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From denny1@home.com:
I like the ball floating in the water, its a nice touch.

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From Alain.Culos@bigfoot.com:
I'm not sure you really went for the topic there, sort of side tracked a bit.
Nice picture though.
A pity the water does not look like it's whirling.
I'm not sure what you wanted to prove is proven there just by looking at the
thing, but mathematically, to take into account the ior, there is no choice but
get total reflection below certain angles, so my guess is there is no way pov
can be wrong on that one.

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From shipbrk@gate.net:
Nice-looking work, especially the cavitation around the whirlpool's funnel.

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From caleb@chemeng.uct.ac.za:
Amazing image

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From houston.graphics@iname.com:
The water vortex if brilliant, the bubbles really set it off.

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From ethelm@bigfoot.com:
The 'whirl' is wonderful.

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From gshaw@monotix.co.za:
Love your whirlpool. Been trying to do that myself for a while.

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From mar@physics.usyd.edu.au:
A very nice whirlpool - the impression of really being under water is good. My
only real query is the relation to the topic seems a bit tangential.

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From jull43@ij.net:
A quite pleasing image in the water although I don't know what a waterwhirl is
and it does not appear to spiral down but rather as concentric rings. Nor am I
certain what it has to do with the theme save for the grossly distorted sky
above. 


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From r@209.155.62.50:
you should see what happens when ior<0.  hm, if ior were an imaginary number,
the ray would be deflected sidways ...
Notable for composition, originality