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 ...

If you've spotted spooky purple streetlights in the middle of summer, they probably aren't a sign that a neighborhood has started celebrating Halloween early this year. Instead, the violet hue seen ...

Maybe you've seen them. Dozens of street lights across the Cincinnati area are giving off a purple or blue glow, casting an eerie scene on the landscapes below. The purple hues are not intentional.