The reflective tape on safety vests are made from glass beads. So when you shine a light 🔦 on the reflective tape it is the refraction of light by the glass that causes it to be seen! 👀
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The reflective tape on safety vests are made from glass beads. So when you shine a light 🔦 on the reflective tape it is the refraction of light by the glass that causes it to be seen! 👀
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