Light-emitting diodes (LEDs) are so ubiquitous that it's easy to forget just how much society relies on these underappreciated technological wonders. Yet, the history of the LED goes back further than ...

Call it the fifth generation of light—the availability of electric lights that promote health and well-being by automatically mimicking the natural cycle of light. They switch between blue-rich ...

No you're not imagining it. Headlights have gotten brighter, and people driving on dark roads since the start of Daylight Saving Time have felt the impact. Before LED lights were introduced, many auto ...

For thousands of years, the nighttime’s daily darkness naturally told humans it was time to go to sleep. That’s an evolutionary principle embedded into our brains — and it becomes apparent for those ...

Though we’re still galaxies away from having real lightsabers, the wonderful people in charge of Star Wars merchandising has given us the next best thing-LED flash light lightsabers. The Star Wars ...

LED headlights on modern cars can be incredibly bright for oncoming traffic, but fortunately there is a simple setting you can adjust to help reduce the glare.