Physics - Modern Physics - Quantum Mechanics - Spin and Pauli exclusion principle - Spin and Exclusion Visualizer

Two interactive demonstrations. Panel 1 - 'Electron Spin': Show an electron with spin-up (↑, ms=+½) and spin-down (↓, ms=-½). In a magnetic field: spin-up has slightly lower energy, spin-down slightly higher. This splits each energy level into 2 (fine structure). The Stern-Gerlach experiment: beam o