To say that the most annoying thing about winter, is it cold? Is it dry? Is it windy?
None of them, it's static electricity.
At night, when I take off my clothes and crackle, when I change the sheets and covers, when I take something, my hands hurt, my hair either flies or clings to my scalp, and any two people have a crisp "electric shock" feeling when they touch.
(Source: Figureworm Creative)
Static electricity not only adds to our life troubles, but also has huge safety hazards, such as in gas stations, static electricity release can provide sparks for fires and explosions, and in the universe, electrostatic discharge will also cause spacecraft failure.
So, why is there static electricity as soon as the day is dry? How to reduce static electricity generation in life?
Where does static electricity come from?
Looking back at junior high school physics, we learn that in 600 BC, the Greek philosopher Thales discovered that amber rubbed with fur could suck up dust.
A little deeper, scientists have discovered that the essence of this phenomenon is actually the transfer of electrons.
The same is true of the generation of static electricity in the human body, when we are active, the body, clothing and the ground, air, etc. will produce friction, so that electrons transfer between them, so that the body is charged, that is, static electricity.
And most of our shoes do not conduct electricity, there is no way to conduct the accumulated charge of the body to the earth, so the charge is more and more accumulated, and when you touch a conductor like metal, electrostatic discharge will occur, that is, "pop" to be electrified.
Studies have shown that in the dry season, the human body static electricity up to thousands of volts or even tens of thousands of volts, when feeling the electric shock, the electrostatic voltage on the human body has exceeded 2000 volts; when seeing the discharge spark, the static electricity on the body has exceeded 3000 volts, then the fingers will have a pinprick-like pain; when hearing the "cracking" sound of the discharge, the static electricity on the body has reached 7000 ~ 8000 volts.
(The charged human body is also a Pikachu/source network that can be discharged at any time, invaded and deleted)
The reason why static electricity in winter is more serious than in summer, and the static electricity in the north is more serious than in the south, because humidity will affect the accumulation of static electricity, and when it is relatively wet, the tiny water droplets floating in the air can transfer a part of the body's charge as a good conductor.
Hazards of static electricity
For normal healthy people, the body is generally not felt when it is charged, and it will only be "tragic" when it is discharged, but the elderly are more likely to be plagued by static electricity.
In the elderly who have various lesions in the cardiovascular system, static electricity will aggravate the disease or induce ventricular premature beats and other arrhythmias; excessive static electricity often makes people restless, headache, chest tightness, breathing difficulties, cough.
Static electricity on clothing can adsorb a variety of viruses, bacteria and harmful substances contained in air dust, which can affect people's respiratory health, and even induce tracheitis and asthma.
In addition, if the gas and liquefied gas at home are not turned off, and the smell is obvious, do not open and close any electrical appliances, do not wear and undress, immediately open the doors and windows for ventilation, and immediately close the valves of gas and liquefied gas.
Because the electrostatic voltage reaches 2300 volts, it can cause gas and liquefied gas to explode, and the highest electrostatic voltage generated by the woolen coat is 2800 volts, the cotton coat is 2600 volts, the demix clothing is 5000 volts, and the static electricity of the stripping nylon clothing can reach 10000 volts.
How to safely "discharge"?
As we said earlier, humidity (or moisture) can help transfer charges, so paying attention to body moisturization (rubbing body lotion, etc.) and increasing indoor humidity (mopping the floor frequently, opening the humidifier, etc.) are effective measures to reduce static electricity.
In addition, the material of clothing will also affect the accumulation of static electricity, polyester, nylon and other chemical fibers made of clothing water absorption is poor, static electricity is more serious, and cotton and linen material water absorption is better, you can avoid static electricity accumulation.
The addition of softeners in the final step of washing clothes can also reduce static electricity generation, because the softener molecules can be spread on the surface of the fabric, forming a molecular film and reducing the coefficient of friction on the surface of the fibers.
If you want to discharge it safely without being "beaten", you can first touch the wall with your hand, or touch the metal object with the key tip, "put" the static electricity out, and then touch the door handle or other conductors will not be electrified.
There is also a scene that is often electrified when getting off the car, because the body rubs against the saddle when getting off the car, resulting in static electricity, and when you get off the car and close the door, your hand will touch the metal door frame and then be electrified. In this case, you can always grasp the door frame when you get off the car, transfer the charge in time, and do not let the static electricity accumulate all the time.
If you still have a better anti-static small method, you can also leave a message at the end of the article to tell Chunyu jun ~
Edit: Dr. Spring Rain
bibliography:
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