Generalized Leonardo da Vinci Rule for the Discharges, Sliding on Electrolyte Surfaces

Photo images of branching discharges and sliding on electrolyte surfaces are presented. Based on the analysis of these images, the diametrical index for the generalized Leonardo da Vinci rule is calculated. It turns out that the value of the diametric index is close to 0.7. We attempt to explain such a low index value.