After a while, Zheng Fu, who was in charge of the catering department, came in with a skinny middle-aged man. Zheng Fu was Li Zhi's cousin and the son of Li Zhi's aunt. He was fat and easy to talk to. He defected to the emperor in the seventh year of Chongzhen's reign.
Li Zhi.
Zheng Fu is very greedy and likes to eat meat. Li Zhi made him the manager of the catering department from the year before last. He was stipulated that the manager of the catering department could eat eight taels of meat per meal, which is half a catty. Zheng Fu was asked to do this every day.
Eat well. Zheng Fu managed things well after he became the general manager, and there was nothing wrong with him.
Zheng Fu and Li Zhi were relatives, so the etiquette was simple. He bowed his hands and bowed to Li Zhi, which was considered a salute. The thin middle-aged man was nervous, so he knelt down on the ground when he came in. When he heard Li Zhi say
I didn't get up until I was free of gifts.
"Sir, I brought this man here to recommend a chicken farmer to you!"
Li Zhi was stunned for a moment, secretly thinking that this was a talent that was in urgent need.
Li Zhi now raises more than 15,000 people, and they all receive meat for three meals a day. Now that Li Zhi has opened a pig farm and has 20,000 tenant farmers, Li Zhi can be self-sufficient in both pork and grain, and has controlled prices.
.But Li Zhi has to purchase the eggs for his meals every morning from outside. More than 15,000 eggs a day is not a small expense.
Originally, a pound of eggs on the market cost about one cent and seven cents of silver. However, the transportation of eggs was inconvenient. As the demand in Fanjiazhuang continued to increase, the price of nearby eggs increased. Now it has risen to two cents of silver per pound. A pound of eggs costs about ten cents.
Two, Li Zhihua spends more than 20 taels of silver on eggs for breakfast every day, which works out to 800 taels of silver in a month.
Moreover, with the increase in the population of Fanjiazhuang, the price of eggs in this area continues to rise. If he wants to save some money, Li Zhi must build his own chicken farm.
Li Zhi looked at the middle-aged man next to Zheng Fu curiously and asked, "Can you raise chickens?"
The middle-aged man bowed and said: "Xiaomin has been raising chickens for more than 20 years. Xiaomin raises more than 500 free-range chickens to get eggs by himself, and he can get more than 400 eggs every day!"
Li Zhi asked: "How do you live free-range?"
"Xiaomin's grass chickens go to the grassland on the dry land every morning to eat bugs, grass seeds, and tender grass. Of course, they also need to be fed with concentrates. They are fed grain three times a day to make concentrates. At other times, the chickens are allowed to find food on their own.
Chickens raised like this rarely get sick, produce more eggs, and save money."
"Xiaomin has calculated that with Xiaomin's method of raising chickens, two kilograms of eggs can be produced for every three kilograms of grain fed."
Li Zhi nodded and said: "I hire you to be the manager of the chicken farm, and recruit forty people to raise more than 20,000 free-range chickens for eggs. As the manager, I will give you five taels of silver a month. How about raising chickens?
The venue is in a remote pasture and it is inconvenient to provide meals, so I will not give you three meals containing meat."
The middle-aged man nodded and said, "The common people are willing to do things for the General."
Li Zhi nodded, secretly thinking that he had saved another item of money.
As soon as he said it, Li Zhi carved out a chicken pasture on the dry wasteland south of Fanjiazhuang. The pasture was eight kilometers in radius. The chicken houses were 15 square meters each, and each chicken house raised 120 chickens. A total of 120 chickens were raised in the chicken house.
There are two hundred chicken coops. Each five chicken coops are gathered together, occupying nearly two square kilometers of pasture. Forty workers are hired to manage five chicken coops each and are responsible for feeding and cleaning the chicken coops.
After building the chicken coop, Li Zhi's chicken workers went out to buy chicks. It is believed that after more than 20,000 chickens start laying eggs, the price of eggs on the market will drop to the original level.
####
Li Zhi decided to bring electricity to Ming Dynasty.
The principle of power generation is very simple. Use a coil to cut magnetic lines of force between two magnets, and current will be generated in the coil. Although the invention of the electric motor was much later than that of the steam engine, the principle and manufacturing difficulty of the electric motor are much simpler than that of the steam engine. Compared with the steam engine
It is better to say that the technological level of the seventeenth century was unable to discover the existence of electricity. It is better to say that the area of human exploration has not accidentally entered this field.
But for Li Zhi, who traveled from a later generation full of electricity to the Ming Dynasty, it was easy to invent electricity in the seventeenth century.
Li Zhi decided to make an experimental generator first.
To make a generator, you must first draw copper into wire. This is not difficult, and any coppersmith with some skills can do it. Li Zhi found an old coppersmith in the Acropolis of Tianjin. The old coppersmith made copper for hats.
For decoration, he drew copper wire every day. He directly heated and annealed the copper ingot, and used a simple wire drawing machine to pull out a long copper wire.
After obtaining the copper wire, you need to turn the copper wire into an externally insulated wire. If you want to obtain practical current, you must use a coil with enough turns. If there is no insulator between the copper wire and the copper wire, it means that there is only one circle of copper wire.
The current is so small that it is meaningless.
Rubber is not available these days. Although cotton, linen and linen are insulators, both fabrics easily absorb water from the air. Once they absorb water, these fabrics become conductive.
In the end, Li Zhi could only use silk cloth as an insulator. Although the silk cloth was thin, it did not absorb water, had a very good insulation effect, and would not be broken down under low voltage. Although the price was a bit more expensive, for Li Zhi's experiment
It's still affordable for a sex generator.
Li Zhi bought a piece of Hangzhou satin, cut it into long strips, and wrapped the copper wires bit by bit. Then Li Zhi rolled the copper wires wrapped in silk cloth into coils with a diameter of one meter, and rolled them a hundred times.
.
The next step was to establish a magnetic field, which was easy to do. Li Zhi asked Xue Yuanwai, who was in the soda ash business, and relied on his travel experience to buy two large magnets in the capital and transport them to Tianjin by carriage. Li Zhi cast an iron
The shelf holds two large magnets opposite each other, forming a magnetic field.
Finally, Li Zhi installed the coil on a bearing and rotated the coil between two large magnets to generate current in the coil.
Li Zhi found a copper, filled it with saturated salt water, and then stretched the wires touching both sides of the coil into the bucket.
As soon as the coil was shaken in the magnetic field, countless bubbles emerged from the two wires in the bucket. Obviously, an electric current was generated in the coil and the sodium chloride solution was decomposed. Chlorine gas was generated at the anode, and hydrogen gas was generated at the cathode.
Li Zhi found a servant from outside the house and asked the servant to continue shaking the coil. He went to the anode and smelled it, and indeed smelled the pungent smell of chlorine.
Seeing the chlorine gas coming out of the bucket, the servant shaking the coil was surprised and said: "General, are you doing magic?"
Li Zhi smiled and asked the servant to continue turning the coil in the magnetic field until the pungent smell no longer emerged. No chlorine gas was decomposed, which meant that all sodium chloride had turned into sodium hydroxide, and the electrolysis equipment began to electrolyze.
Oxygen comes out.
Li Zhi wanted to test whether the solution produced was sodium hydroxide, so he heated the solution produced by electrolysis and grease together. Sure enough, he saw a layer of soap floating on the water.
Li Zhi's experimental generator was a complete success.
