A blast from the Elektor archives: this 1998 battery tester uses a simple LED display to reveal a battery’s true condition under load — even below 1 V.

Using ultracold atoms and laser light, researchers recreated the behavior of a Josephson junction—an essential component of ...

As an increasingly popular longevity tool, red-light therapy is said to help improve skin and hair health, enhance cellular ...

LED lightbulbs are supposed to last thousands of hours, so how come some of them stop working so fast? The answer might be in ...

Limit the time your Christmas tree lights are on to six to eight hours, preferably while someone is awake and able to monitor ...

Microscopic fibers secretly shape how every organ in the body works, yet they’ve been notoriously hard to study—until now. A new imaging technique called ComSLI reveals hidden fiber orientations in ...

LED Christmas lights may be efficient, but can you use them worry-free? We talked to an expert about how proper usage and ...

Silverstone near Oxfordshire welcomed TV personality Stacey Solomon to the launch of its iconic Lap of Lights.

These light up paper circuit cards were much easier to make than I expected and only need a few inexpensive materials.

Other popular inflatables include candy canes, Santa and his reindeer, penguins, elves, and nativity scenes. For a subtler ...

Over the past decades, engineers have introduced numerous technologies that rely on light and its underlying characteristics.

LED bulbs come with big promises: Save lots of money on energy bills, get more customization over lighting and your lights will last for years without needing to be replaced. Most of those are true, ...