Simulations I write for fun. Each one is a small model with simple rules, running live in your browser on the GPU. Most of them you can poke at.
Two chemicals feeding on each other grow coral, spots, mazes and dividing cells.
Ink and smoke you stir with a finger: an incompressible fluid that curls into vortices.
Ripples that bend through slits, cancel and reinforce, and bounce off walls you draw.
Conway's Game of Life and its cousins: simple birth and survival rules that grow into gliders, mazes and coral.
Visualizations
How an electric vehicle and a charger agree on what to do, drawn from the standards: the circuits, the signals on the wire and the messages they exchange.