10 Satisfying Simulations Played by Physics (86,016 Pendulums, 12,623 Glass Pieces)

Ten simulations, one rule each, 50 seconds each. Every note you hear is played by the simulation itself: a bounce, a collapse, a collision. No backing track, no songs, only physics. 200 identical pendulums that stop being identical. 166,768 sand grains collapsing from a single grain. 86,016 pendulums painting a map of three magnets. One glass pane breaking into 12,623 pieces. Chapters 0:00 200 pendulums, same start 0:50 Sand pile 1:40 Every bounce plays one key higher 2:29 Langton's ant 3:19 Swarm breakout 4:09 86,016 pendulums, 3 magnets 4:53 Slime mold 5:43 Coral race 6:33 Fourier circles 7:23 Shattered glass Which rule should we simulate next? Tell me in the comments. All music is generated live by the simulations themselves. No copyrighted songs are used.