Physics – Plasma Physics
Scientific paper
2009-03-28
Physics
Plasma Physics
14 pages, 7 tables. PDF. Reexamined and completed. Addendum
Scientific paper
The nature of ball lightning (BL) is pure electric and can be described by simple equations following to elementary considerations of equality of translational acceleration and velocity of the ions and electrons, a spherical-like dipole BL as a whole and balance of energy influx of atmospheric electricity and radiation losses. From these equations follows a linear relationship between the size of the BL and the tension of the atmospheric field E. A typical size of the fireball (FB) r ~ 5 cm corresponds to the calculated electron temperature T ~ 8000K at a pressure p = 1 at and the estimated velocity v ~ (0.1 - 4) m/s with a horizontal component of the electric field E ~ (36 - 140) V/cm. We estimate the energy of the BL and characterize the conditions of its possible experimental generation. The estimation is given of the surface tension of BL. The possibility of "hot" and the most realistic thermodynamic non-equilibrium "cold" BL is discussed.
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