Anton Sherwood <bro### [at] poboxcom> wrote:
> A mere doodle, playing with refraction.
> The innermost ball has ior 1/2, the next 3/2 and so on up.
>
> Placement of the sphere centers:
> r = sqrt(N)
> theta = sqrt(4*pi*N)
>
> --
> Anton Sherwood, http://www.ogre.nu/doodle/

It's a nice doodle mate, no doubt about it, but I'd be intrigued to hear
about the material that has an ior half that of a vacuum. ;)

L
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