All actions, that were created by a jump change, what is lightning discharge, too, tend to spread as waves or oscillations, whose boundaries are very accurate spherical shapes, and in the case of projection into a plane or operating on a planar surface create very accurate circle. As an example can be used spreading of a shock wave in the air, observable after a nuclear bomb explosion under favorable meteorological conditions. (photo).
Wote vitendo, Hiyo viliumbwa kwa mabadiliko ya kuruka, ni nini umeme kutokwa, pia, huwa na kuenea kama mawimbi au oscillations, nani mipaka ni sahihi sana spherical maumbo, na katika kesi ya makadirio ndani ya ndege au juu ya uso wa uendeshaji planar kujenga Sahihi sana mduara. Kama mfano inaweza Used kueneza ya wimbi mshtuko katika hewa, imethibitishwa baada ya nyuklia bomu mlipuko Hali ya Hewa chini ya hali nzuri. (Picha).