Snowflake Doppelganger

Snowflake Doppelganger: Are snowflakes really one of a kind? How do they form and what do they have to do with grade school art projects, personal identity, climate change and Jack the Ripper? Find out in this episode of Stuff to Blow Your Mind. And be sure to explore the accompanying gallery, Miniature Crystal Kingdoms, for mind-blowing macro snow flake images.

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