Re:The Ig Nobel Prize: Why Are Cats Liquid? (2022)
by jaclaz on Saturday March 04, 2023 @09:01AM
(#35020807)
AFAIK, it is non-Newtonian allright:
>The Law of viscosity states that a fluid flows at a speed proportional to the force that is applied, where the constant of proportionality is the viscosity. Because ketchup does not obey this Law, it is known as a non-Newtonian fluid.
Maybe you are thinking of those (starch based) mixes like ooblek that are shear thickening whilst ketchup (and mayonnaise, and similar) are shear thinning, but both are non-Newtonian:
>The Law of viscosity states that a fluid flows at a speed proportional to the force that is applied, where the constant of proportionality is the viscosity. Because ketchup does not obey this Law, it is known as a non-Newtonian fluid.
https://www.futurity.org/ketchup-physics-rheology-1321922-2/
Maybe you are thinking of those (starch based) mixes like ooblek that are shear thickening whilst ketchup (and mayonnaise, and similar) are shear thinning, but both are non-Newtonian:
https://en.wikipedia.org/wiki/Non-Newtonian_fluid