Environmental Graffiti

Amazing Light Transmitting Concrete [PICS]

What’s as tough as concrete but lets light through, allowing you to see a picture of the outside world on interior walls in the form of silhouettes? Light transmitting concrete, silly, otherwise known as Litracon. From now on, if you’re stuck in a soulless work environment without windows, trees, passersby and other shapes you'd normally miss out on needn’t be such strangers.

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