Show phenomena of lightning all the phenomena of lighting Hili ting and all its forms are determined doubt less by the kind and amount ol 01 resistance it encounters its light Is due to the resistance ol 01 the atmosphere its noisy and often terrifying but quite harmless accompaniment of hunder Is due to the sudden separ aaion and reunion of bodies of air from sudden heating and cooling and perhaps in part to the explosion ol 01 gases into which watery vapor Is de composed by the intense heat of elec elee cical flash flashes As the result of such ex being their recombination in he proportions of water |