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Ben Eater's flocking simulation with the three rules exposed as sliders, so you can break the flock deliberately.
Opens in a new tab. We do not control this site and it may have changed since we catalogued it.
Boids sits in Science Toys under Learn, and we have it filed as instant — good within five seconds of loading. It reads as mesmerising and clever.
Simulations you can meddle with: orbits, evolution, chemistry, cellular automata. Understanding through interference rather than through reading.
A stocked chemistry bench in the browser where you can mix reagents and get it badly wrong at no cost.
Interactive models of what complexity science likes best — epidemics, flocking, synchronisation, forest fires.
Home of Conway's Game of Life — pattern archive, wiki and a board for setting your own cells running.
An explorable on how ideas and riots spread through a social network, with the contagion thresholds under your control.
A graphing calculator good enough that people make art with it — type a function and drag its parameters about.
Build a circuit and watch current move through it as coloured dots, with an oscilloscope available on any node.
A toy about synchronisation — a few hundred blinking dots that agree on a rhythm with no conductor anywhere.
A genetic algorithm evolves two-dimensional cars across rough terrain while you watch generations fail forward.