visible light - Why is the bottom part of a candle flame blue? - Physics Stack Exchange
What’s the explanation behind the bottom part of a candle flame being blue? I googled hard in vain. I read this. I don’t understand how it’s explained by the emission of excited molecular radicals
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Why is a candle flame round and blue at zero gravity? - Quora
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Why is fire blue at the bottom of the flame? - Quora
Why is a candle flame round and blue at zero gravity? - Quora
