What are the fundamental symmetries of nature?
Symmetry considerations have had an enormous role in the development of physics. In 1918, the mathematician Emmy Noether showed that conservation laws can be derived from continuous symmetries. The law of conservation of energy can actually be derived from the symmetry requirement that nature behaves the same today as yesterday. Such considerations are used by theoretical physicists to restrict the form of the equations used to describe the physical universe. In addition to continuous symmetries, there exists discrete symmetries such as parity and time reversal. These symmetries explore whether nature looks the same when viewed in a mirror and if we can distinguish between a microscopic event, such as the collision of two electrons, and a movie of the same event run backwards. Observing a permanent electric dipole moments (EDM) of a fundamental particle would be interesting because a non-zero dipole moment requires that both parity and time reversal symmetries are violated. This can be
