Abstract
This article discusses how two physicists - Etienne-Jules Marey and Friedrich Ahlborn - visualized turbulence in air and water around 1900. Their depictions are based upon several creative and conceptual presuppositions that can be revealed by comparing the work of the two, each of whom employed a field of parallel-aligned lines to depict results. Their similar means of visualizing comparable phenomena turn out to function differently, however, depending on the differences in the ways these lines were conceived and made. Representations 124. Fall 2013 © The Regents of the University of California.