= Particle physics
{wiki}
Currently an informal name for the <Standard Model>
Chronological outline of the key theories:
* <Maxwell's equations>
* <Schrödinger equation>
* Date: 1926
* Numerical predictions:
* <hydrogen spectral line>, excluding finer structure such as 2p up and down split: https://en.wikipedia.org/wiki/Fine-structure_constant
* <Dirac equation>
* Date: 1928
* Numerical predictions:
* <hydrogen spectral line> including 2p split, but excluding even finer structure such as <Lamb shift>
* Qualitative predictions:
* Antimatter
* Spin as part of the equation
* <quantum electrodynamics>
* Date: 1947 onwards
* Numerical predictions:
* <Lamb shift>
* Qualitative predictions:
* Antimatter
* <spin (physics)> as part of the equation