Re: Light slower than CG?

ReGenesis0@xxxxxxx wrote: 
It's my (admittedly rude) understandign that under some cirsumstances
(such as within certain types of nuclear reactors) the situation can
occour when light travels slower then electrons, this somehow relating
to the... something-something (resistance isn't the word...) of the
material it's traveling through.

The refractive index of a material (not just nuclear reactors) determines the speed of light within that material, and it can be quite slower than the vacuum value, but it has little to do with the speed of electrons within the material (except backwards, sort of).

1) Is this correct, or am I off my nut?  it just somethign I read some
time ago.

You're not quite off your nut, though you aren't all that well centered, so to speak. Details can be hard to remember, which is why books were invented.

2) Do gravity waves (or, more preciecely, the propogation of the
observed force called gravity) slow down under those same
circumstances?

Refraction works because different materials can have different dielectric constants. The relevant property for gravity waves would be the gravitational constant, but all known materials (and the vacuum) have the same value, so no.

3) If yes, is the reduction proportional?  (IS the relative C still
equal to the relative CG?)


  What does "CG" mean in this context?

4) If no, are there other
cirsumstances/materials/[observed/thereticals] when gravity travels
slower than CG?  (Actually, I'd like to know this even if yes.)


  See above.

5) Have we spotted a graviton yet? (I last checked in 2004.) 

  NAFAIK.

Thanks for anyone who gives me time.  Sorry if I screwed up any
terminology.


  You can't learn if you don't ask.


  Mark L. Fergerson

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