From your very first blinking LED to dazzling multi-color sequences, Arduino makes it easy to bring light to life. With just a board, a few LEDs, and some code, you can experiment with patterns, ...

Cheap and cheerful.

Scientists at Heriot‑Watt University have demonstrated in a world-first, that light can be used to control every aspect of how electromagnetic waves oscillate, opening new technological frontiers.

If you take a video of a spinning wheel, you’ll probably notice that the spokes appear to turn more slowly than the wheel is actually rotating, and sometimes in the wrong direction. This is caused ...

A headset recently approved by the Food and Drug Administration uses a weak electric current to shock the brain. Some ...

Scientists have achieved a major step toward chip-scale ultraviolet light by converting red light into powerful UV within a ...