Otto Robert Frisch

Otto Robert Frisch was a prominent Austrian physicist whose work primarily focused on nuclear physics. His research career was marked by significant collaborations, including his work with Otto Stern and Immanuel Estermann, where they successfully measured the magnetic moment of the proton. Another notable collaboration was with his aunt, Lise Meitner, with whom he made substantial contributions to the understanding of nuclear fission. Together, they developed the first theoretical explanation of the phenomenon and experimentally identified the by-products of fission.

Frisch's work took a critical turn during World War II, particularly in 1940 when he, along with Rudolf Peierls, designed the theoretical mechanism for the detonation of an atomic bomb. This pioneering work laid the groundwork for future developments in nuclear physics. In 1945, Frisch led the Los Alamos Critical Assemblies experiments, a project that culminated in the world's first prompt criticality achieved with the Dragon device. This experiment was a landmark event, underscoring Frisch's pivotal role in the advancement of nuclear physics and its applications.