Ångström
/ˈæŋstrəm/- Ångström, Anders Jonas (1814-1874), Swedish physicist. He proposed a relationship between the emission and absorption spectra of chemical elements, and measured optical wavelengths in the unit later named in his honour.埃斯特朗, 安德斯·约纳斯（1814-1874, 瑞典物理学家, 提出化学元素发散光谱和吸收光谱间的关系, 并测量了光谱线的波长, 后该长度单位以其姓氏命名）。