Our collective perception of flame is clouded. When asked to picture a flame, most people probably envision an orange streak ...

But the downside? Methanol burns with a light blue flame, which is only visible at night, making it nearly impossible to detect an ethanol or methanol fire in broad daylight with the naked eye.

By its exploding and leaping flames it generates heat and light to sustain the earth and all it's living things. The four pointed star surrounding the sun symbolizes the land, its light blue color ...

Under a boiling pot of water on a stove, we see blue flames as methane combusts ... a chemical process that yields almost no visible light. To see such a flame at all, thermal imaging cameras ...