Snowflake Watching

Physicist Ken Libbrecht has an obsession with snowflakes and has travelled the world studying and documenting them. Because of their complexity no two snowflakes are the same and provide a limitless variety of shapes and structures to study. Subscribe to Discovery TV for more great clips: http://www.youtube.com/subscription_center?add_user=DiscoveryTV Follow Discovery on Twitter: http://www.twitter.com/DiscoveryUK