In the oiginal parity alternates. i.e. alternate circles are mirror 
images...
DLM

"Stephen" <mcavoys_AT_aolDOT.com> wrote in message 
news:web.4507c12af549e6aff1cb1e660@news.povray.org...
>I saw this optical illusion in one of those chain emails and I thought that
> I would try to reproduce it in Pov-Ray. But it's not quite right. Can
> anyone point out what I've done wrong.
>
> Stephen
>
>

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