Through The Lightning Discharges. Each pattern in the grain, regular or irregular, is primarily a record of electric current field lines, which above the field and also in a nearby underground emerged during lightning discharges.
Kila mfano katika nafaka, mara kwa mara au isiyo ya kawaida, kimsingi ni rekodi ya mistari sasa umeme shamba, ambayo juu ya shamba na pia katika chini ya ardhi karibu aliibuka Wakati yanayovuja umeme.