We must admit to wondering how Adafruit’s [Becky Stern] gets anything done with those fingernails of hers. They’re always long and beautifully painted without any chips, dings, or dents. As it turns ...

[GiorgiQ] needed a UV light to cure the etch resist on his printed circuit boards, and what better way to accomplish this than to build the perfect UV light box himself? The box consists of a custom ...

In this activity from Lawrence Hall of Science, you’ll use tonic water to detect ultraviolet (UV) light from the sun. We can see visible light emitted by the sun. But the sun also emits light we can’t ...

Exposure to ultraviolet radiation is known to cause skin damage, including skin cancer. Now, new research has raised questions about the safety of nail dryers, which use UV light to dry and cure gel ...

New research shows that the UV light in nail lamps could be harmful to your health, but you may not need to cancel your next appointment. Credit...Eric Helgas for The New York Times Supported by By ...