What will happen to people when struck by lightning?

It is a very dangerous phenomenon, not to mention the thunder which strong electricity flows along with explosive sounds and flashing lights (shiko)A cow who did not die without receiving a direct stroke of lightningAndA lucky man who survived from two lightning strikesThere is no guarantee that lives will be necessarily robbed by lightning strikes. What kind of thing is happening in the body of a person who actually receives thunder current?

What Happens When You Get Struck By Lightning
https://gizmodo.com/5936361/what-happens-when-you-get-struck-by-lightning

ThunderYou should think about some countermeasure at the point when you hear the thunderIt is regarded as being dangerous enough to be considered. Because a strong electricity of hundreds of millions of volts and hundreds of thousands of amperes is flowing instantaneously, people and animals may lose their lives just by thunder striking at close range, not directly hit.

Though such a terrible lightning strike, some people miraculously survived from the thunder in the world. William Hall, who appears in the movie below, is one of them, looking back at the time when refueling at the gas station "the current ran through the body."

Lightning Hits Man Caught on Tape - YouTube


Men in jeans appearing in the center, Mr. Hall. I just finished shopping at a shop attached to a gas station.


A few seconds after Mr. Hall left the store, the shop was hit by a strong flash as the image of the camera got pure white.


The moment of lightning strike captured by the camera outside the store. Although I think that there are not many people when there are people in such a place, there was Hall in here.


At that time, Mr. Hall who had put gasoline in the self-refueling machine collapsed from his knees ......


It seems that he fell asleep and fainted.


Hall says the situation at that time. "The last thing to remember is that you could see the white light next to the orange light, then afterwards I found that the front of the eyes became dark and my consciousness faded, but electricity to the body I remember what I ran, "she recalls the moment of electric shock.


Apparently it seems that thunder fell to the store itself, Hall seems to have avoided direct hit. People around me came immediately, but he seems to have lost consciousness for five minutes. Even so, it is unfortunate that the refueling gasoline did not ignite.


The human body is basically a "conductor" that passes electricity. Thanks to that, information is transmitted and received between the brain and the body, and the muscles are also subjected to electrical stimulation to create movement of the body. In other words, creatures including humans can not live without electricity flowing to their bodies, but flowing too strong electricity like thunder will cause great damage to the body.

Lightning is a phenomenon caused by the static electricity of grains of ice collided in the clouds in the sky. When the amount of electric charge accumulated in clouds exceeds a certain line, the insulation of the air layer which should not pass electricity is broken, and by discharging against the ground and the surface of the earth It discharges accumulated electric charge. In that case, the voltage ranges from tens of millions to two hundred volts, the current ranges from tens of thousands to hundreds of thousands of amperes, which is a tremendous average of 900 gigawatts when converted to electricity, but the discharge is completed in a few thousandth of a second , It is almost impossible to use it as an electric power source to support people's livelihood.


When strong electricity flows to such a degree, the molecules of the air which is the route reach the temperature of several tens of thousands degrees and become the plasma state as well. Also, as the temperature rises instantaneously, the air suddenly expands at a speed that exceeds the speed of sound, causing a shock wave, which causes a thunderstorm.

It is hard to imagine that this thing will be serious when this lightning strikes pass through the human body. Generally, when lightning passes through the human body it is known that it passes through a part of the leg close to the ground from a part close to the head, but the periphery of the entrance and the exit of this electricity is sudden air overheating It is said that burns may occur. Also at this time, clothing and shoes may blow away due to the impact of the discharge. Furthermore, on the part of the skin where electricity flows, a pattern similar to lightning remains, also called "Lichtenberg figure".

It may be said that "When lightning approaches, if you remove metal objects such as earrings and necklaces, the danger decreases", but this is said to be incorrect. Since thunder falls basically to a place higher than the surrounding thing, even if there is metal with high conductivity, it will not be attracted to it. However, unfortunately if the thunder falls near the body or oneself, it generates heat due to the strong electricity flowing to the metal which is easy to pass electricity, and the damage of the burn may be severe. Rather, for this reason, It is better to remove them. To put it in theory, it can be said that the sports "golf" performed by swinging up a metal stick to a high degree is a very bad compatibility with lightning.

ByNeville Wootton

Even if you do not receive a direct hit, some thunderstorms may be affected by flowing through the ground to the human body. One of them is a phenomenon that the movement of the muscles of the heart is adversely affected. Strong lightning electricity flows through the nerve responsible for the heart and its movement, causing abnormal electrical stimulation to be delivered to the muscles of the heart, sometimes resulting in loss of human life due to inability to deliver blood by the original movement.

French electric company "France power"Dr Elisabeth Gourbière stated," The injury and illness caused by lightning strikes is diverse and various symptoms appear. " Furthermore, it is stated that the most dangerous and fatal high symptoms are symptoms related to the heart and nerves, and as soon as possible to help the person who has undergone a lightning strike, perform cardiopulmonary resuscitation and receive medical treatment promptly Explained that it is the only way to save the life of victims in a state of cardiopulmonary arrest and to reduce the adverse effects of hypoxic encephalopathy due to respiratory arrest.

ByRory Mizen

In addition, it is said that the method of mitigating the damage caused by lightning strikes is not to get hit by the thunderstorm first and foremost. Remember the method called "thunder squatting" that will be taught at overseas schools, etc. in addition to the basics such as "Do not run under the tall tree", "Do not run away under the eaves of the building", "Leave from the water's side" It looks good. Lightning squatting means squatting down by lowering his head, standing with a toe, and further sticking heels of both feet. Lowering the attitude reduces the risk of the thunderbolt itself, even if electricity comes from the ground by any chance, it is a self-defense technique that incorporates the idea of ​​returning electricity to the ground through a stuck heel.

It is dangerous if you do not know! Evacuation method from lightning and necessary lightning countermeasures | Kemeko's weblog