Strontium aluminate is a common phosphorescent material due to its ability to emit a long-lasting and bright glow after being exposed to light Here it is combined with resin epoxy to make a ring video

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Strontium aluminate is a common phosphorescent material due to its ability to emit a long-lasting and bright glow after being exposed to light Here it is combined with resin epoxy to make a ring video

GIFs (/r/gifs): "GIFs" is officially pronounced with a hard "J"