UV beads

This is a recording of a NISE Network online brown-bag conversation held in December 2014 about the International Year of Light. In 2013, the United Nations proclaimed 2015 as the International Year of Light (IYL). More than 100 organizations from...

"Exploring Properties - UV Bracelets" is a hands-on activity in which visitors use ultraviolet light to change the color of beads that contain photochromic dye. They learn that the UV beads change color as a result of nanoscale shifts in...