Your breath blows some of the wax gas away. Without this fuel, the flame will go out. The colors of a flame are caused by bits of wax molecules that didn’t get completely reacted. These glow a certain ...

The principle is simple; rather than directly measuring the temperature of the flame, use it to heat up ... typical estimates for a natural gas-powered burner are in the 1,500°C range.

The stoichiometry of the mixture can be controlled by changing the fuel to oxidized ratio, and an inert gas such as nitrogen may be used to dilute the reactants and alter the flame temperature. In a ...