Distinguished for his contributions to applied science and engineering, especially in rheology. In this field Professor Tanner has contributed to the experimental side by developing new methods for measuring basic non-Newtonian fluid parameters, and to theory by developing new models of fluid behaviour starting from the micro-structure of the fluid; recently he has also pioneered the application of finite element computer methods to the analysis of extrusion and related industrial processes. This work has received international recognition through the scientific literature and at major scientific conferences.