The premise falls apart right here. Friction and curvature are not related.
Example: the moon orbits the earth. The curvature in space is created by
force of gravity, not friction. Even in a hypothetical friction-free
system, curvature will occur if forces are present. Of course, it is a
little more complicated than just this, but the bottom line is that forces
are responsible for curvature. Friction IS a force, but it is not
applicable in the sense you are using it.
>If light is affected by friction, then by curving,
> it would lose some of it's velocity.
>If light lost some of it's velocity and remained light,
> it would prove that some light travels faster than other light.
>I would guess ultra-violet is FTL.
>Educate me.
>
-James Rogers
jamesr@best.com