"Version: 20220901"--Title page verso.Includes bibliographical references.1. Introduction -- 2. Symmetries and conservation theorems -- 2.1. Symmetry : a brief historical introduction -- 2.2. Symmetry in science -- 2.3. Symmetries in dynamic systems -- 2.4. From symmetry to gauge theory -- 2.5. Conclusion3. Spontaneous symmetry breaking -- 3.1. Symmetry breaking -- 3.2. Historical overview and …