Candle technology hasn’t changed much in thousands of years—you add fire to a wax-soaked wick, and it provides light for hours. It’s simple, it’s effective, and it doesn’t need an upgrade. So of ...

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Candles are useful for many things; light, for instance, they can also make a room smell nice, and they can definitely set the mood, but we are not setting the mood today. We are going to do science ...

The plume visible after extinguishing a candle flame is a stream of unburned fuel particles rather than smoke. It is powered by the residual heat of the wick. This can be tested by collecting the ...