sand images.jpg I was reading this morning about the physicist Per Bak, who states that if grains of sand were dropped on a pile one at a time, at some point the pile would enter a critical stage, where another grain of sand would cause an avalanche. This “hypothesis” is used to show that small events can have large consequences; that seemingly stable systems can behave in unpredictable ways.
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Published on April 29, 2009 07:20