One could say that snowflakes are simply frozen water — but if you compare a snowflake to an ice cube, you’ll notice a big difference. Why are all snowflakes six-sided? Why are none of them exactly the same? And how do we ski on them?
Though we know that their shapes have to do with the many possible branching points in snowflake formation and the differences in temperature and humidity, it is true that no matter how hard you look, you’re almost definitely not going to find two identical snowflakes.
Watch & learn from TED-Ed Lesson :http://ed.ted.com/lessons/the-science-of-snowflakes-marusa-bradac
Animation: bottomless well films
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