hysical models have formed the basis for numerous classic ideas in sedimentary geology, from G.K. Gilbert's first flume experiments to full-scale sedimentary basin-filling models at the St. Anthony Falls Lab and elsewhere. Physical models can be used to develop fundamental intuition about sedimentary processes, quantitatively constrain sedimentation rates, and test numerical models of sedimentation. In sedimentary geology courses, physical models can serve as the basis for short, in-class demonstrations or for full-blown course projects.