🚀 go-pugleaf

So, NOTHiNG ("not ..any THiNG") changes speed with NO force.?!!
So, light "just STOPs being slowed down", buffoon.?!!
Git.!! Get-like OUT of TOWN ..dooOP.!!
             brian a m stuckless

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Tom Roberts wrote:
> Nick wrote:
> > If it is absorption and reemission [...]
> 
> It isn't.
> 
> > And if it isn't that atoms absorb and emit then it must be [...]
> 
> It isn't that, either.
> 
> Light slows down in a transparent material due to the interactions with
> all the charged particles in the material (electrons and nuclei). Each
> photon of a light ray interacts with each and every charged particle in
> the material, with interfering phases determined by the usual propagator
> and anti-symmetrization over Fermions (c.f. QED). In a material with
> constant density of charges, the phases interfere such that the
> wavefront slows down.
> 
> > If light really does slow down then how does it speed back up?
> 
> Because there are no longer any charged particles to interact with the
> photons, there is no phase interference to slow the wavefront down.
> 
> > How does
> > light accelerate upon exiting a medium?
> 
> It doesn't. In essence it just stops being slowed down by the medium.
> This is not the change in speed of any THING, and there is no "force"
> involved.
> 
> Tom Roberts     tjroberts@lucent.com
Re: What is it about matter that slows light?
Re: GR-buffoon Tom Roberts: GR-nothing ..not any GR-thing.!!