Scale models, similitude and dimensions: Aspects of mid-nineteenth-century engineering science

Summary

This paper examines the type of theory used to justify the application of physical scale modelling to the solution of mid-nineteenth century engineering problems. To do this, it discusses three particular examples: the initial Britannia Bridge breaking experiments of E. Hodgkinson, the vibrating railway bridge experiments of R. Willis and G. G. Stokes; and the ship resistance experiments of W. Froude. The theory invoked in these case histories is viewed against the background of the response of the contemporary engineering community and compared with the notion of engineering science as proposed by W. J. M. Rankine.