Colored Fire

Have you played with fire before?  How about colored fire?
I was literally marveling at its beauty for 30 minutes straight (see beautiful pics below)!  The natural color of a fire is partly determined by its black-body radiation level (a red flame is cooler than an orange flame is cooler than a yellow flame is cooler than a white flame).  Using chemicals, we can change the atomic emission spectra of soot and gas to change the colors of the fire we see (ref: popsci, wiki - colored fire, wiki - black-body radiation).




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