war-related project under the direction of Victor K. LaMer. He and a fellow graduate student, Paul Doty, studied light scattering theory to investigate the optical properties of smokes. This summer’s project, therefore, was Zimm’s introduction to light-scattering theory. In 1944 he moved across town to the Polytechnic Institute of Brooklyn as an instructor and research associate with Professor Herman Mark. His research there from 1944 to 1946 was the start of a lifelong fascination with biological and synthetic macromolecules. Bruno accepted a faculty position at the University of California, Berkeley, in 1946, and began developing the method of using light scattering for analysis of high-molecular-weight polymer solutions. As a young assistant professor he invented the famous Zimm plot for simultaneous determination of three fundamental macromolecular parameters: radius of gyration, the second virial coefficient, and molecular weight. Three of the publications reporting this pioneering work in 1948-1949 have been cited more than a thousand times, and Zimm is sole author on two of these (1948,1,2; 1949). While associate professor at Berkeley (from 1950 to 1952), he took leave to be a visiting lecturer in chemistry at Harvard University. In 1951 Zimm moved to the General Electric Research Laboratory in Schenectady, New York, where he spent nearly 10 years and made the transition from synthetic polymers to biological ones of polypeptides and DNA. At GE, Zimm published his two most highly cited papers: the report of the Zimm-Bragg theory of the transition between helix and coil in polypeptide chains (1959) and the theoretical description of polymer solution viscoelasticity and flow birefringence (1956). That second paper is regarded as the fundamental description of polymer dynamics with nearly 2000 citations. He returned to academia in 1960 and after a brief stint as a visiting professor at Yale, he moved to the University of California, San Diego, (UCSD), where he remained for the rest



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