This entry contributed by Dana Romero
In 1885, Johann Balmer Eric Weisstein's World of Biography discovered a formula for the series of discrete spectral lines emitted by atomic hydrogen. These had been observed for many years previously, with many unsuccessful attempts to describe them mathematically.
Balmer Lines, Bohr Model, Hydrogen Atom, Hydrogen Lines, Principal Quantum Number, Rydberg Constant
References
Young, H. D.; Freedman, R. A.; Sandin, T. R.; and Ford, A. L. Sears and Zemansky's University Physics, 10th ed. Reading, MA: Addison-Wesley, 1999.
