Zen blueberry

Entropy at work. Time lapse photos of a blueberry placed in a bowl of water, and then left alone.

Here's the rub: the zen-like 'O' produced by the random molecular movements known as Brownian motion seems to be ordered, not chaotic. How can entropy produce this result?

Ever hear of magnetic reversals, where the north and south poles switch? It has happened many times in our planet's history. Are we due for one in 2012?

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