How many kinds of thunder are common? What kind of thunder hurts the most?

Thunder is a natural phenomenon. When clouds with different charges approach each other in the sky, large-scale discharge will occur. Besides, Lei ranks 88th among hundreds of surnames in China. There are also many poems about ray. Recently, "being thundered" has become a habit. Thunder is a natural phenomenon! Lightning is a kind of discharge phenomenon. Due to different charging properties, a strong electric field is formed between different parts of thunderstorm clouds or between clouds and the ground. Because the lightning passage is narrow and the current passes too much, the air column in the lightning passage burns white and glows, and the surrounding air suddenly expands due to heat, and the cloud drops suddenly vaporize and expand due to high heat, thus making a huge sound-thunder. Lightning generated in and between clouds is high-altitude lightning; The lightning generated in cloud lightning is "floor lightning". The huge current, blazing high temperature, electromagnetic radiation and accompanying shock wave caused by lightning landing are so destructive that they can cause casualties and damage to buildings. Such as17: 20 on April 25th, 986, Guanyin Pavilion in Shuangjing, Luo Zhuang Township, Xupu County, Hunan Province, was covered with dark clouds, stormy weather, lightning and thunder. With a strong flash, a deafening thunder-floor thunder-attacked three towns and six villages, and suddenly there was chaos, lightning and thunder, and heavy rain. According to the investigation of the county joint investigation team, 7 people were killed and injured by lightning on the spot 10, of which 3 were seriously injured. One of the deceased's hair and clothes were all burnt, and his body was burnt and deformed, which was terrible. After the lightning accident, it was found that the installation of wires in the homes of residents in this area was chaotic and the wiring position was very low. Five of the seven people who died were struck by lightning under the lights and switches. Before lightning strike, the room was quite humid, which created conditions for the formation of lightning strike accidents. Therefore, the installation of wires must meet the requirements. When lightning strikes, it is one of the important measures to stay away from conductive metal objects and keep indoors dry. The harm of lightning to human body includes the direct action of current, overpressure or electricity and high temperature. When a person is struck by lightning, the current will pass through the human body quickly. In severe cases, it will lead to heartbeat, respiratory arrest and brain tissue hypoxia and death. In addition, when lightning strikes, sparks will be generated, which will also cause different degrees of skin burns. Lightning injury can also cause dendritic lightning stripes, epidermal peeling, intradermal bleeding, eardrum or visceral rupture. Death by lightning has occurred in many places. For example, Wu Luo Natural Village in Fengrui Village, Fuyang, Hangzhou, Zhejiang Province was once the "lightning village" where everyone heard that "thunder" changed color. Since 2006, at least a quarter of the people in Wuluo village have been struck by lightning, and the villagers are full of fear of lightning, so this small mountain village is called "Lightning Village". In May 2008, the Meteorological Bureau of Hangzhou, Zhejiang Province organized an expert group to enter Wuluo Village to consult the "Lightning Village". During the negotiation, a 250-year-old camphor tree in the village was struck by lightning, and the branches 15 cm thick were cut off. The old lady of a family under the tree was knocked to the ground. Lightning protection instructions ① When it thunders and rains, it is forbidden to stay at the top of the mountain or in hilly areas, and it is also forbidden to continue to push up and watch the rain scene. You shouldn't hide under a big tree or near a telephone pole, and you shouldn't walk or stand in the open space. You should hide in a low-lying place as soon as possible, or try to find a room floor or a dry cave to escape. ② In thunderstorm weather, do not use umbrellas with metal handles, and take off glasses, watches and belts with metal frames. If you travel by bike, you should leave the bike as soon as possible and stay away from other metal objects to avoid being struck by lightning. ③ Don't go swimming, boating or fishing in rivers and lakes in thunderstorm weather. (4) In lightning and stormy weather, if tourists rest in the hotel, they should immediately turn off the indoor TV, tape recorder, stereo, air conditioner and other electrical appliances to avoid using electricity. It's safer in the middle of the room when it thunders. Don't stay under the electric light, and don't lean against posts, walls, doors and windows, so as to avoid accidents caused by induced electricity when it thunders. (5) when lightning strikes, the traveling companion should immediately take the patient to the hospital. If breathing and heartbeat have stopped at that time, mouth-to-mouth resuscitation and chest massage should be carried out at the scene immediately, and on-site rescue should be actively carried out. Don't rush to the hospital without rescue, otherwise it will delay the onset and lead to death. Sometimes, on the way to the hospital, we have to continue artificial respiration and chest massage. In addition, we should pay attention to keep patients warm. If you have mania, convulsions, convulsions and other mental symptoms, you should also do a cold compress on your head. For the part of electric burn, in the case of first aid, it is only necessary to keep it dry or bandage it. ⑥ When a thunderstorm occurs, even if a lightning rod is installed, unplug the indoor TV, refrigerator and antenna power supply quickly to prevent unnecessary losses caused by space electromagnetic interference. In addition, judging from the formation and occurrence process of lightning, lightning accidents mostly occur in open fields, the tops of buildings, tall trees, rivers, lakes, ponds and wet areas. ⑦ When outdoors, consider the lightning activity area and see the distance of lightning activity. Generally, you can judge the distance by listening to thunder. Don't hide under lightning rods and trees. Don't open an umbrella in an open place, because the umbrella has a needle tip and the electric field intensity should be concentrated. Don't use your mobile phone in an open place. Squat down and put your feet together. In case of thunderstorm, it is best to hide in buildings with metal doors and windows or lightning rods. The car with metal body is also the best "lightning protection place". Once these buildings or cars are struck by lightning, their metal frames or lightning protection devices or the metal itself will lead lightning current into the ground. Personal lightning protection 1. You should stay indoors and close the doors and windows; Outdoor workers should hide indoors as soon as possible. 2. Do not use electrical appliances with insufficient lightning protection measures, and do not use faucets. 3. Do not touch antennas, water pipes, barbed wire, metal doors and windows, external walls of buildings, and live equipment far away from wires or other similar metal devices. 4. Reduce the use of telephones and mobile phones. Don't swim or engage in other water activities, and outdoor ball games are not suitable. 6. Don't stand on the top of the mountain, the roof or other objects with high conductivity. 7. Don't handle flammable items in open containers. 8. Stay away from trees and masts in the wilderness and be at least 5 meters away from trees. 9. It is not advisable to carry an umbrella on the open space and a badminton racket on your shoulders. 10. It is not advisable to drive a motorcycle or ride a bike. 1 1. If your hair stands up during a thunderstorm, you should squat down and put your feet together to reduce the stride voltage.