- Stern-Gerlach experiment
- fine structure split in energy levels
- anomalous Zeeman effect
- Of a more statistical nature, but therefore also macroscopic and more dramatically observable:
- Spin | 229, 596, 13
- Dirac equation | 329, 2k, 29
- Relativistic quantum mechanics | 99, 9k, 134
- Quantum mechanics | 170, 18k, 243
- Particle physics | 137, 28k, 458
- Physics | 276, 40k, 705
- Natural science | 0, 49k, 1k
- Science | 0, 53k, 1k
- Ciro Santilli's Homepage | 262, 182k, 3k