http://candles.org/candle-science/
I have sometimes wondered why a candle appears to flare up just before it goes out. Too little or too much fuel or air can be the culprit as its combustion engine is not as efficiently operating with too much or too little of either fuel or oxygen. This final wick flare-up in a candle's physico-chemistry is a phenomenon that I dare equate with American politics in Donald Trump's era.