The prediction of the angle of repose for raised mounds of dry cohesive granular material is a long-standing problem in the natural sciences and in industry. Using numerical (particle-based) ...

Growing up in a household where there was plenty of exposure to home construction cultivated a fascination with dirt and sand piles, necessary components of many varied projects in which a parent was ...

Think of a load of sand, rocks or numbers crashing downhill, each ending up in piles. An audit will tell you how much stuff came down and how fast, but only a real understanding of the whole ...

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 ...

Geophysicists solve a key problem in physics and provide results that can be applied in such diverse areas as planetary research and 3-D printing / publication in ‘PNAS’ The prediction of the angle of ...