Sign up for free

Newsletters

Once a month
get new photos
and expert tips.

Photography
Main Photo Galleries Wallpapers Photo of the Day Photographers Photo Tips Buy Prints

Ultraviolet Bath, Russia

Photo: Children exposed to ultraviolet light

This month in Photo of the Day: Images From the National Geographic Archive

Make-believe summer lasts for a minute or two as kindergarten children in sunless Lovozero bathe in ultraviolet light. Brief exposure to UV radiation provides the children with vitamin D, normally supplied by sunlight. The "sunshine vitamin" strengthens young bones.

From the National Geographic book The Image Collection.