snowflake:

A crystal of snow. Snowflakes may take many different shapes of great beauty. Large snowflakes are formed by the combination of smaller flakes, usually at temperatures at or near freezing. Snowflakes are usually six sided because of the arrangement of hydrogen and oxygen atoms in the crystal. Small flakes form…

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Seymour Science Blog

This is one of the excellent photos in my new book WATER. But this photo is something special. It’s a photo taken by Liz Nealon, my wife and partner in research. Liz is an award-winning producer of children’s TV programs…

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