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Non-Newtonian fluid
In rheology, the science of fluids, a non-Newtonian fluid is one whose viscosity changes with the applied shear force.
Types of non-Newtonian fluid include:
- rheopectic (viscosity increases with increasing force, as in some lubricants)
- thixotropic (viscosity decreases with increasing force; e.g. non-drip paints; tomato ketchup)
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