One of the possibilities of their development is, that the first Return Stroke creates the first column of expanding air, inside which occurs then to one or more subsequent strokes.
Moja ya Uwezekano wa maendeleo yao ni kwamba, kwanza Return Stroke Inajenga safu ya kwanza ya kupanua hewa, ndani Ambayo ni Hupatikana basi moja au zaidi baadae stroke.