Re: candle flame question

["Paul Camp" <pjcamp@coastal.edu>]

This is similar to what candle flames do in orbit due to lack of 
convection. Perhaps the air under the bell jar becomes of a pretty 
uniform temperature???

>       The flame when orange had the typical shape which tapered to a point
> at the top. As it turned blue the flame became spherical and lost the 
> top point shortly before it went out altogether.
>      I seem to recall that the orange color is sometime attributed to the 
> carbon particles that have not yet burned, i.e. the ones that make the 
> soot deposit if you stick a cool beaker in the flame. I can't stick anything
> in the flame through the bell jar so I don't know if soot is being formed.
>      Does anyone have an explanation of the shape and color ??
>         Jim Braunsdorf

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