Ah, well, I searched etera in ReVo and got nothing other than Italian. Why didn't I think to search etero...?

ceigered:Basically if we're just talking about something with no gas/liquid/solid in it, we call it a vacuum.

By the way, if you believe in quantum fluctuations, it takes you back to the Aristotelian horror vacui - nature abhors a vacuum.

Lloyd

sudanglo:In popular parlance radio waves still travel through the ether.

Ethereal though in modern English means light/airy/delicate/insubstantial/heavenly.

There is no such thing as a void. The space is a quantum field, full of particles, fluctuations, gravity and so on. Even better - up till now no one realy knows what the space is.

targanook:

sudanglo:In popular parlance radio waves still travel through the ether.

Ethereal though in modern English means light/airy/delicate/insubstantial/heavenly.

There is no such thing as a void. The space is a quantum field, full of particles, fluctuations, gravity and so on. Even better - up till now no one realy knows what the space is.

I was much less bold and avoided making such definite statements. There's still a lot of work to do before we can say that we can KNOW any of this.

Okay, so, regardless of what the aether actually is, I know that etera means ethereal.

Lloyd

henma:
To explain this, the physicists created the theory of ether. Ether is, according to this theory, everywhere.

This theory could never be demonstrated, and now there are other explanations for the traveling of such waves. But, trying to prove this theory, physicist obtained several other interesting results (for instance, one of those experiments resulted in the first measure of the speed of light).

If you are refering to the Michelson–Morley experiment (1887 (interesting date for Esperanto! )), which tried to detect the ether flow, then no.
The first measure of the speed of light was way before that in 1676 by Rømer (according to Wikipedia).
The Michelson–Morley experiment is however very famous for validating the constancy of the speed of light (even though it didn't prove it), postulated by Einstein.
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Se vi referas al la eksperimento de Michelson kaj Morley (1887 (interesa dato por Esperanto! )), kiu provis detekti la etera fluo, tiam ne.
La unua mezuro de la lumrapido estis longe antaux tio en 1676 de Rømer (laux Vikipedio).
La eksperimento de Michelson kaj Morley estas tamen tre konata por validigi la konstanteco de la lumrapido (ecx se gxi ne provis gxin), postulata de Einstein.