Symmetries and conservation laws

Symmetries in physics mean that certain properties or behaviors of a system don't change when we modify it in specific ways, like rotating or shifting it. These symmetries are directly linked to conservation laws, which state that specific quantities, such as energy, momentum, or electric charge, remain constant over time. For example, the symmetry of physical laws regardless of where you are in space leads to the conservation of momentum. Essentially, recognizing symmetries helps us understand why certain properties stay the same in the universe, revealing fundamental principles that govern natural phenomena.