Your Floor Can Glow in the Dark with Luminescent Gravel

Illustration for article titled Your Floor Can Glow in the Dark with Luminescent Gravel

Ever wanted to create luminescent designs or safety arrows in your floor, but weren't too crazy about those crappy, glow-in-the-dark stickers? Now a company in the Netherlands called Hidden Safety is marketing luminescent gravel, which can be mixed into concrete floors to create beautiful patterns or just point people the right direction in the dark. The gravel looks ordinary in light, but it is actually absorbing photons (hence, the material is often called photoluminescent). When darkness falls, photons zoom out of the gravel and create a glow.

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You can use different colors to create the glow, with many different patterns.

Illustration for article titled Your Floor Can Glow in the Dark with Luminescent Gravel
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Some prefer to use them as emergency arrows for people in industrial settings or on cruise ships.

Illustration for article titled Your Floor Can Glow in the Dark with Luminescent Gravel

Luminescent Gravel [Transmaterial]

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DISCUSSION

Glow-in-the-dark rocks nads. My daughter has a glow in the dark book and we take it outside to soak up the sun then look at the hidden pictures. Great fun for something so simple.

Which reminds me of something my brother and I used to do when we were little. We'd go into a completely dark room and take the flash from a camera and flash it so the image of the room would burn into our eyes. It really messes with your perception when you spin around in a circle and you're still seeing the same unmoving image.