Good sleep hygiene calls for, among other things, a cool, dark and relaxing environment. It turns out the dark part is key to helping prevent heart disease. People who are exposed to more artificial ...
IRVING, TX — The Plastics Pipe Institute (PPI) has published a new technical document that provides recommended installation practices for PEX piping exposed to indoor artificial lighting. PPI TN-72 ...
How dark is the night sky where you live? If you’re in an urban area, the answer will likely be “not dark at all”. The pervasiveness of artificial light – be it in the form of streetlamps, billboards, ...
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