Harry L. Goldsmith, Ph.D.

Annals of Biomedical Engineering presents a collection of articles from the collaborators and colleagues to commemorate Dr. Harry L. Goldsmith's outstanding contribution to the field of Biorheology on his 80th birthday. Harry helped define the microrheology of blood flow. RBC rotational dynamics and deformation, liquid droplet deformation, enhanced radial dispersion, inward migrational drift, blunted velocity profiles, twobody collisions, and doublet rotation became the tools to understand the microscopic forces on particles within flow. Harry estimated the hydrodynamic force to break up a doublet formed at high antibody dilution and noted that this was appreciably less force than necessary to break a C-C bond. Harry and colleagues developed a rheoscope which consisted of a counter-rotating transparent cone and plate viscometer mounted on the stage of an inverted microscope.