A new report designed to provide objective performance information on existing street lighting technologies -- including light-emitting diode (LED), induction, and high pressure sodium (HPS) ...

The kaleidoscope was first invented back in the early 1800s, with the curio known for showing compelling psychedelic patterns as light passes through colored glass and is reflected by mirrors in a ...

JACKSON -- The water department of Tampa, Fla. began research for a lighting upgrade earlier this spring with the goal of cutting energy costs at their buildings. An upgrade in lighting would enhance ...