Lightning rod houses, high buildings and industrial plants, protects from lightning, lightning from the shortest path to the electricity from the device to the device. Lightning can be explained as a rapid change of electric charges between the earth and the cloud. Lightning strikes most places where the conductivity of the air is greatest.

The first person to find out that electrical charges have positive and negative values ​​is called Benjamin Franklin strong> In 1760, he invented the first lightning. This lightning rod came from a simple pointed iron rod. This iron bar is tied to the ground. Platinum was used later instead of this iron rod. Franklin invented the lightning striker in September 1752 on the northern edge of his house in Philadelphia. The steel tipped iron rod was raised 2.5 meters from the roof.

A year and a half ago, Franklin unveiled his theory of how lightning is electric-powered, before he put his paratrooper into his home.

An amateur french physicist named Dalibard spent his life. M. Dalibard has put on a lightning rod for experimentation in the country house in Marly-la-Ville, 25 kilometers away from Paris. On May 10, 1752, this lightning rod at a height of 25 meters pulled a lightning bolt on the building and sent it to the ground, so that Franklin’s hypothesis was verified in such a way as to leave no room for speculation. Before this result reached America, Franklin made a famous kite experiment on July 4, 1752 and proved the truth of his assumption to himself.

In 1884, the Belgian physicist Melsens took his place to the Faraday cage. There are a number of metallic metallic strips on the surface of the protected building. These are connected between each other. At the top of these there are some pointed ends, all grounded. The safety of this protection system depends on the fact that the eyes between the nets of the cage, which is formed from metallic lines, are small. The smaller these eyes, the greater the protection safety.

But Faraday cage protection is an expensive safety system.

Radioactive lightning rod h2>

M. Davzere and Sazillar. It has been determined that the air is highly ionized in places where the lightning storm has occurred. In this sense they have shown that it is possible to make a lightning rod using a single rod. Said rod is equipped with radium and its effect is increased, and later the accelerator system is added to increase the yield of the lightning rod.

Radioactive lightning arresters have been developed using the Franklin principle. Lightning was made to any desired point and then to emptied it to the ground. This similarity in principle changes in working principle. The Franklin lightning rod produces a small amount of ions, whereas the radioactive lightning rod emits a large amount of ions. As an example, one milligram (mg) of radium may be said to have emitted 2.8 × 1013
double ions. On the other hand, this method plays an effective role in decreasing the cloud burden because it multiplies the ion current emitted by the lightning rod with a coefficient of million values.

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