The defiance of gravity by water and cloud building. The ground and the ionosphere induce secondary charge-layers in the atmosphere. In such a secondary layer cloud-building takes place. Generation of electricity in clouds is due not to the friction of neutral clouds on mountain ridges, or to the friction of neutral clouds among themselves, or to the friction of droplets by the gravitational pull on them, but to the fact that droplets rise already charged toward the charged layer of the atmosphere, and clouds are further subjected to induction by the ground and the ionosphere. This explains also the segregation of the charges in the upper and lower levels of the clouds.
