Like a person swinging a tennis racket in her right hand (whose reflection therefore is left-handed), the decay of cobalt 60 has an intrinsic handedness that is reversed by a mirror.

• 就像一个人以右手挥舞网球拍（其镜像是左手），钴60的衰变方式有属于其本质的惯用手，在镜子里会倒过来。