对称性与守恒律

The Symmetry and Law of Conservation

本文从对称性入手 ,阐述了物理操作的对称性的实质即为守恒律 ,并从系统的机械能对坐标的平移、旋转及时间平移的对称性出发 ,推导出动量、角动量及机械能守恒律。同时进一步阐述了“对称性破缺”

The paper starts with the analysis of symmetry,setting forth that the essentiality of the physical manipulation in symmetry is just the law of conservation,along with the derivation of momentum,angular momentum and mechanical energy law of conservation,all based on the symmetry in which systematic mechanical energies cause the plane motion and circumrotation of space coordinates,as well as the change of time.Simultaneously,the broking of symmetry is also expounded in the paper.