How many the science explains an essence of atmospheric electricity, all the same people shudder at lightning discharges and involuntarily contract waiting for a thunder peal. Obviously, in most of people tells memory of the far ancestors trying to find though some protection against heavenly fire.
There is nothing supernatural in atmospheric electricity, certainly, but from it lightnings and peals of a thunder following them do not look less impressively and terribly. So actually the lightning represents? As is well-known from a school course of physics, all objects have quite certain electric charge. Collision among themselves of charged particles leads to creation of big areas of positive and negative charges. When such areas appear rather close from each other, there is a breakdown and in the created channel charged particles direct. People also perceive this breakdown as lightning discharge.
If with the lightning more or less clear then why after it the terrifying roar reminding an artillery cannonade comes? The same physics convinces people that electric current cannot be seen, heard or somehow differently to find, except for special devices.
As it appears, everything put - in air rather in its properties. The fact is that, being, in fact, the insulator, at the time of breakdown it is warmed up to the temperature about 30,000 wasps. And the speed of a warming up and according to expansion of the air environment extends vzryvoobrazno that leads to emergence of a shock wave which human hearing also perceives as a roar or a thunder. Therefore, the lightning and a thunder are indissoluble as the thunder is result of a lightning. A talk that allegedly there is a lightning without thunder and vice versa – is groundless. On the other hand, exists a lot of inexplicable connected with lightnings and their manifestations. Such types of lightnings as linear, shnurovy, cordlike, tape are rather known and rather well studied. In turn, they are uniform and branched. The most mysterious and still up to the end unexplored lightning – spherical. The greatest number of the strangenesses and riddles as documented and unproven is connected with it. It was repeatedly noted by many eyewitnesses that the lightning flickers. The fact is that the lightning consists of a set of consecutive categories duration only several dozen million fractions of a second. It also creates effect of blinking. Lightning discharges happen as between separate storm clouds, between a cloud and the earth, and sometimes the category for not clear reasons goes vertically to the sky. As for the lightnings proceeding from clouds to the earth, two of their types positive and negative are known. And, according to scientists, as more powerful lead positive categories to the fires.