Add Yahoo as a preferred source to see more of our stories on Google. Have you noticed while you're driving at night that some of the street lights are actually emitting a bluish-purple glow? If so, ...

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 ...

ORLANDO, Fla. – By now, you’ve probably spotted at least one streetlight turning a blueish-purple hue while walking or driving in the evening. No, they’re not meant to be that color. While the lights ...

I'm curious about the blue streetlights on 23 near Lazelle Road. Are they a blue hue to keep people awake? To conserve energy? To hurt drivers' eyes? Total mystery to me. I have to admit, this week's ...