The science of candle flame

The main means of getting light the night before the invention of the V incandescent bulb was a candle. Candle lighting is a unique science. The heat melts the wax and climbs high through the divat and becomes a flame. Even though the wax burns, some of the wax reappears.

The melted wax in the candle evaporates as more heat is obtained. This wax vapor burns just like any other gas. It reacts with oxygen and releases carbon dioxide. This heat is called thermal energy. The energy stored in chemistry we get. Oxygen is not fully utilized when the candle wax melts and burns. And it also mixes air. Gradually the fine carbon particles of the burning wax disperse. These carbon particles assume a yellow illuminated color due to heat which appears to us in the form of a yellow flame and gives off light. Thus the flame of a candle is not made of wax but of carbon particles. Lanterns, kerosene or oil lamps also light up slowly in this way. Light is thermal radiation.