source: http://feedproxy.google.com/~r/TheGreenEnergyBlog/~3/MFdHX6G0Z6A/solar-powered-light-emitting-cement
Here’s a different type of solar road idea. A new light-emitting cement “charged” by the power of the sun could light up roads at night, all night and for many, many years – no batteries or solar cells required. While glow-in-the-dark materials certainly aren’t new; they are mostly made with plastic and degrade in just […]
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