But soon, Su He fell into deep thought again.
"It's not difficult to make your own electric fan. But the most difficult part is that the raw materials are hard to find."
An electric fan is nothing more than a few things, fan blades, motor, and power supply.
There are other things that are not the most important but are indispensable, such as the casing, the wires connecting the motor and power supply, and tools.
"The motor can also be homemade, but there are not so many copper wires, so it is not easy to handle."
Copper is a metal that has been used as currency since ancient times, and is much more expensive than iron.
Iron is easy to find, but copper is not.
What's more, it needs to be made into wires before it can be made into a motor.
The power supply can be made into a socket, which is not that difficult.
Su He, who is proficient in mechanics, has no difficulty in solving this problem.
Even the most difficult motor can be made by hand, let alone the other ones?
"But the price-performance ratio is not high, but you can try to make a few of them yourself and use them yourself."
His time is still very precious, and he can definitely make money by hand-making one electric fan after another like this.
But the price/performance ratio is not high.
"If I do this kind of thing, it would be no different to assemble a bicycle directly for Li Jianren."
With that said, Su He put down the book in his hand and prepared to sleep.
Turn off the lights and lie on the bed. A gust of river breeze blows from the window, which makes the already hot weather feel a little cooler.
"Fortunately, this place is close to Yuan River, otherwise it would be difficult to sleep."
Today's electric fans are different from those in later generations, where you can buy one online for just a few dozen yuan.
Later generations can buy any brand, mail it home, and assemble it themselves.
Very simple.
Today's electric fans should still be difficult to disassemble. Anyway, not everyone can assemble them.
What's more, it may be more troublesome for the manufacturers.
Whether it is the production of motors or the development of various time controls and voice controls, it is not a day's work.
In fact, to put it bluntly, the principle is the conversion of electricity, magnetism and kinetic energy.
Su He was no stranger to this, but it was difficult for a clever woman to make a meal without rice, and without raw materials, it would be difficult for him to do it.
There were some materials in the warehouse. He could take out some of them, but not too much.
"Besides, find time to make one or two by hand. At least you should have one at home."
Electric fans are also a type of electrical appliance, and not many families can own them nowadays.
The price is still very expensive. An electric fan without time control costs close to one hundred yuan.
Based on today's single-digit wages for workers, it would take almost a year to afford an electric fan.
This is luxury.
With his head deep in thought and the river breeze blowing, Su He unconsciously fell asleep.
In the middle of the night, a figure suddenly ran up the wall from outside, dressed in black, looking at the situation in the yard.
Heizi had woken up, and Black Star was still chewing the cud and stood up.
The man secretly said: "That young man was alert before. I followed him secretly for a while and actually found out that I was following him. Fortunately, I was alert and he didn't discover my whereabouts. After some investigation, I found out that I live here. But this People are also troublesome, and it seems to be related to Li Jianren, the director of the supply and marketing cooperative in Zhangshu Town. This person has methods, and his origins seem to be mysterious. I just need to warn him not to meddle indiscriminately. As for life, don’t think too much about it. "
Think so. The man in black had already jumped off the wall.
Just as he was about to touch the living room, the man saw a pair of ox eyes like bells staring at him.
"not good."
How could the man in black have imagined that it was just a cow, how could he take the initiative to attack him?
But the next moment, the horn hit him, and the man in black felt like his body was hit by a high-speed car.
It felt like being pierced by a dagger, with bursts of pain.
Not only that, he was bitten by something on his foot. He felt that there must be a wound on his foot and it was bleeding.
Damn it, is it that dog?
My mind spins very fast, so many thoughts just turn around in an instant.
Then he suppressed the pain in his body, but still made a few muffled sounds.
The cow and dog refused to let him go, charging at him while letting out sharp cow barks.
Really, what a ghost.
Are all the beasts in this family so powerful?
It was just a cow. The man in black felt that he could handle it and would not be hurt.
The first time he was hit by the horn, he could have avoided it.
The Man in Black is confident that he has the speed to do this.
But his body was bitten by the dog and he refused to let go. He couldn't move his body.
If it were just the dog, the man in black would dare to fight or even kill the dog.
But this combination of cow and dog seems to know how to cooperate.
If he attacks the cow, the dog will come and pull.
If he attacks a dog, the horns of the bull will not spare him.
What a ghost. Have these cows and dogs become spirits?
Didn’t it say that after the founding of the People’s Republic of China, one would not be allowed to become a spirit?
Not even allowed to have goddesses or anything like that.
How come these cows and dogs have become sperm?
No, I have to go to worship God. I must not have looked at the almanac when I went out.
There was already movement in the house, and the man in black knew that he could no longer stay.
Since that young man could detect his tracking, his skills would definitely not be too weak.
If he cooperates with this cow and dog again, he may lose his life.
The most important thing is that he is now injured and his skills have been limited.
Thinking of this, the man in black became fierce, forced Heizi back, borrowed Black Star's power, rushed to the door, opened the door quickly, and ran out.
Just then, Heizi chased him and bit him again.
The man in black didn't dare to come back for revenge, because Su He had already come out with a flashlight.
"Who is it?"
Su He was also thinking that the man in black couldn't see his face clearly, but...
His flashlight hit the ground and he saw a few pools of blood.
There wasn't a lot of blood and it was very scattered, which meant the opponent was injured, but it shouldn't be a particularly serious injury.
However, it is not that easy to recover in a short period of time.
"He Yaozi, what's wrong?" Ye Chengbo came out yawning. The sounds in the house and yard finally woke him up.
Su He used his flashlight to shine on the blood on the ground and said, "Someone came here at night, but Black Star and Heizi worked together to repel them. The other party was injured and should not attack again in the short term."
In his mind, Su He was still thinking: "If Heizi bites his opponent and happens to make him contract rabies, there will probably be no follow-up."
But not every time you are bitten by a dog, you will get rabies. There is a chance.
Su He didn't know what the chance was, but it shouldn't happen in a short time.
Ye Chengbo was still frightened. He looked at the blood on the ground and then at Hei Xing and Hei Zi. He said thankfully: "Fortunately, I didn't offend Hei Xing and Hei Zi. I will have to rely on your protection in the future."
