H.J. Andrews Experimental Forest, Oregon
1. Avalanche
To practice the quick slipping away of ground beneath our feet, geologists built a second mountain. This one is a tender surface, fitted with sensors, and rigged for data. On sunny, cold mornings, to practice how helpless, they measure piles to drop — peat, gravel, water-saturated masses of organic matter, combinations to mimic what might happen — and let them fall into chaos. To practice the moment of shock, they invite everyone like a performance. The scientists on their lunch break gather, promising to stand quietly for five minutes after the stopwatch starts, for the duration of the drop, to watch how it all tumbles, gaining speed, no gasping no matter what it looks like, and for ten whole minutes after. This is the most difficult part. Practicing the quiet after.
