Abstract
UDC 551.594.2
Using the analogy between the charged drop hanging in an electrostatic sub-weight and the ball lightning with an electric charge and floating in the air in the superposition of gravitational and electrostatic fields, two pheno-mena differing only by the role of the Archimedes forces conclusions are made concerning the role of those or other physical properties of ball lightning in the peculiarities of its movement and existence. It is shown that at the fixed physical parameters of ball lightning its radius cannot exceed a certain size. The same can be told about the relation of the density of the substance of ball lightning and environment, and also about the value of its coefficient of a superficial tension.
Keywords: ball lightning, charge, density, surface tension.