## The revealed secrets of classical electrodynamics

The internet provides information about Tesla's energy technology and free energy devices in general, for instance the Swiss Testatika machine, see picture. This information has been kept secret for civilians for almost a century. Officially, the longitudinal electric Tesla waves, electrostatic energy flow and electrodynamical overunity devices, are nonexistent. Yet more and more people are convinced these phenomena exist. What seems missing is a consistent mathematical theory that offers a rational explanation for this very important technology. There are many ideas and most of them are not expressed in exact mathematical form or do not have a clear relation with mainstream science. On the other hand, the official scientific theories do not offer much explanation either, with the exception of Stochastic ElectroDynamics (SED) that defines the Zero Point Field (ZPF) as a natural energy resource.

The revealed secrets of classical electrodynamics