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 ...

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 ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. LED bulbs, by all indication, herald the future of home lighting ...

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 ...

You’ve likely heard that blue light from smartphone screens may be keeping you awake at night. While the sun is our main source of blue light, the rise of LEDs and screen use exposes us to artificial ...

Light pollution blues: photographs of London taken on board the ISS in 2012 (left) and 2020 (right). The images show the whitening and brightening of the city. (Courtesy: A Sánchez de Miguel et ...