For some, the zipper is a clasp, for others a designation of how fast I have to run to the store, and for the third — what is drawn on the grill of their German car or on the forehead of Gary Potter. But for most lightning is still the most natural phenomenon that occurs during thunderstorms, and of great interest to photographers. Really lightning is beautiful and fascinating, but most know about them only what is enough to stop be afraid of them, as did our ancestors hundreds of years ago.many fear they are now. In this article we will talk about interesting facts about lightning, and what they really fear.
Statistics of lightning strikes
You’ve probably guessed that the lightning have a very high temperature, but I’m pretty sure most people didn’t even imagine that it is five times the surface temperature of the Sun and reaches nearly 30,000 degrees Celsius. Of course, this is an approximate value, but the excess is definitely.
The velocity of propagation of lightning reaches 56000 km per second. I mean, just for one moment, she can do almost half a revolution around our planet. The average time of discharge is about a quarter of a second, and the average length-zipper — 9-10 kilometers.
Much less hurried are thunderstorms, which are like lightning. They move in an hour only 40 km away, But every second in the world 1800 rattle of thunder, and every second on the planet’s surface has according to various estimates from 40 to 60 lightning.
If you thought that lightning, as the saying goes, never strikes twice in one place, then you were wrong. It’s very common. Especially if the storm is not moving very quickly. The opposite opinion was formed just due to the fast movement of the thunderstorms. In this case, the lightning just did not have time two times hit in one place.
Dangerous if hit by lightning for a person
But to the question ”can you survive after a lightning strike,” there is no single answer. More precisely, it sounds like a ”maybe Yes, maybe no.” Approximately 25 percent of those who got struck by lightning die. Actually it’s not much, given the characteristics of this phenomenon. the Problem is that in the case of survival, there is a risk of serious damage to organs and nervous system. Among the side effects can be mentioned loss of memory, loss of sensitivity, sleep disturbance, impaired sensation and pain that persist for many years.
Accurate global statistics of lightning hits the world hard to find, as in some African villages it is just not maintained. But there are statistics on Russia and the United States. In the first case, about 500 people per year, and the second — 200 people per year. ACCORDING to some estimates the chances of dying by lightning is one in two million. With the same probability to die, falling out of bed. What to do with this information, decide for yourself.
A bit ambiguous data say that in men the lightning hits about 6 times more often than in women. Most likely, this was not about mysticism or what you think. The most likely explanation is that men more time on the street. Especially in the fields during agricultural work, where they caught the afternoon.
While most lightning strikes to people not in the midst of the storm. According to the national weather service, lightning can ”reach” from a distance of 15 km. So if you hear thunder, you are already in potential danger.
And don’t stand next to the cows and oak trees. According to the signs, next to the cows the chance of being struck by lightening is higher (logically, after all, killed the shepherds who couldn’t leave the herd and keep up on the street) and oak zippers often get just the statistics. As such there is no defense,in some sources is found in the middle of the last Millennium, ladies wore hats, which were of metal, and the earth was dragging the wire. This here is a portable lightning rod.
And they say that if clothes are wet, the lightning will cause less harm. Most likely, it will occur as in the case of lightning strikes a car.
Is it dangerous lightning in the car, plane, house
Here, too, it is difficult to give a definite answer, but if technology everything is OK, and building is a lightning rod, it is rather safe. There are even statistics that aircraft lightning strikes on average every seven to ten thousand hours of flying time. It’s fairly common.
In the case of the car getting too safe. The fact that the body is essentially a Faraday cage. The charge passes through it and does no harm to the man inside. However, it can damage electrical equipment. The aircraft is more reliable. The fuselage has additional security elements, which conduct electricity through it on the ground. A lightning strike to the aircraft is not a freelance situation. Just checks the system and if all goes well, the plane continues to move.
Faraday cage — a device invented for shielding equipment from external electromagnetic fields. Is usually a cage made of conductive material. The cell may conduct current, reducing the impact on the equipment inside.
A lightning rod in the houses is a made above the roof element, which is connected to ground and is securely isolated from the building structure. Since the zipper is on the shortest path to the ground, she enters this element and safely discharged without causing harm to other objects. For example, we can say that the world famous Empire state building lightning strikes about 25 times a year. Lightning decides.
There is usually no sense to put lightning rods on every house — just one at a relatively large area. Of course it needs to be at the highest structure or special rig.
Why is thunder heard after lightning
Surely the answer to this question, many of you know, but without it the story would not be complete. There is enough to go into physics and the answer will appear by itself.
Thunder and lightning occur at one point. The thunder is the result of allocating a large amount of energy in a lightning strike. You’ve got to understand that thunder is sound and lightning is the light. The speed of propagation of sound waves at the Earth’s surface is about 340 meters per second. The speed of light is 300,000 kilometers per second.
At a rough calculation it can be assumed that light reaches us instantly without any delay, and the sound is 340 meters per second. In summary, multiplying the number of seconds between the flash and the way we hear thunder, 340, it is possible to obtain the distance to the lightning in meters.
Lightning and the planet
Lightning can appear not only on our planet, but on the other, if there are favorable conditions for their formation and gas environment. So, lightning can be seen on Saturn, Uranus, Venus and Jupiter. On some of these planets lightning in hundreds, thousands and even millions of times more powerful than earth’s.
However, even on the Ground when lightning strikes the sand in it then you can find strips of glass that are formed from such exposure. However, this is true only when ordinary lightning. Ball, this effect will not give. And to see her is rare. Likely to do this at least once in your life is less than one chance out of ten thousand.
It would seem that our planet is three quarters covered with water and that the water needs to beat the lightning. But it’s not. Over land formed a powerful convection air flow and 80 percent of lightning strikes in a hard surface.
In General, the surface of the Earth reaches only a quarter of the lightning. The rest are discharged between the layers of air masses at different heights.
Lightning in people’s beliefs
These beliefs are many and to list all makes no sense. Will only highlight a few, the most interesting and more or less confirmed.
About cows and likely to die next to them I mentioned above. But there’s a scientific and statistical explanation, and the fact that in the middle ages lightning chased bells, there is only religious. It was believed that the bells expelled evil spirits, and the thunder and lightning was the manifestation of evil forces. That is why during a thunderstorm, tried to ring all the bells, which have only been in the village or town. This led to the fact that the victims were often ringers, as churches and temples have always been the tallest buildings in the area. Perhaps it would have helped a Bay leaf, but its protective properties from lightning believed only the British.
Lightning helped to nucleate pearls. At least this was believed by the ancient Greeks, believing that his appearance is a result of a lightning strike to the surface of the sea. And the Aztecs believed that lightning helps the souls of the dead easier to be in the depths of the earth. They thought that she breaks down the land, accompanying the dead in their difficult path.
Where are the lightning
Now the answer to this question is unequivocal. They appear from the atmosphere and are discharge between the layers of air or layer of air and earth. Sometimes they hit the ground, and sometimes between the layers of the atmosphere, but to the modern educated person’s stuff. But before people that did not come up.. the Most famous character is Zeus the God of sky, thunder and lightning in Greek mythology. He was not only chief of the gods, husband of Hera, and brother of Poseidon, but also was in charge of the world. That is, he was the chief God. In Roman mythology he was identified with Jupiter, the Slavs was Perun, and the Scandinavians Thor.
There were other beliefs, but they usually were local or based on local beliefs of the character. In the first case, it was a weapon of some mystical creatures living in the cave, the valley, Harbor, and other places that didn’t want to him someone was approaching, and thus protected their possessions. In the second case, it was the belief in the wrath of the local gods or Vice versa warning light of impending trouble.
Options always had a lot, which is not surprising as to explain the principle of operation of a lightning without a knowledge of physics and its division of electrical, it was simply impossible. So people come up with that is not falling, in fact just sharing their fantasies.
Why are people afraid of thunderstorms and lightning
As a final fact in this article, I will give the reasons for the fear of thunder and lightning nowadays. First and foremost, it should be noted that such a fear is called brontophobia and is most common in young people under 25 years old and mainly girls.
Most cases of fear of thunderstorms is common in children but not rare cases when this fear sweeps through life, almost unabated. This can even occur due to a single severe fright when the child was found with this phenomenon, not being ready and not knowing anything about it.
The thunder have a certain tone, which is perceived on a subconscious level, and a bright flash of light in the dark, when the night lights up like day, but a purple glow, causing even more fear. Especially it is actual for children up to four years who just don’t know what to expect from a new phenomenon.
There are also genetic time, because our ancestors were not as protected as we are. They had no understanding, about which I wrote above, and reliable home. Wooden and straw houses were burnt down by lightning, trees falling, and people were often killed on the spot.