napisal w wiadomosci
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On Apr 7, 7:53 am, "Szczepan Bialek" wrote:

The same speed of electric disturbances in copper and light in space was
the
physical examples for the idea "no aether but vibrating particles".
"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'. From: http://www.padrak.com/ine/FARADAY1.html

In above Faraday use the word aether but he explains what it is made of.
Today we say space. Space is filled with ISM.
S*

but in vibrating particle waves like sound waves the speed of the wave
is very dependent on the density of the material.
with sound waves the waves travel faster in dense material, compare the
speed of sound
in air and a metal bar.

No. The slowest is in rubber. Speed is the elesticity modulus dependent.

with electromagnetic waves that is backwards,
they travel slower in dense material and fastest in a vacuum.

For electric waves electrons are the medium. Ions are like the sand or fog
in air for sound waves.
S*