Mechanics / Electrodynamics
April 8, 2014
thunderstorm, lightning, ball lightning, globe lightning, fireball, St. Elmo's fire, corona discharge, electric current, diffusion
Electric current is diffusion-caused motion of electrons from sites of a conductor with their relatively high concentration to those with relatively low concentration, by which motion the equalization of electrons’ concentration through the whole volume of the conductor is achieved. Corona discharge occurs on narrow and pointed parts of a conductor because of there-occurred balance disruption between forces of Fatio that push electrons to atoms (molecules) of the conductor and those of diffusion in favor of the late. Thunderstorm is an atmosphere-physical phenomenon that composes with the emergence in cumulonimbus clouds of electric charges in form of lightning and their further annihilation. Lightning emerges by the way of disengaging air’s atomic and molecular electrons during their ionization with solar radiation, association of freed electrons with water drops by forces of Fatio, gluing together of the electrified drops accompanied with electrons concentration grows on the surface of the new-integrated drops, formation between extremely electrified drops of electrons bridges, evaporation of the bridge-connected water drops, and integration of the electrons of the drops and bridges into a united corridor that is lightning...