The study of Particle and Nuclear Physics brings together advanced experimental techniques, computational techniques, and theoretical understanding. The experiments are typically large collaborations working at international laboratories using highly sophisticated detectors. These detector technologies also find applications in medical physics and other forms of position sensing. The computational aspects deal with large data sets and use machine learning and other advanced techniques in data science. Theoretical nuclear and particle physics aims to interpret the experimental results in terms of mathematical models of the structure and evolution of the physical world.