On November 17, 2020 Frank Firk, professor emeritus of physics, passed away at the age of 90. Professor Firk carried out research in Nuclear Physics for more than sixty years. His main interests were in the fields of very high-resolution neutron spectroscopy at energies from a few electron volts to several hundred million electron volts, photonuclear reactions, neutron polarization, and nuclear instrumentation. From 1952 until 1965 he was a member of the Nuclear Physics Division at the Atomic Energy Research Establishment, Harwell, UK, and from 1965 until 1999 he was a member of the Department of Physics at Yale University.
Our thoughts are with his family and friends.