Re: speed of light versus c, again
- From: "PD" <TheDraperFamily@xxxxxxxxx>
- Date: 28 Dec 2005 14:15:55 -0800
argon wrote:
> it seams that the most selfestablished around here
> still consider c the speed of light in vacuum as the max
> speed in anywhere
>
> but they know they are wrong becus group velocity can
> reach infinity
>
> they argue sayong that group velocity carries no info, but
> who cares if it does, the issue is the max speed c existing
> group/phase velocity is a very existing velocity
Who cares? Physicists care.
They're very careful to explain what c is the maximal value of, and it
does not include things like phase velocity or closing speed.
http://scienceworld.wolfram.com/physics/Superluminal.html
It is only the idiot who hears a snippet and misfires back
triumphantly, "Physicists say c is the maximal velocity of *anything*,
and that CAN'T be right, and therefore physicists don't know what
they're talking about."
PD
.
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