We discuss the difference between cohesive and non-cohesive granular media in the context of a recent report of "dry quicksand." Weak low density states with properties like dry quicksand are readily formed in common household powders. In contrast, such states cannot be formed in cohesionless granular media such as ordinary sand.
@article{arxiv.cond-mat/0512637,
title = {Low density fragile states in cohesive powders},
author = {Paul B. Umbanhowar and Daniel I. Goldman},
journal= {arXiv preprint arXiv:cond-mat/0512637},
year = {2015}
}
Comments
3 pages (RevTex), 1 figure, submitted to the American Journal of Physics