= Uranium glass
{tag=Glass}
{tag=Fluorescence}
{wiki}
<Glass> with <Uranium> added to it to become <fluorescent> due to <Uranium>'s chemical properties. This is unrelated to <Uranium>'s nuclear properties.
However it was this <fluorescence> that led <Henri Becquerel> to discover <radioactivity> while studying <fluorescence>, which led him to have <Uranium> compounds and <photographic> material in close proximity. I love science I guess.
\Image[https://en.wikipedia.org/wiki/File:Vasline_glass_glowing.jpg]