That photo above is what it looks like when you blow out a candle. The rainbows are caused by light refraction through the teeny tiny drops of wax coming off the wick.
According to the photographer, Grover Schrayer, he just used the built-in flash on his Fuji Finepix S8100fd with a Raynox M-250 macro lens to get this one of a kind shot.
Submitted by Delsyd
Michael Jones McKean, professor at the Virginia Commonwealth University, created a machine that makes artificial rainbows out of natural materials. The machine uses high-powered jet pumps and custom fountain nozzles to spray recycled rainwater into the air in such a way that it forms rainbows. The machine is solar-powered and generates renewable electricity. And… UNLIMITED POTS OF GOOOOLD?