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Title: Geometrically Cohesive Granular Materials: Structure, Permeability and Porosity Abstract: Geometrically cohesive granular materials (GCGMs) are granular materials whose shape allows for particle entanglement that can result in extreme rigidity (c.f. bird nests, beaver dams and entangled clothes hangers). In this talk I’ll first review some surprising rheological features of GCGMs that arise from the…