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View submission: Is sand a liquid???
Just a bit of fun of course, but it was looking at cats as fluids rather than liquid (these words have different meanings in physics). Specifically, that cats are complex materials with dynamic rheology and can be (1) modelled as complex fluids in which there is a transition between linear and non-linear flow regimes, (2) unlike Newtonian fluids, they can absorb and retransmit stresses from/to the surrounding environment:
Fardin, M. A., “On the Rheology of Cats”, *Rheology Bulletin, 83(2) July 2014
There's nothing here!