan Tongbao will definitely lead to the road, and it will definitely be unfavorable.

First of all, the preparations for the ice making factory. The second-generation official troops were divided into two groups, looking for suitable ice making locations and ice making saltpeter along the way. They were all smart people, and they would rather go to Muzhou, Kuizhou, Hangzhou and other places than to acquire saltpeter in Wuzhou, for fear of leaking news.

Wu Kang expressed his understanding that making ice in saltpeter is just a layer of window paper, which is not technically difficult at all. He wrote back to Cui Wu, saying that he was the boss and that everything about ice making was fully represented by Ruyan. There was no need to get involved in this business. Scorpion shit was the only one. If there was a piece of goods, there was no need to worry about selling it. If you didn't use it, you would do it yourself.

In the letter, I also suggested that the size and specifications should be unified and made into square ice cubes weighing ten kilograms, and the recommended retail price is 100 copper coins. I believe that well-off families in Wuzhou will flock to it. After all, rare things are expensive, and if everything goes well, it will be an absolute huge profit.

The second thing is that the ten acres of land used to store fertilizer have been selected, nine miles away from the southern city gate of Wuzhou, with convenient transportation near the official road. Wukang is very satisfied with this. In October next year, the first queen Chen Shuozhen will rebel and will attack the northern gate of Wuzhou, which will not affect the warehouse. At the same time, the warehouse courtyard wall has also started construction and is expected to be completed in 20 days.

The third thing is that ox carts and wooden barrels are being built. The second generation almost searched for all the carpenters, working overtime and taking off day and night, and the delivery is expected to be about 20 days.

The fourth regret is that the leaders of Wuzhou agreed to build public toilets, but only approved fifteen seats, five less than the original plan; the leaders agreed to recruit law enforcement teams, but the limit was 30 people, half less than the original plan; they agreed to implement a copper fine policy, punish littering and urinating and defecating everywhere, and fined one penny of copper each time. But for 55 cents, every 100 cents of fines, fifty cents must be paid.

Wu Kang was so angry that he cursed directly. These bastards who plucked their hair without paying a single salary to the law enforcement team. They even asked for equal sharing, and they just eat and don't eat you guys!

He cursed for a quarter of an hour, came out of the office, patted his hands to inform the meeting. Everyone came to the conference room, and Wu Kang sat in the main seat, feeling a bit like a change of time and space. The conference room was designed by him personally, the table was a conference table in later generations, and the chair was a high chair in later generations. Because of this conference room, the furniture was delayed at home, and now he is still squatting on the ground to eat.

He looked up at the venue, and there was no one at the second to last place on the left. After thinking for a moment, Qian Shun and Qian Silang were absent. The boy was only eighteen years old, a few months younger than him, but he was the father of two children. He couldn't help but smile and asked Jiang Daniu next to him: "Have Qian Si asked for leave? What's wrong with the family?"

Jiang Daniu shook his head and looked at Tong Lin Tong Sanlang. Tong San and Qian Si lived in the same street. The two families were in the wrong place. Seeing everyone looking at him, they smiled with a bitter face: "The Qian Si family had a fight yesterday. His little wife was sick. Sister Qian did not go to get medicine, and they donated the money to Huang Xiangu. Qian Si beat Sister Qian and went to see the little wife!"

Wu Kang had a clue in his mind, probably because of feudal superstition. He pondered for a moment and said, "I will arrange my work first when discussing Huang Xiangu later. Sanitation rectification in Wuzhou is imperative. First, clean up the garbage pile and manure pile. There are three urban areas, and you are in a group of ten people, respectively. The first group is responsible for the North District and the Group Leader Jiang Dalang; the second group is responsible for the Central District and the Group Leader Xu Sanlang; the third group is responsible for the South District and the Group Leader Tong Sanlang. After completing the task, each group will be rewarded with three bronze stakes!"

The bad guys instantly climaxed, each group of three stakes was 300, and the salary was not that much in a year! The so-called heavy rewards must be brave men. They were extremely excited and began to flatter and thank Wu Kang for their support. However, there were also rational people, Xu Sanjiao asked: "Do you dare to ask Wu Shuai, how to clean up the manure pile?"

Wu Kang said: "In twenty days, there will be ox carts, wooden barrels and hemp ropes, each group will be divided into ten cars. Because you can't afford so many oxen, you can find ox, horse, and donkeys. Tell the driver to bring their own tools, put manure and garbage in large wooden barrels, and send them to the warehouse nine miles south of the city to give a cart of ten cents. The group that first completed the task will reward 500 cents of copper coins!"

The conference room was in full swing, and everyone's faces were red with excitement. Some whispered to each other, some grinned silly, and some flattered.

When they calmed down, Wu Kang continued, "In these twenty days, everyone will find all the animals and don't delay my coach's plan... The matter ends here, let's talk about Qian Si's affairs, what is Huang Xian Gu?"
Chapter completed!