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

combustion - Would blowing someone else's candle out make mine shine brighter? - Physics Stack Exchange

Make Your Own Spectroscope, Spectroscopy Science Fair Project

Why is a candle flame round and blue at zero gravity? - Quora

Why is fire blue at the bottom of the flame? - Quora

What are the ions in a candle flame? - Quora

Candle flame, UV, visible and IR images, Images from the le…

What does it mean when the flame of a candle burns low and blue? What is this telling us? - Quora

Why is flame blue closer to the wick of candle? : r/chemistry

The Longest Minute

electricity - How are cold sparks possible? - Physics Stack Exchange

Which is the hottest zone in a burning flame? Why? - Quora