Tributes to Hans Bethe continue

The special issue Celebrating the life of Hans Bethe admirably described his contributions to both physics and society. In physics it covered his work in astro-, nuclear, and condensed matter physics and in quantum electrodynamics. Perhaps not as well known were his extraordinary contributions to atomic physics. Our recent article discusses this aspect of his voluminous output. ¹ It covers his seminal work on the stability of the negative hydrogen ion; details of his atomic-physics calculations regarding the Lamb shift; aspects of his important work in collision theory, especially his work in stopping power; several important aspects of atomic physics related to crystalline solids; and his books and review articles in the field.