Wednesday 1 August 2012

Lightning


The fact that the person is afraid of lightning is not surprising is the instinct of self-preservation. Lightning has such force that it instantly heats the air up to 1500 degrees. The result is comparable with the explosion. In the heated atmosphere very quickly there is a lot of pressure under his influence creates vibrations in the air, and we hear the thunder .Lightning
Thunder itself is not terrible. The main danger is self discharge.
Every year the Earth strikes nearly 32 billion lightning. That caused the damage is estimated at $ 5 billion.
Even in ancient times, people were rescued from lightning strikes with spells in the Middle Ages helped them bells, and only later became clear: to protect against lightning, we must understand its nature. This was first made man, whose portrait adorns the hundred dollar bill, Benjamin Franklin. That is, he proved that lightning bolt - a discharge of atmospheric electricity. Franklin waited for this storm and launched into the sky kite. To the "tail" attached metal key. During thunderstorms, snakes electrified wet rope led electricity to the key, and it sparkled. Lightning - The discharge of electricity.
LightningThe idea of ​​building lightning protection also belongs Frankliny.
Today, there are recommendations on how to protect yourself from the celestial elements.
When lightning should avoid close location to the internal wiring, drains from roofs, antennas do not need to be next to the window, immediately turn off the TV and other appliances.
In the forest, hide not from the storm under the tall trees.
If a person is near the reservoir, to possibly move away from the coast, down from an elevated place in the lowlands.
Should not lie down on the ground if there is no shelter nearby, such as in the field, putting an electric current your entire body, you need to find a groove (ravine or gully) and sit down on his haunches, his head in his hands.
From metallic objects and mobile phones, it is imperative to get rid of for a while peals of lightning.Lightning
Sometimes lightning itself sorry man. It is believed that the element affects 5 to 30% of the total number of victims.
Some geographical locations are special "arrangement" of lightning. For example, in the town of Tororo in Uganda 250 thunderstorm days per year. This is a world record. More often such storm activity due to trivial climatic conditions. Where the climate is warmer and more moisture there and more storms. In the tropics, for one night only recorded about 3,000 lightning strikes. In central Russia to this figure, thankfully, far away. But not always lightning activity can be explained by climate. Our earth is a place where lightning strikes punctually and without any reason. People say: "gromoveschie place." Some scientists believe that in these areas attract lightning to his underground water reservoir or metal. This, by the way, the robbers used a Scythian burial mounds. During a thunderstorm, they were watching, which most often strikes lightning, excavated in these places and found there treasure. However, it is possible that this is just a legend.Lightning
In South America, there is a river Catatumbo. Lightning appear there at night more than a hundred times a year, lasting up to 10 hours discharge, illuminating all around. This phenomenon is even called the "Lighthouse of Maracaibo," the name of the lake, into which the river flows.
Fireballs for human remains - a complete mystery. In the scientific world, there are about a hundred versions of this bill.
Very dangerous, terrifying natural phenomenon - lightning is also a very beautiful and mysterious.


No comments: