"Jim Lux" napisal w wiadomosci
...
Szczepan Bialek wrote:
.

But I am steel loking for the evidences that the speed of radio waves is
temperature and wave lenght dependant.

in vacuum, of course, there is no dependency on wavelength.

in a dispersive medium, there is a dependency on wavelength. A good
practical example of a dispersive medium for radio is the ionosphere.

interplanetary space also is very slightly dispersive (due to the small,
but non-zero, ion content)

Inasmuch as temperature and ionization are related, I suppose there's a
relation, but nothing like you see with sound, where there's a very strong
relationship between propagation velocity and temperature (but that's
because the mechanism of sound propagation is molecules/atoms colliding
with each other)

If Tesla is right than the radio waves propagation is electrons colliding
with each other.
Faraday was the same opinion: "I suppose we may compare together the matter
of the aether and ordinary matter (as, for instance, the copper of the wire
through which the electricity is conducted), and consider them as alike in
their essential constitution; i.e. either as both composed of little nuclei,
considered in the abstract as matter, and of force or power associated with
these nuclei"

Faraday known that the speed of waves is the same in copper and space. The
media must be the same. Charged particles = electrons.

Analogy sound - electric waves is full.
S*