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From tek@evilsuperbrain.com:
Awesome! Nice use of science to make art :)

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From zekaric@yahoo.ca:
Nice job on the modelling.  

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From zerozerozerozero@wyan.org:
A marvelous example of how POV-Ray specifically, and ray tracing generally, can
be used to visualize an idea in a way that goes far beyond simply mimicking
ordinary visual perception.  Thank you for an excellent entry.

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From enrique.sahagun@uam.es:
I have found this image extremely interesting (I'm physicist). I like it very
much.

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From p.gibellini@teinos.com:
Wow!
Amazing, I like it a lot.

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From diegocg@quipo.it:
Notable for technical/mathematical interpretation and 
work on the topic.

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From glenn@mccarters.net:
An important milestone in the history of "speed", but depicted in a =
coldly scientific manner.
Cool flow visualizations.  Seems to be really good modeling of the X-1, =
but much of this is lost in the shock waves.  Something really bothers =
me about the blue shock wave penetrating the text at the bottom of the =
image.
I think the overall image could be improved by making the two sub-images =
more symmetrical: eliminating the (quite well done) mach meter, keeping =
text the same color, removing the volume box on the right image, =
centering the top titles, and (most importantly) keeping the models the =
same size.  This would help tie the two images together better.