When light passes through various mediums, it slows down. Then something interesting happens.
After the light waves have passed through -- glass, for example -- and it returns back into the atmosphere, it speeds back up again to "light speed."
In the Electric Universe, the speed of light, which appears to be a physical constant, is actually dependent on the medium that carries the electromagnetic waves. And just like the changes in the velocity of light as it passes through a glass of water, the velocity of light in interstellar space is carried by a medium that gives light its characteristic velocity.
This was expressed mathematically in Maxwell's equations in the following way:
- Vem = 1/ √μ0ε0
where Vem is the velocity of the electromagnetic wave,
μ0 is the permeability and
ε0 is the permittivity
of the bulk material through which the electromagnetic wave passes.
Wal Thornhill often expressed that Einstein was incorrect to remove the medium.
At any rate, the permittivity and permeability of certain gases and other materials are used in various technologies, like lightning arrestors, and are extremely helpful in handling high voltage spikes. The permittivity and permeability of material is a lot more useful and applicable than Einstein's speculative speed limit.