SHOW AND TELL 134: Helmet Band " Cat Eyes " under Ultraviolet ( UV ) Light

SHOW AND TELL [134]: Helmet Band " Cat Eyes " under Ultraviolet (U.V.) Light

Wikipedia article on Phosphorescence : https://en.wikipedia.org/wiki/Phosphorescence

Wikipedia article on Fluorescence : https://en.wikipedia.org/wiki/Fluorescence

Wikipedia article on Persistent Luminescence: https://en.wikipedia.org/wiki/Persistent_luminescence

Wikipedia article on Luminescence : https://en.wikipedia.org/wiki/Luminescence