Traditional Culture Encyclopedia - Tourist attractions - Why do you have static electricity?

Why do you have static electricity?

Question 1: Why do I always carry static electricity? It is because of dryness, skin rubbing against woolen (chemical fiber) clothes and other reasons. This is a very normal phenomenon. Don't worry, as long as you pay attention to touching objects with zero potential at any time (such as walls, cement floors and good conductors in good contact with the ground), you will release static electricity in time and won't get an electric shock.

Generally, when the relative humidity of air is lower than 30%, it is beneficial to generate static electricity by friction. Therefore, in this weather, especially in rooms with heating, use a humidifier to adjust the air humidity, or sprinkle some water at home, and put one or two pots of clear water in places where it is not convenient to wet the floor, so that the relative humidity of indoor air can reach more than 45% and static electricity is not easy to generate.

2. In winter, especially for the elderly, children, electrostatic sensitive person, heart patients who can't find the cause, neurasthenia and mental patients, don't wear chemical fiber underwear, try to wear pure cotton underwear, * * *, to reduce the generation of static electricity.

3. The TV can't be placed in the bedroom, because when the TV is working, electrostatic particles will be generated around the screen, which will absorb a lot of floating dust in the air and have adverse effects on human body and skin. When watching TV, people should keep a distance of 2-3 meters from the TV. After reading, they should wash their faces and hands to eliminate static electricity.

4. Bathing and changing clothes frequently can effectively eliminate the static charge accumulated on the surface of human body.

5. When the hair can't be combed, soak the comb in water, and after the static electricity is eliminated, you can comb it at will.

6. When resting, you may wish to walk barefoot, which is beneficial to the electrostatic discharge accumulated on the body surface.

7. Wearing sports shoes is easy to accumulate static electricity. Because the soles of travel shoes are generally insulated, static electricity on the body cannot be removed from the soles of the feet and accumulated. So people who are prone to static electricity should try not to wear it.

Question 2: Why do I always carry static electricity 1? There is little sunshine, especially in summer. Don't be too dry. Keep a certain humidity indoors and wash your face and hands more.

2. When the human body is active, static electricity will be generated when the skin rubs against clothes and clothes rub against each other. With the increase of household appliances and the increase of people wearing chemical fiber clothes in winter, the electrostatic charges generated by household appliances will be absorbed and accumulated by the human body. In addition, the walls and floors of the room are mostly insulators, and the air is dry, which is more susceptible to static interference.

3. When the human body is active, static electricity will be generated when the skin rubs against clothes and clothes rub against each other.

4. With the increase of household appliances and the increase of people wearing chemical fiber clothes in winter, the electrostatic charges generated by household appliances will be absorbed and accumulated by the human body. In addition, the walls and floors in the room are mostly insulators, and the air is dry, which is more susceptible to static interference.

Just touch the wall from time to time to conduct electricity.

6. To deal with static electricity, we can take two measures: "prevention" and "release". "Prevention", we should try to choose pure cotton products as fabrics for clothes and home decoration, and try to avoid using chemical fiber carpets and furniture with plastic as surface materials to prevent friction and electrification. Try to stay away from TV, refrigerator and other electrical appliances to prevent induction electrification. "Discharge" is to increase humidity and make local static electricity easy to release. When you turn off the TV and leave the computer, wash your hands and face immediately, so that the electrostatic charge on the skin surface can be released in the water.

7. When the hair can't be combed, soak the comb in water, and after the static electricity is eliminated, you can comb it at will. Try to use moisturizing lotion or conditioner when washing your hair.

8. When the hair can't be combed, soak the comb in water, and after the static electricity is eliminated, you can comb it at will. Try to use moisturizing lotion or conditioner when washing your hair.

Question 3: Why do people have static electricity? In dry and windy autumn and winter days, we often encounter this phenomenon in our daily life: when we take off our clothes and sleep at night, we often hear crackling sounds in the dark, accompanied by blue light. When you meet and shake hands, as soon as your fingers touch each other, you will suddenly feel the stinging pain of your fingertips like needles, which is shocking; When I get up in the morning to comb my hair, my hair tends to "float", and the more I manage it, the more chaotic it is. When you pull the door handle and turn on the tap, you will get an electric shock, and you will often make a "bang, bang" sound. This is static electricity generated in the human body. All the above phenomena are the result of the external "discharge" of static electricity in the body.

When the human body is active, the friction between skin and clothes, and the friction between clothes will generate static electricity. With the increase of household appliances and the increase of people wearing chemical fiber clothes in winter, the electrostatic charges generated by household appliances will be absorbed and accumulated by the human body. In addition, the walls and floors of the room are mostly insulators, and the air is dry, which is more susceptible to electrostatic interference.

In order to prevent the occurrence of static electricity, it is necessary to maintain a certain humidity indoors, often mop the floor, often sprinkle water, or humidify with a humidifier; Take a bath and change clothes frequently to eliminate the static charge accumulated on the surface of human body. When you find that your hair can't be combed, soak the comb in water for a while, and then comb your hair after the static electricity is eliminated. After taking off your clothes, gently touch the wall with your hands, and touch the wall with your hands before touching the door handle or faucet to "discharge" the static electricity in your body, so as not to hurt you. For the elderly, we should choose soft and smooth cotton textiles or silk underwear, and try our best to reduce the harm of static electricity.

Question 4: Why do you have so much static electricity? First of all, talk about the source of static electricity on you. Any object is made up of molecules, and molecules are made up of electrons inside and outside the nucleus. When different molecules contact (such as friction), the stability of extranuclear electrons is different, which will lead to the loss of positive electron charge for active molecules and negative electron charge for stable molecules. 2. According to the above principle, the phenomenon of electron loss and competition will also occur between dry bodies or different clothes, resulting in the potential difference between the human body and other objects. When two objects with different potential differences contact, current will flow and cause instantaneous discharge. 3. Some people may ask: Why did this electrostatic discharge not happen before 1970s, and why is it so common now? This is related to social development and product nature. In the past, most people wore cloth clothes, and cotton products have strong moisture absorption and moisture retention ability, which is not easy to cause electrostatic potential difference. Interior decoration mostly uses cement floor, mostly bungalows. Static electricity generated by the body and clothes flows into the earth at any time, so there is no or little static electricity that the human body can't feel. However, now there are many high-rise buildings, tiles are attached to the ground, and the human body is insulated from the earth. The generated static electricity can not be integrated with the earth in time, which will cause static electricity to accumulate and release to other objects at any time.

Knowing the cause of static electricity, there is a way to eliminate it. First, the air is dry. Try to equip the room with a humidifier in winter, and keep the indoor relative humidity at 55%. Second, choose cotton clothing. Sweaters and other clothes can be treated with gold spinning when washing. Third, when you take off your clothes, you will generate static electricity. In order to prevent the discomfort caused by the rapid discharge of other objects, you can touch the wall with your hands first (don't touch metal objects), because the resistance of the wall is large, and then you won't feel charged if you touch other objects. There are other methods that I won't introduce one by one.

Question 5: Why is there always static electricity in winter? Why is there more and more static electricity now? In winter, many people feel that they are shocked more and more frequently in their work and life: when they open the door, turn on the light and turn on the tap, they may be shocked by flashing static electricity, and sometimes even have a tingling sensation of strong electric shock. It is determined that the instantaneous voltage generated by friction may be higher than 1 10,000 volts under the condition of good insulation. Some experts even believe that static electricity will interfere with the normal work of the heart in an instant. But more doctors believe that static electricity is not terrible, as long as it can be released slowly through prevention and discharge.

Can static electricity do harm to our bodies? To answer this question, we should start with the causes of static electricity and the physiological and electrical environment of our human body. Under normal circumstances, our body is a conductor, and the whole body is covered with salt electrolyte. The resistance inside the body is much smaller than the surface of the body. There is an uneven electric field inside the body. Using this feature, the doctor will determine whether the patient has lesions by measuring ECG, EGG and EEG. In fact, there are potentials in other parts of our bodies, and even the surface of every red blood cell is charged. Due to the connectivity of electrolyte and the circulation of blood, the electrical characteristics of our body have reached a certain balance, and charges cannot be accumulated somewhere. But in winter, especially in northern China, it is very dry, and the air humidity is generally between 30-40%. At this time, the surface of the human body will also be dry, and some parts may become insulators. Electrostatic charges will accumulate in a large number of parts of the body, and we will be charged when a certain amount of electricity is reached. After entering modern life, human beings choose fur and chemical fiber fabrics as clothing and home decorations, and the electrostatic effect produced by their friction can be seen by everyone in middle school physics experiments; With the popularization of washing machines, rice cookers, refrigerators, televisions and computers, human beings are surrounded by more and more strong electromagnetic fields, and the induced static electricity generated by these electromagnetic fields has never bothered us like this.

Some experts believe that static electricity is harmful to human body. This is reflected in: physically, static electricity in the body may interfere with or even change the inherent potential difference of the human body, affect the normal work of various organs, especially the heart, and may cause abnormal heart rate and premature beats. This kind of harm is especially serious for groups with fragile heart function. In winter, about one third of cardiovascular diseases are related to static electricity. In biochemistry, static electricity in the body will cause abnormal current conduction in brain cells and affect people's central nervous system, which will lead to changes in people's blood pH and oxygen characteristics, making people feel tired, fidgety, insomnia, headache, and even more serious may lead to mental illness. Some experts have reservations about this view. They believe that static electricity is difficult to accumulate in large quantities in the human body because of its good conductivity; However, the influence of electrostatic field on the surface of human body on the distribution of electric field and the trend of current in human body has no strong clinical basis, and even directly leads to diseases. So it is still difficult to determine what is right and wrong.

With the progress of science and the development of human understanding, how much influence static electricity has on human beings will eventually give us a statement. Before reaching a final conclusion, we'd better be careful in the face of increasingly strong static electricity.

Dealing with static electricity can prevent and discharge simultaneously. Prevention, we should try to choose pure cotton products as fabrics for clothes and home decoration, try to avoid using chemical fiber carpets and furniture with plastic as surface materials to prevent friction and electrification. Try to stay away from TV, refrigerator and other electrical appliances to prevent induction electrification. Discharge is to increase humidity and make local static electricity easy to release. When you turn off the TV and leave the computer, wash your hands and face immediately, so that the electrostatic charge on the skin surface can be released in the water. Try to choose high moisturizing cosmetics in winter. Commonly used humidifier. Some people like to keep ornamental fish and daffodils indoors, which is also a good way to adjust indoor humidity.

In addition, I recommend an economical and practical humidification method: put a basin of water under the heating, use an old towel (or absorbent cloth), put one end in the water and the other end on the heating, so that about three liters of water can be evaporated into the house day and night. If every heater does this, the whole room will feel damp and pleasant. it wont hurt you to try it

Question 6: Why do some people have a lot of static electricity but not get sick? Hehe, it has something to do with your choice of figure and clothes.

First, you are dry and prone to static electricity.

Secondly, wearing cotton clothes and chemical fiber clothes is particularly easy to accumulate too much static electricity in dry winter and spring.

Question 7: How is static electricity generated? Why do people also have static electricity? What effect does static electricity have on human body?

In dry spring, when you take off your sweater, wool or nylon or polyester chemical fiber clothes and pull the quilt out of bed, you will hear the sound of "scratching" and see the sparks flashing at night. Not only that, when fingers touch metal objects such as doorknobs, faucets and chairs. You will feel an electric shock; There are also chemical fiber clothes walking on the carpet, and sometimes there will be acupuncture-like electric shocks; When spinning chemical fiber, workers in chemical fiber factory will feel electric shock when they touch the spun thread, which are common electrostatic phenomena in life.

Two different objects can be charged by rubbing against each other, and even dry air-rubbed clothes can be charged. Triboelectricity can flow and dissipate quickly on conductive objects, but it will form static electricity on non-conductive insulators such as chemical fiber and woolen goods and will gather together. When it reaches a certain voltage, it will produce discharge, noise and sparks. In short, dry air, few water molecules and poor conductivity are the conditions for generating static electricity. Static electricity has many hazards, such as static electricity will interfere with automation instruments and electronic components; Sparks generated by chemical fiber discharge in chemical and textile departments can detonate flammable gases (acetylene, etc.). ) and flammable liquid vapor (gasoline vapor, etc.). ), causing a fire; In the sky, airplanes are charged by friction with air, water vapor and dust. , which can seriously interfere with the radio communication of the aircraft and make the aircraft lose contact; In pharmaceutical factories, electrostatic adsorption of dust makes drugs impure and affects the quality; Electrostatic adsorption of dust also has adverse effects in sterile and dust-free biochemical laboratories and hospitals; In the printing factory, static electricity can make the paper stick together and it is difficult to separate, which leads to printing difficulties; When watching TV, the static electricity on the screen absorbs dust and oil to form a dust film, which greatly reduces the clarity and brightness of TV images. In coal mines, static electricity will cause gas explosion, which will lead to serious personal injury and mine scrapping accidents.

According to the test, static electricity is also harmful to human body. When the electrostatic voltage reaches 2000 volts, fingers will feel it; Sparks appear when it exceeds 3000 volts, and fingers feel like needles. When it exceeds 7000 volts, people will feel an electric shock. In daily life, the generated electrostatic voltage can sometimes be as high as tens of thousands of volts. However, due to the short electrification time and small current generated by friction, it generally does not pose a life threat to the human body. However, on the medical operating table, electrostatic sparks will cause the explosion of anesthetics, which will hurt medical staff and patients, and must be paid attention to. In addition, a large amount of dust adsorbed by static electricity contains a variety of viruses, bacteria and harmful substances, which are harmful to human health. Severe static electricity can cause skin spots and inflammation, make people feel irritable, dizzy, chest tightness, nasopharyngeal discomfort, and even cause bronchitis, asthma and arrhythmia.

Static electricity does a lot of harm to people, but it also has many benefits. For example, people have applied electrostatic technology to industrial and agricultural production and life, such as dust removal, printing, spraying, flocking, sorting, seawater desalination, spraying pesticides, artificial rainfall, low-temperature freezing, spacecraft replenishment and so on. The simplest way to eliminate the harm of static electricity is to introduce static electricity into the ground, such as grounding the equipment with wires; Install discharge brushes at the wing tip and tail of the aircraft, and use grounding tires and grounding wires on the landing gear of the aircraft; The tail of the tanker is tied with a grounding chain; In the chemical production, storage and transportation departments, it is forbidden to use chemical fiber fabrics, and it is forbidden for workers to wear chemical fiber work clothes. In daily life, we can also take some simple measures to eliminate static electricity, such as underwear, quilts, sheets, quilts and so on. It is best to use cotton fabric instead of chemical fiber; In the family room, you can often spray water and humidify it to eliminate static electricity.

How to prevent static electricity in winter?

My nerves are often shocked by static electricity. I get nervous at the sight of metal things. Even hand washing will be affected by the water and electricity flowing out of the water pipe. I am really going to faint. I believe many people have the same experience. Here are some effective methods:

1, wash your hands before going out, or put your hands on the wall first to remove static electricity! Try to put on beautiful clothes.

2. In order to avoid electrostatic strike, you can use small metal devices (such as keys) and cotton cloth to touch doors, door handles, faucets, chair backs, bed railings, etc. To eliminate static electricity, and then touch them with your hands.

3. Wear cotton underwear.

When you are ready to get off, hold the gear with your right hand, then touch the iron part below with your fingers, then open the door and put your left hand on the iron part of the door, but don't let go of your left hand,,, and then let go of your right hand and get off. At this time, if you hold the door with your right hand, you won't be electrocuted. . Then push hard and it's done ~ ~

5. Deal with ... >>

Question 8: Why does the human body have static electricity? Experts warn that the air is relatively dry in winter. Don't think that static electricity is just uncomfortable, but it actually has a negative impact on people's health. Medical experts have confirmed that skin electrostatic interference can change the normal potential difference of human body surface and affect the normal electrophysiological process of myocardium. This kind of static electricity will aggravate the patient's condition, and continuous static electricity will also increase the alkalinity of blood, lead to itchy skin and pigmentation, affect the physiological balance of human body and interfere with people's emotions. Xiao Rong, an associate professor of dermatology at the Second Xiangya Hospital of Central South University, said that the incidence of facial diseases such as erythema and pigmentation in office white-collar workers who operate computers every day is much higher than those who do not use computers. This is because the static electricity generated by the computer screen attracts a lot of suspended dust, which leads to the face. Because the skin of the elderly is relatively dry compared with that of the young, and the cardiovascular system of the elderly is aging, the anti-interference ability is weakened, and the elderly are more susceptible to static electricity. Static electricity will aggravate the condition of the elderly suffering from various diseases of the cardiovascular system. Too much static electricity often makes people fidget, headache, chest tightness, dyspnea, cough and so on. How to prevent static electricity in daily life? 1, try not to put or put less household appliances in the bedroom. This can prevent the human body and electrical appliances from generating an electric field at close range and contacting static electricity. It is best to watch TV 2 ~ 3 meters away from it. 2. Use a "third party" to eliminate static electricity. In order to avoid the influence of static electricity, small metal devices (such as keys) and cotton cloth can be used to touch the doors, door handles, faucets, chair backs and bed railings that can cause static electricity to eliminate static electricity, and then touch them by hand. 3. Use pure natural fabrics. Try to use natural textiles such as cotton, linen and silk for underwear, sheets and quilts, and try not to use or wear chemical fiber home textiles and clothing. 4, use a wooden comb to moisturize the hair. Comb your hair with a wooden comb and use conditioner when washing your hair, which can eliminate static electricity. 5. Keep the indoor temperature. Therefore, static electricity is not easily generated. It is best to use a humidifier indoors in winter, and you can also put flowers to avoid static electricity. 6. Floor, wall, ceiling, etc. Use antistatic materials. 7. Eat more vegetables, fruits, yogurt, drink more water, supplement calcium and vitamin C, and reduce the influence of static electricity.

Question 9: Why does a person often have static electricity? The weather in winter is relatively dry, and the human body has its own resistance, which is also related to the clothes it wears. Polyester clothes are prone to static electricity. Wear some cotton and linen clothes. As long as you want to touch something in the future, put your hand on the wall for 2 or 3 seconds first, and then touch something else, and the situation will be alleviated.

Question 10: Why do people carry static electricity? On sunny days in winter, when people open windows, drive doors and turn on faucets, they are often hit by flashing static electricity, and their fingers sting like bees. This is static electricity released by human body. Research shows that the human body generally needs two conditions to generate static electricity, one is dry air, and the other is non-conductive chemical fiber clothing. In winter, there is less precipitation, the air is relatively dry, and the relative humidity is generally less than 40%, which leads to abnormal dry skin surface and increased resistance value, resulting in a large amount of charge accumulation in local skin. If you wear chemical fiber clothes, the charge is not easy to export. If your hand touches a metal conductor, the static electricity of your body will suddenly be released, and your fingers will feel electric shock. Human static electricity not only easily induces explosion and fire accidents in dangerous situations (such as gas storage tank leakage), but also has many adverse effects on human health. Excessive electrostatic accumulation in the human body will cause abnormal current conduction in the brain cell membrane, which will affect the central nervous system, thus leading to changes in blood pH and oxygen characteristics of the body, affecting the physiological balance of the body, and causing symptoms such as dizziness, headache, irritability, insomnia, loss of appetite and trance. Static electricity will also interfere with human blood circulation, immunity and nervous system, affect the normal work of various organs (especially the heart), and may cause abnormal heart rate and premature beats. In winter, about one third of cardiovascular diseases are related to static electricity. How to avoid and reduce the harm of static electricity to the body? Generally, we can start from the following aspects: increasing indoor air humidity. It is the best way to use a humidifier on a dry sunny day in winter. You can also sprinkle water indoors, put clean water, or hang some absorbent towels next to the heating equipment to keep the indoor air moist. Furniture, interior decoration materials and clothing should be antistatic. It is best not to choose carpets made of chemical fiber and furniture made of plastic as surface materials indoors; Household appliances such as televisions, air conditioners and computers should be grounded; Try to * * * chemical fiber clothing in winter, and choose cotton or silk underwear; Slippers that are often worn can be nailed with a copper wire in the shape of a staple on the sole, so that static electricity accumulated in the body can be eliminated when walking. Develop good anti-static habits. When you turn off the TV and leave the computer, you should wash your hands and face immediately to let the static electricity on the skin surface be released in the water. Try to choose high moisturizing cosmetics in winter; Barefoot is beneficial to electrostatic discharge gathered on the body surface. When resting at home, don't miss every opportunity to go barefoot. Try to keep your body in contact with metal pipes, such as water pipes and gas pipes, so that the static electricity carried by your body can be quickly transmitted to the ground.

Satisfied, please adopt.