Dear EarthTalk: Are there health or environmental concerns with LED lightbulbs, which may soon replace compact fluorescents as the green-friendly light ... Science and Technology found that ...

A first-of-its-kind chip architecture that uses both electronic- and light-based components ... Keumars is the technology editor at Live Science. He has written for a variety of publications ...

A woman sits in an infrared sauna—which uses light to create heat instead of electric heaters or steam—in New York City. Infrared technology ... the current science suggests that low-level ...