Jinling City is a famous stove, in order to be afraid that his baby daughter will not sleep well if it is hot, Han Fei went out, and after finishing the affairs of the Chamber of Commerce Publishing House during the day, as soon as he returned home, he went into the specially designated room to make his own invention, and even the visits of Wang Ruolan and others were blocked from the door.

"Sister Lan, what's wrong with the eldest brother lately, he hasn't hugged Yushuang for several days?" Xue Baoqin went to see Han Fei several times, but he was blocked, and he was very puzzled.

Wang Ruolan was also worried, and said: "I don't know, he asked Ling'er to guard the door, and even I didn't let him in, and he didn't say anything when asked...... Maybe you're researching something important, right? ”

"Big brother is really, no matter how important things are, there is no hurry for a while, Yushuang wants to hug his father, but he can't see him!"

Xue Baochai on the side chuckled and said, "Sister Qin, I'm afraid you want to be a big brother, right?" Yushuang is so small, she doesn't care what her father is doing! ”

Of course, Han Fei is not fiddling alone, he mainly instructs the production method, and the real ones who do things are Lin Quan, the son of the housekeeper, and several skilled family members. He intends to train several manufacturing craftsmen while developing, and the maintenance of these equipment in the future cannot be done by him himself.

"Young master, the housekeeper has come to report that the cage for steaming and roasting sulfur has been made, I want to ask when you will start refining sulfuric acid?" The doorkeeper came in to give a report.

"Okay, tell them to start now...... Wait, I'll say it myself! ”

Han Fei walked out of the room and said to the housekeeper Lin Fu: "Refining sulfuric acid can be carried out immediately, I emphasize once again, it must be carried out in accordance with the safety manual I formulated, the gas produced by steaming and roasting sulfur is highly toxic, and you can't be careless, otherwise you will die!" ”

"Young master, rest assured, the old slave has been strictly supervised!" Lin Fu bowed and replied.

"That's good, the refined sulfuric acid is also a dangerous item, and it is forbidden for anyone to take it away, so let the four of Qinglong, White Tiger, Vermilion Bird, and Xuanwu take turns to take care of it!"

"The old slave obeys!"

"Did the coppersmith who drew the copper wire find it?"

"Back to the young master, I found it, the best coppersmith master in Jinling City, he heard that you need it, and he specially gave our family a preferential price!"

"We have good intentions, and it is not easy for them to be craftsmen, so our family does not take advantage of this. You told him that the copper wire must be uniform in thickness and done well, and our family will take care of his business for a long time in the future! ”

After more than ten days of preparation, all the accessories have been put in place, and the next step is assembly. The housings of the hand-cranked generator and electric fan are all made of wood for ease of manufacture and maintenance and cost saving. Because of the need for anti-corrosion, the battery shell is specially fired into a square shape by a brick kiln, and then reinforced with a box made of wooden boards on the outside.

The work of assembling the shell was completed by the general family, and the core work, such as: the copper wire winding inside the generator and fan, the inlay of magnet blocks on the rotor, the placement of battery electrodes, and the filling of sulfuric acid solution, etc., Han Fei personally instructed Lin Quan, who had been promoted to manager, to complete.

"Young master, this hand-cranked generator, electric fan, and battery are all completed, what should I do next?" Although Lin Quan didn't know what these strange things in front of him were for, Han Fei attached so much importance to it, and he knew that it was not trivial. He was thrilled to think that he had made them all by himself.

Han Fei stared at these things in front of him, and he was also very happy, he understood that the efforts of these days have opened a window for this era, and it will be of epoch-making significance.

He glanced at several people in the house and said, "These things look very simple when they are first made, but they are of great significance, and your names will go down in history because of these things!" The method of making these things is forbidden to be spread outside without my permission, and it is not allowed to talk nonsense in the house! ”

"Little obedience!"

"You can enter here, you are all stable people, I can trust you! Alright, Lin Quan, connect everything with copper wires! ”

After the line was connected, Han Fei ordered Jiading to shake the generator, and then held the positive and negative wires, slowly approaching, when the two wires were about a finger apart, an electric arc was pulled out in an instant, accompanied by a squeaky sound.

"It's done!" Han Fei saw that the generator had already sent out electricity, and his face couldn't hide the excitement. "Lin Quan, connect the generator and the electric fan, pay attention to the positive and negative poles of the power supply, connect the red paint copper wire with the red paint copper wire, connect the green paint copper wire with the green paint copper wire, don't mess up!"

Lin Quan connected the copper wire, Han Fei motioned to Jia Ding to continue shaking the hand generator, the wooden electric fan blades shook a little, and slowly rotated, as the speed of the generator accelerated, the speed of the electric fan also accelerated, and a cool breeze blew in his face.

"Young master, it's so cool!" Lin Quan jumped up happily, he finally understood the use of the electric fan, with this, there was no need to shake the fan in summer.

"Yes, this is the beauty of the electric fan, with this, we are no longer afraid of the heat!" Han Fei laughed happily and ordered the family to stop shaking.

Lin Quan found that the generator was not shaking, and the electric fan was not turning, so he hurriedly said, "Young master, this generator needs to keep shaking to make the electric fan spin?" ”

"This is because the electricity generated by the generator is not stored, the role of the battery is to store electricity, after the installation of this device, the family shakes the generator to generate electricity during the day, stores the electricity in the battery, and does not need to shake it at night, you can use the electricity in the battery to drive the electric fan!"

Han Fei thought for a while, and said: "In the beginning, we need to shake the generator in shifts to generate electricity, and then let's make a few more generators, connect them to the windmill and waterwheel, and use wind and water power, so don't waste manpower." By the way, the playground in the back garden has a runner that can also be connected to a generator, and they can also charge the battery while playing! ”

"Great, with this electric fan, you and Madame, Big Lady, can have a good night's sleep!" Lin Quan said happily: "Young Master, where are these objects properly installed?" ”

Han Fei pondered for a moment and said: "There are two empty houses near the backyard, clean up, one to store the battery, and the other to place the hand-cranked generator, this first electric fan will be moved to the room where the eldest lady is resting, and the copper wire connected in the middle is covered with a bamboo tube and placed under the eaves, and the exposed place is wrapped in animal skins to prevent rain and electricity leakage!" ”

Lin Quan led the family to set up the battery and the hand-cranked generator according to Han Fei's instructions, and connected them with copper wires, and then ordered the family to shake the generator to charge the battery. He himself held the first electric fan and followed Han Fei into the backyard.

"Big brother, are you busy?"

Xue Baoqin saw Han Fei walking into the backyard with a spring breeze on his face, hurriedly greeted him, and suddenly saw Lin Quan holding a strange object, and said with a smile: "Big brother, this is the result of your busy work these days, why do you use it?" ”

Han Fei smiled mysteriously, didn't reply, and walked into Xiao Yushuang's room.

Xue Baoqin's words aroused the interest of Xue Baochai and Wang Ruolan's master and servant, and everyone followed into the room together, looking curiously at the objects that Lin Quan put on the table.

"Young master, all the lines are connected!" Lin Quan checked the wiring again and said.

"Girls, the time has come to witness the miracle!" Han Fei smiled at several women and instructed Lin Quandao: "Close the switch!" ”

The electric fan spun in response, and a cool breeze blew the corners of the woman's clothes.

"Wow, that's cool!"

(End of chapter)