At about the same time that Kayser and Runge developed their relationship this man developed a similar formula.
At about the same time that Kayser and Runge developed their relationship this man developed a similar formula. The value of the number he derived is based on the premise that the nucleus of the atom emitting light is massive compared with a single orbiting electron. In 1890 he found that alkali atoms had a hydrogen-like spectrum that could be fitted by a slight modification of Balmer's formula. FTP, name this Swedish chemist, best known for his eponymous spectroscopic constant.
At about the same time that Kayser and Runge developed their relationship this man developed a similar formula.
Johannes Robert {Rydberg}