Though they're so common that we don't typically give them much thought, lights are fascinating elements of the modern world. By sending an electrical current through a conductor, extreme amounts of ...

MIAMI-DADE COUNTY, Fla. — Residents in some South Florida neighborhoods have noticed that their local street lights are turning purple. The Florida Department of Transportation is replacing more than ...

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The color purple has long been a symbol of royalty, creativity, and mystery. But according to science, it's also something else: a figment of our imaginations. While it looks just as real as red or ...