About Us

Ron Milo

Ron Milo is an Associate Professor in the Department of Plant and Environmental Sciences at the Weizmann Institute of Science. He created the BioNumbers database when he was a Systems Biology Fellow at Harvard Medical School. Lab page



Rob Phillips is the Fred and Nancy Morris Professor of Biophysics and Biology at Caltech.  He is co-author of the widely used book “Physical Biology of the Cell’’ and a director and long standing faculty member of the Physiology Course at the Marine Biological Laboratory. Lab page

The Book

Very little in our human experience is truly comparable to the immensely crowded and bustling interior of a cell. Biological numeracy provides a new kind of understanding of the world of cells. This book brings together up-to-date quantitative data from the vast biological literature and uses the powerful tool of “back of the envelope” estimates to reveal fresh perspectives and insights from numbers commonly encountered in cell biology. Readers gain a feeling for the sizes, concentrations, energies, and rates that characterize the lives of cells—thereby shedding new light on the microscopic realm.

A sixth sense for understanding our cells

A Vision for Quantitative Biology

Cell Biology by the Numbers Course