University of Wisconsin–Madison

Ultra-Violet Light

Sometimes called Black Light, ultra-violet light makes things glow, It's called fluorescence.

Colorful Slinky in White Light
White Light
Colorful slinky in ultra violet light
Ultra-Violet Light

Have you heard of laundry detergents that make your clothes "white and bright"? Well, they put stuff in the detergent that glows under ultra-violet light.

Detergent in White Light
White Light
Detergent in ultra violet light
Ultra-Violet Light

Other Examples of Ultra-Violet Light

Some rocks glow under UV light
Some rocks glow under UV light
Teeth glow, and so do Roger's contact lenses
Teeth glow, and so do Roger's contact lenses