Richardson derived the expected relation of M = e / 2 m ⋅ J {\displaystyle \mathbf {M} =e/2m\cdot \mathbf {J} } .
اشتقّ ريتشاردسون العلاقة المتوقعة من M = e / 2 m ⋅ J {\displaystyle \mathbf {M} =e/2m\cdot \mathbf {J} } .