inspecting flowers with a portable light and plucking up promising subjects. Many natural objects from rocks and minerals to hard corals and crustaceans fluoresce under ultraviolet light ...

Yooperlites can be found as loose pebbles and cobbles along many Lake Superior beaches and even in some inland gravel pits.

Researchers say chlorine in combination with ultraviolet light works to degrade deadly toxins created by harmful algae blooms in drinking water. Treatment plants use a combination of tools to keep ...