The winners of the 2013 Flame Challenge were announced yesterday at the World Science Festival in New York. This year's challenge was to explain the concept of 'time' to eleven year old judges.
Since this is my blog, I'm posting the video entry that I liked best, even though it didn't win the top prize. It was created by John Suchoki of Saint Michael's College in Vermont. You can see the top written and video entries here.
Or you can watch the Flame Challenge award ceremony: