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Hi Intoelectrics the speed of light is a constant (not a maximum) this information comes from various researchers working in different fields of radio/wireless . (which I did myself at one point.) The radio system we use in this day and age is according to my understanding essentially that developed by Marconi in an effort to circumnavigate some 17 of Nikola Tesla's wireless patents.
The present system is essentially parallel tuned into a resonant antenna , propagation is mostly via transverse wave via the ionosphere with a very small % ground wave, the assumed speed of propagation of the electromagnetic wave is the speed of light.
Tesla's wireless system however used series resonance and was tuned to a resonant ground antenna. propagation is mostly via the longitudinal wave via the ground plain. with a very small ionospheric % transfer. the speed of transmission is pi/2 x speed of light. Transmission being via the electrostatic wave
FYI here is that that transmission system described and demonstrated many years ago now by Eric Dollard although it been substantiated many times by different researchers .
faster than light
kind regards Duncan
I agree, in that the speed of light is a constant not a limit. However for all intent purposes it is a limit since information cannot be transferred faster than light else it would violate causality.
There are a number of effects that appear to be travelling faster than light:- the expansion of the universe at the far observable reaches where galaxies are accelerating apart the distance between them is increasing faster than the light can propagate. In quantum mechanics sub atomic particle pairs can be separated by large distances and once the spin of one particle is observed you know instantly what the spin of the other particle is. This effect is commonly known as "spooky action at a distance". But in both scenarios any useful information cannot be transferred faster than light so therefore causality is not violated.