The photo may have been taken part way through the test, rather than at the end. The temp is gradually ramped up during the test

Nigel

On 09/09/2012 21:20, Alan Fletcher wrote:
Rossi report : the temperature of the outside cylinder is reported to be at 
871C max, 820C average.

Shouldn't it be glowing cherry red?

http://www.hearth.com/econtent/index.php/wiki/Temperature_when_metal_glows_red/



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