As a science and technology otaku, I have been holding electric wires and typing codes for more than ten years. It’s not my fault. Except for the fact that I can’t remember what a bank card looks like, any electronic product and what kind of technical solution it uses, you can basically tell the same thing by smelling it and looking at it.
On the other hand, another liberal arts girl in the family likes to buy, especially small things worth more than ten yuan. She will show them off in the first two days after buying them, and then basically throw them into the cold palace in the next three days. I still can't explain principles and reason to others. Looking at the IQ tax in my eyes, I can only comfort myself silently: This is the life of a science and engineering geek. If you love her, you must tolerate everything.
Before the Chinese New Year, I bought a ultrasonic cleaning machine for 29 yuan with free shipping. The first time I saw it, I felt that I had encountered a big pit this time, because my change balance never exceeded 20 yuan.
However, its promotion is like this:
Ultrasonic high-frequency vibration. . . How much does ultrasonic transducer cost? That's right, as a science and technology geek, the first thing that comes to mind is the ultrasonic transducer. My expression is like this:
When I get the real thing, it looks like this.
Open the lid and it looks like this.
Yes, you are right. For those who have seen ghost blowing the light , I know what you are thinking, and I think so too.
I took a 360-degree view of the coffin. . . , no, no trademark, manufacturer, or description was found on this cleaning machine. Isn’t this a proper three-no product?
Put glasses, jewelry (of course, I can't have jewelry), spoons and other small objects in it, fill it with water, and gently press the switch, you can hear the pleasant vibration sound and see the ripples of the water, one wave after another, until the front wave is beaten to death, and so on. Is this the legendary " ultrasonic "?
’s little hands are calloused. Where is my screwdriver? Even if I kneel down on the remote control and sleep on the sofa, I will do whatever it takes. It is so insulting to my IQ. I must teach her a lesson.
Take off the battery and remove the four screws. . . , after that, looking at everything in front of me, I fell into deep thought. I was ready to do a simple copy, uh, reverse research and development.
Who is teaching whom? It turns out that I was ruthlessly taught a lesson by Sanwu products. Two AA batteries directly drive a micro motor, coupled with a boat-shaped switch to turn on and off the power supply. Is this what is called ultrasonic? The
motor is equipped with a centrifugal counterweight. When the power is turned on, the motor starts to rotate. Under the action of the counterweight, it realizes vibration. With vibration, there are sparkling water waves. . .
It doesn’t matter whether the product is good or not, it still has to be promoted. The monthly sales volume of 4,000+ is really surprising. . . However, Duoduo offers free shipping on 12.9? That's right, good things should be shared with friends
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