uNotes on the Spectral Lines of Hydrogen: Johann Jacob Balmer Annalen der Physik und
Chemie 25
80-5 (1885)
uI gradually arrived at a formula which, at
least for these four lines, expresses a law by which their wavelengths can be represented by striking precision…From the
formula, we obtained for a fifth
hydrogen line 3936.65x10-7 mm.
uThe development of quantum mechanics
uBohr and Schrödinger