Physics Today 0031-9228 5411200126 https://doi.org/10.1063/1.1428429November 2001, page 26 —In the figure caption, Hans Bethe and Boyce McDaniel are bicycling around the 10 GeV Cornell electron synchrotron tunnel, not the Cornell Electron Storage Ring. CESR was added to the tunnel in 1979, more than 10 years after the photograph was taken.