A real-world chemist has explained the true scientific meaning behind Star Wars' iconic red and blue lightsabers. How does this differ from the lore?

As the heat of the wax vapor flame melts more of the solid wax it creates more fuel for the flame to burn. The candle will only go out once it runs out of wax or oxygen—or gets blown out.

These chemicals are various metal salts that make different, specific colors as they are heated. In this science activity, you will get to burn some metal salts at home to investigate what colors they ...

The flame, symbolizing a blue natural gas flame, was installed in 1956 to promote the expansion of natural gas for cooking, heating and industrial uses. By changing its colors, it also served as a ...

It’s controlled via remote or touch controls, which allows you to adjust both the heat, duration, and flame colors and brightness. Key Specs. Dimensions: 40.9 x 25.28 x 37.6 inches: ...

Alan Alda's Flame Challenge has a winner, a graduate student in physics, who uses animation and song to explain the science of a flame in terms an 11-year-old could understand.