• Question: Why is fire sometimes blue?

    Asked by Milosz to Jason on 16 Nov 2019.
    • Photo: Jason Mc Guire

      Jason Mc Guire answered on 16 Nov 2019:


      Different visible lights have different amounts of power ( or irradiance ). Sometimes when you look at a fire it can be green/blue at the bottom this is where there is more power in the flames and the top of the fire or weaker flames are red/yellow!

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