Physics / Math
Dendrite growth
Diffusion-limited crystal growth: snowflakes and electrodeposition.

What happens
Particles wander randomly until they touch the crystal and freeze onto it: diffusion-limited aggregation. The starving tips grow fastest, so branches and fjords appear on their own. Plant extra seeds with the left button and compare the presets, from lacy DLA to compact crystals and metal moss.
Equations used in the module
Equations walker: random steps until it touches the cluster, then sticks tips grow fastest: the field is steepest there D ≈ 1.71 in 2D (DLA)


