From: "ChemE Stewart" <[email protected]> Sent: Wednesday, October 15, 2014 11:08:42 AM
> Me too, good job. Tube in a tube reminds of the model rockets I used to > build. Fin supports between tubes might explain the wider dark band seen as a > spiral?. Do you think a lot of the heat might be discharged in a space > between tubes and out the ends? Or are the ends completely sealed? The fins are too fine to be a source of the bands. And the ends are completely sealed, so the temperature and heat-loss will taper off at the ends. But your .. and your, and your ... guess on the structure and the banding is as good as mine. Very frustrating.
