psychochemist

Chapter 280 The Stupid Wise Man

The lies that children think are perfect in front of adults are actually full of loopholes in the eyes of adults.The clown's opportunistic behavior in front of wise men is actually like tricks, but wise men often see through and don't tell the truth.

rosin.A pine resin obtained from various pine trees, especially the longleaf pine, Cuban pine, and loblolly pine of the southeastern United States, and from similar pine species throughout the world.Cut a hole in these trees, so that the high-viscosity secretion (called GUM THUS) is distilled and extracted.This volatile liquid is rosin; the remaining hard resin is called rosin.Although rosin is not ideal as an ingredient in any varnishes and pigments, it has been used as an admixture in varnishes and pigments since it is one of the cheapest raw materials.In addition, rosin has many other uses in the field of art, such as bonding, sealing and other mechanical functions.Rosin was also known as pine resin (COLOPHONY) and Greek resin (Greek pitch).

And in our daily life, the most use of rosin is - flux!

When welding, since the metal surface will form a layer of oxide film after contact with air, the higher the temperature, the thicker the oxide layer.This layer of oxide film prevents liquid solder from infiltrating the metal, just as oil on the glass will prevent water from infiltrating the glass.Flux is a special material for removing oxide film, also known as flux.Flux has three major functions: [-]. Removal of oxide film: the essence is that the substance in the flux undergoes a reduction reaction to remove the oxide film, and the reaction product becomes suspended slag, floating on the surface of the solder; [-]. Prevention of oxidation: after melting , floating on the surface of the solder to form an isolation layer, thus preventing the oxidation of the soldering surface; [-]. Reduce surface tension: increase the fluidity of the solder and help the solder to wet the weldment.

There is a strong rosin smell on this strange man, indicating that he should have been in frequent contact with rosin in his living environment.

Yu Fan smiled and looked to the right of the alley. This alley is a functional store in Jixiang Village, such as laundry, electrical repair shop, barber shop, and lottery shop, serving the residents here.

When repairing electrical appliances, the most frequently used tool for maintenance workers is the electric soldering iron. They first use the electric soldering iron to dip the rosin, and then touch a joint of solder. Back to life.Every electrical repairman will inevitably have a big smell of rosin.

Yu Fan pushed his glasses and analyzed: In other words, this person is probably not in the residential building, and he is most likely in the electrical repair shop in the alley on the right at this moment.And the real identity of the strange man himself is very likely to be an electrical repairman!

"Hmph, it's a stupid little trick, trying to cover it up." Yu Fan sneered.

Yu Fan was facing the alley on the right, and there was a cold wind blowing from nowhere, which made Yu Fan shiver. What he was facing now was probably the "Bi Mawen" who had been harassing him.

As for why he appeared in XA City for a while, and DY City for a while, you will know when you meet him.

No matter how powerful the opponent is, the brave wins when they meet on a narrow road!Yu Fan knew that he was not good at playing, so he cheered himself up while walking to the electrical repair shop.In his mind, he still recalled the tricks of the three-legged cat that Second Brother Yue once taught him.

This electrical repair shop is at the deepest part of the alley. Yu Fan walked and looked at the other shops along the road. He didn't know whether it was because the business was too bad or the owner was too lazy. scene.The main road of Jixiang Village is full of feasting bars and KTV, but the small alleys on both sides are so deserted, forming a sharp contrast.

Yu Fan had already reached the door of the electrical repair shop. The door of this shop was very small, just an ordinary wooden door. This small door had been around for a certain period of time, and the surface was covered with patent leather, and the door was also closed.Yu Fan moved over lightly, and quietly put his ear on the door, wanting to hear if there was any movement inside.

hiss!It was so cold, the moment Yu Fan put his ear on the door, he felt a chill, strange, why is this wooden door so cold?It's winter, is the air conditioner turned on in the house?Isn't this superfluous?If only the storefront had a window so we could see what was going on inside.

Yu Fan endured the cold, held his breath, and listened carefully to the movement in the room.

The room seems to be very quiet, there is no big movement, only a very light "hissing" sound, which seems to be made by some electrical appliance, the sound is very weak, and the rest is only the sound of Yu Fan's own breathing .

Yu Fan moved his nose and smelled it again. There was indeed a smell of rosin in the room, and there was another smell, but it was very faint, and he didn't know what it was.

It should be here.correct!Since there is the sound of electrical appliances running inside, there must be someone inside, or someone has just been here.

Yu Fan swallowed, and gently knocked on the door with his hand, but the door didn't open, and no one answered.Yu Fan slammed on the door again, and shouted, "Is anyone there? Please open the door! The police are handling the case!" Yu Fan immediately showed his identity, imitating Chen Xiangyang's handling of the case.

Still no answer.

Yu Fan shouted again: "I'll count to three, if I don't open the door, I'll break it down!"

Still no response inside.

"Three, two, one!" Yu Fan kicked directly in the middle of the door.The wooden door, which was thought to be rotten, would open with one kick, but it didn't open with the first kick.

Yu Fan remembered what Chen Xingyang said: "Kicking the door is also skillful, and you have to kick the place close to the lock." (Chapter 18)
Yu Fan readjusted and kicked the door lock. This time, the door opened without using much force! ! !
As soon as the door opened, a gust of cold air rushed in, and everything in the house came into view, but there was no one in the house.This room is not big, about 20 square meters. There is a weak light in the room, and there is a large table with a soldering iron and various components on it.The whole house is full of all kinds of old electrical appliances. The big ones on the floor include two washing machines, eight refrigerators with their doors open, and six TVs.The little house is full.

Yu Fan raised his head, and there was an air conditioner in the room sweeping the wind, and the bright screen showed sixteen degrees.The reason why the temperature is so low after a long time is that the air conditioner is turned on.

What is the operation of turning on the air conditioner in winter?But for this weird clown, Yu Fan felt that all his actions were reasonable.

Yu Fan stepped into the room cautiously.

Sudden!Yu Fan made an important discovery!

The foot of the wall!There is a pile of the ones that have been taken off - the wonderful Bi Mawen suit!

　When you think you are smarter than others, then you have already lost half - 2-Methylpropane
　　
　
(End of this chapter)