Everyone knows the old adage that no two snowflakes are alike. But the truth is more complicated than that. While it would be virtually impossible to actually find two snowflakes that are identical, if you want to get technical, it's possible two nano-snowflakes (with only 10 water molecules as opposed to about 1018) could be the same.
The Science Of Snowflakes
If That's Not Proof Enough
More On The Science Of Snowflakes
It's Okay To Be Smart breaks it down.
Key Facts In This Video
Wilson Bentley photographed the first snowflake. 01:14
A snowflake crystal starts as a tiny speck of dust or pollen which catches water vapor out of the air. 02:51
In 1988, researcher Nancy Knight claimed to have found two identical snowflakes. 03:48
How Snowflakes Form
It's time to get schooled in the winter wonderland outside your window.
Why Are Snowflakes Symmetrical?
There's complicated stuff happening in those tiny crystals.
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