Rheologists are scientists or engineers who study rheology, which is the branch of physics that deals with the deformation and flow of materials, particularly those that are complex and exhibit both solid and liquid behavior, like polymers, colloids, and biological fluids. Rheology encompasses how these materials respond to applied forces, including their viscosity, elasticity, and plasticity under different conditions. Rheologists often use specialized equipment to measure the flow and deformation characteristics of materials, such as rheometers.
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