Cool What Fluoresces Under Black Light Ideas. The spots on ripe bananas will glow when black light is applied. Web black light fluoresces the spots on bananas.

Web not only do certain bodily fluids like saliva fluoresce, blood absorbs uv so splattered spots appear black, not red, under black light. Web one of the best examples of fluorescence is found in black locust (robinia pseudoacacia), which is very similar to mulberry in both appearance and weight. Web under longwave uv light, such as black light, the rock fluoresces a bright green or yellow.