Avalanche! If a scientist stands in the way of 150 tons of snow crashing down a mountain at 50 mph, can he figure out why it let loose and when it will again?

Roach M
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Roach, M. (1999). Avalanche! If a scientist stands in the way of 150 tons of snow crashing down a mountain at 50 mph, can he figure out why it let loose and when it will again? Discover: Newsmagazine of Science, 20(12), 88-93.