# Monthly Archives: October 2012

## The Rydberg Formula

In Sampling the Hydrogen Atom I introduced the idea that the orbital velocity of the electron is close to light speed and is itself affected by relativity. Derivation of the Rydberg formula based on this model is very straightforward and I think rather elegant. The story starts with Joseph Jakob Balmer (1825-1898) who was a Swiss […]

## Quantization of angular momentum ?

To date all models for the structure of the atom are based on a hypothesis first put forward by the British physicist John Nicholson in 1911. Nicholson recognized that the units of Planck’s constant were those of angular momentum and so he reasoned that Planck’s constant was the angular momentum of the electron orbiting the […]

## Relativity and Angular Momentum

The idea that orbital velocity is affected by relativity is central to the theory presented in Sampling the Hydrogen Atom, so it is perhaps worthwhile examining this idea in a little more detail. Before doing so however it is necessary to restate that the use of Special Relativity in dealing with objects which have constant […]