Li Zhi nodded and let Zheng Fu in. Pen, fun, pavilion www. biquge。 info

In the middle of the night, Zheng Fu, who was in charge of the food department, walked in with a thin middle-aged man. Zheng Fu is Li Zhi's cousin, the son of Li Zhi's cousin, and he is chubby and very talkative. In the seventh year of Chongzhen, he defected to Li Zhi.

This Zheng Fu is very greedy and likes to eat meat, Li Zhi simply asked him to be the head of the catering department since the year before last, stipulating that the head of the catering department can eat eight taels of meat at a meal, that is, half a catty, so that Zheng Fu can eat enough every day. Zheng Fu managed it well after becoming the manager, and there was nothing out of line.

Zheng Fu and Li Zhi are relatives, so the etiquette is simple, and it is considered a salute to Li Zhi with his hand. The thin middle-aged man was more nervous, so when he came in, he knelt on the ground and bowed, and only got up when he heard Li Zhi say that he was exempt from courtesy.

"My lord, I brought this man here to recommend you a talent who raises chickens!"

Li Zhi was stunned, and secretly said that this is a talent in urgent need.

Li Zhi now has more than 15,000 people, all of whom are treated with meat for three meals. Now Li Zhi has opened a pig farm, and with 20,000 tenant farmers, Li Zhi can be self-sufficient in pork and grain, and the price is under control. But Li Zhi also has to purchase the eggs that are served every morning. More than 15,000 eggs a day is also a lot of money.

Originally, a pound of eggs in the market only cost about one cent and seven cents of silver. However, the transportation of eggs is inconvenient, and with the continuous improvement of demand in Fanjiazhuang, the price of eggs in the vicinity has risen, and now it has risen to two cents of silver a catty. A pound of eggs is about twelve, and the silver on Li Zhihua's breakfast eggs costs more than 20 taels every day, and 800 taels of silver in a month.

And with the increase in the population of Fanjiazhuang, the price of eggs in this vicinity has continued to rise. If he wanted to save some money, Li Zhi had to build his own chicken farm.

Li Zhi looked curiously at the middle-aged man beside Zheng Fu and asked, "Do you know how to raise chickens?" ”

The middle-aged man bowed down and said, "Xiaomin has been raising chickens for more than 20 years, and Xiaomin has raised more than 500 grass chickens to take eggs by himself, and he can get more than 400 eggs every day!" ”

Li Zhi asked, "How did you get free-range?" ”

"The grass chickens of the small people rush to the pastures above the dry land every morning to eat insects, grass seeds, and tender grass. Of course, you should also feed concentrate, feed grain three times a day to make concentrate, and let the chickens find food by themselves at other times. The chickens raised by Xiaomin in this way rarely get sick, lay more eggs, and save money. ”

"Xiaomin has calculated that Xiaomin's method of raising chickens can produce two catties of eggs for every three catties of grain fed."

Li Zhi nodded and said, "I hired you to be the manager of the chicken farm, and recruited forty people to raise more than 20,000 grass chickens for eggs." As a manager, how about giving you seven taels of silver a month? The chicken farm is in a remote pasture, and it is inconvenient to provide food, so I will not give you three meals with meat. ”

The middle-aged man could only earn more than five taels of silver a month by raising chickens, and he could earn more than one or two taels of silver when he came to Li Zhi's work, so he nodded and said, "Xiaomin is willing to do things for the general." ”

Li Zhi nodded, and secretly saved another expense of silver.

As soon as he said it, Li Zhi carved out a chicken pasture on the arid wasteland south of Fanjiazhuang, with a radius of eight kilometers. A chicken coop of 15 square meters, each chicken coop has 120 chickens, and a total of 200 chicken coops have been built. Every five chicken coops are clustered together and occupy nearly two square kilometers of pasture. Forty workers are hired to manage five chicken houses each, and are responsible for feeding and cleaning the chicken houses.

After the chicken coop was built, Li Zhi's chicken workers went out to buy chicken seedlings. It is believed that after more than 20,000 chickens begin to lay eggs, the price of eggs in the market will drop to the original level.

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Li Zhi decided to bring electricity to Daming.

The principle of power generation is very simple, use a coil to cut magnetic field lines in two magnets, and an electric current is generated in the coil. Although the invention of the electric motor is much later than the steam engine, the principle and manufacturing difficulty of the electric motor are much simpler than the steam engine. It is not so much that the state of technology in the seventeenth century could not have discovered the existence of electricity, but that the areas explored by mankind have not yet entered this field by chance.

But for Li Zhi, who traveled from a fully charged later life 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 first have to draw the copper into wires. This is not difficult, and coppersmiths with a little bit of skill will do it. Li Zhi found an old coppersmith in the Tianjin Acropolis. The old coppersmith made the copper ornaments on the hat, and pulled the copper wire every day. He directly heated and annealed the copper ingots, and used a simple wire drawing machine to pull out a long copper wire.

Once you have the copper wire, you need to turn the copper wire into an externally insulated wire. If there is no insulator between the copper wire and the copper wire, it is equivalent to only one coil of copper wire, and the current emitted is negligible, which is meaningless.

Rubber is not available this year. Although cotton and linen are insulators, both fabrics tend to absorb water from the air. As soon as they absorb water, these fabrics become electrically conductive.

In the end, Li Zhi could only use silk cloth as an insulator. Although the silk cloth is thin, it does not absorb water, the insulation effect is very good, and it will not be broken down under low voltage. Although it is a little more expensive, it is still affordable for Li Zhi's experimental generator.

Li Zhi bought a piece of Hangzhou satin, cut it into long strips, and wrapped the copper wire little by little. Then Li Zhi rolled these copper wires wrapped in silk cloth into coils with a diameter of one meter, and rolled them a hundred times.

The next step is to build up the magnetic field, which is easy to do. Li Zhituo, who was in the soda ash business, relied on his experience in traveling south and north to buy two large magnets in the capital and transport them to Tianjin by horse-drawn carriage. Li Zhi cast an iron frame and fixed two large magnets opposite each other, forming a magnetic field.

Finally, Li Zhi attaches the coil to a bearing, and rotates the coil in two large magnets to generate current in the coil.

Li Zhi found a piece of copper, filled it with saturated salt water, and then reached into the bucket of water with the wires that touched the two sides of the coil.

As soon as the coil was shaken in the magnetic field, countless bubbles bubbled up from the two wires in the bucket. Apparently, an electric current was created in the coil that broke down the sodium chloride solution. Chlorine is produced at the anode and hydrogen is produced at the cathode.

Li Zhi found a housekeeper from outside the house, asked the housekeeper to continue to shake the coil, and went to the anode himself to smell it, and indeed smelled the pungent smell of chlorine.

Seeing the chlorine gas coming out of the bucket, the family who shook the coil was surprised, and said, "General, are you doing a spell?" ”

Li Zhi smiled and asked Jia Ding to keep turning the coil in the magnetic field until the pungent smell no longer came out. There is no decomposition of chlorine, which means that the sodium chloride has all turned into sodium hydroxide, and the electrolysis equipment has begun to electrolyze oxygen.

Li Zhi wanted to check whether the produced solution was sodium hydroxide, so he heated the solution generated by electrolysis in the bucket together with the grease, and sure enough, he saw a layer of soap floating on the water.

Li Zhi's experimental generator was a complete success. (To be continued.) )