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what a bout if one is 1cm and the other 5cm . the same temperature..
if we have two iron bars one is 5 mm thickness and the other is 10 mm and we heated both with same teperature...so which one will glow red and the other is blue. and why...
what type of hard metal when heated it will glow blue.....?
I feel that what Taregg might be doing is heating the metal in a gas flame and noting the effect on the colour of the flame, here the thickness might well affect the result.