Chemistry
Molecular Orbital Energy Diagram
σ / σ* splitting vs overlap
As two atoms approach, their atomic orbitals mix into bonding orbitals that sink and antibonding orbitals that rise — the split widening with overlap.
Computed & rendered in pure C# on the frozen OnlyCSharp 1.8 library — animation baked to GIF with the library's own
Gif encoder (no GPU, no ffmpeg, no external packages).