Introduction Have you ever seen video footage of an avalanche or landslide rolling down a hill? Why is it that at one moment everything seems fine then suddenly the mountain begins to slump? This ...

It was a beautiful bluebird powder day off the backside of Snowbowl, Montana. A storm had deposited 10 inches of low-density snow and I was excited to drop into the run. As I approached the ridge, I ...

Fine powders and granular materials are extensively used in industrial applications. To manage and to enhance processing techniques, these materials have to be exactly characterized. The ...