From the Royal Society comes a short primer on snowflakes. Narrated by physicist Brian Cox, the video explains how they form, and why no two snowflakes have the exact same dimensions. It also recounts how Johannes Kepler developed a groundbreaking theory about the hexagonal shape of snowflakes in 1611–one proved right 400 years later. And then comes the kicker: snowflakes aren’t actually white; they’re clear.
Along the way, Cox references the first photographs of snowflakes. You can find our post on those 1885 photographs here.
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