Physical symmetries

Physical symmetries refer to the principles that govern how certain properties of physical systems remain unchanged under various transformations, like rotations, reflections, or translations. For example, a perfect sphere looks the same from any angle; this spherical symmetry implies consistent physical behavior regardless of orientation. In nature, symmetries help us understand conservation laws, such as the conservation of energy or momentum. When a system exhibits symmetry, it often leads to predictable and fundamental laws of physics, revealing deeper insights into the interactions of matter and forces in the universe.