Weatherwatch: how, when and why does a snowflake fall?, Meteorology
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Why No Two Snowflakes are Identical and 4 Other Fun Facts
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Snowflakes and snow crystals can grow fairly large, but there are limits : NPR
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The Meaning Of Snowflakes. Symbolism & Formation.
Is it true that no two snowflakes are identical? Office for Science and Society - McGill University
How To Collect, Preserve, And Make Snowflakes
Getting up close with snowflakes, Articles
Are Snowflakes Alive?, Alaska Nature Photography
Myth buster: No two snowflakes are alike? Very likely, but it's hard to prove
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