On Wed, Feb 27, 2008 at 7:54 PM, Máirín Duffy <[EMAIL PROTECTED]> wrote:
>  http://flickr.com/photos/xanin/327630112/
>
>  See how there is a very slight thin layer of darker blue outside the
>  brightest part? the brightest shape is never directly on the edge.


That picture is deceiving, you aren't really seeing the exhaust port
for the flame on a stove burner.  The bright part of that flame is
downstream where the flame comes into "focus" with itself, its not
that bright at the exhaust.

So if you want to have the brightest blue elements appear in the flame
to simulate a focus effect, thats cool.   But on the surface of the
cyrstal, the edge is relatively brigher than the center of the face.

-jef

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