Everyone knows, we need a heat source like a match box or a lighter to burn a candle. But how does it keep is flame for a long time, you may not know.
Actually, when you light the candle’s wick with the match sticks, wick melts and vaporizes a small amount of wax of which candles are made of.
Once vaporized, the fuel (wax) combines with oxygen in the atmosphere to ignite and form a constant flame.
This flame provides sufficient heat to keep the candle burning via a self-sustaining chain of events:
- The heat of the flame melts the top of the mass of solid fuel;
- The liquefied fuel then moves upward through the wick via capillary action;
- The liquefied fuel finally vaporizes to burn within the candle’s flame.