Video of a perfect snowflake forming is mesmerising stuff

Regular snow might be a rare enough sight here in Ireland, but we all know that traditional snowflake shape. Here’s an insight into how those perfect six-armed ice crystals form.

Ok, so there's a littletrickery here. Snowflakes obviously form at high altitudes, where it's a little tricky to place a camera. This video is actually a recording of a snowflake melting, played in reverse.