[USMA:10617] Re: slowing down the speed of light

[Gene Mechtly]

On Tue, 23 Jan 2001, Gregory Peterson wrote:
> 
> ... could this now mean a new definition for the metre is required?
        No.  The "group velocity" of the pulse was slowed.
             The "phase velocity" of each component was still c (in vac).
Gene.