Otto Stern won the Nobel Prize in Physics in 1943 for the development of
molecular beam methods
and the discovery of proton magnetic moments. In 1933，Stern and his
collaborators measured proton magnetic moments.
The measurement of proton magnetic moments expanded the way for human to
explore the micro world and
accelerated the process of people’s understanding of nuclear structure. The
experiment of magnetic moment measurement
has been carried out and the whole process of proton magnetic moment
measurement by Stern et al. has
been deeply excavated. The purpose is to clarify Stern’s pioneering
contribution to proton magnetic moment measurement
and the contribution of the experiment to the development of nuclear
physics in the 1930s.