See the motion before the equations. Chaos, gravity, flocking, waves—
10 must-try simulators that run entirely in your browser.
Selected for clarity, visual impact, and hands-on fun. Each card previews the actual simulation in real time.
Just 3 rules — separation, alignment, cohesion — and a flock emerges. Change the agent count or field of view and watch the formation shift. The essence of emergence, made visible.
Change the initial value by just 0.0001 and the trajectory diverges completely — the visual proof of the butterfly effect. Deterministic yet unpredictable.
Two pendulums linked together and the path never repeats. A tiny change in starting angle produces a completely different motion. Simple structure, infinite complexity.
Click to generate ripples. When two waves meet, constructive and destructive interference fringes appear in real time — the same principle as Young's double-slit experiment.
Chaining rotating circles traces any complex curve. The geometric beauty of Fourier series, made visible. Every audio waveform and signal is just this — circles stacked on circles.
Mass curves space and particles spiral in. Experience Einstein's general relativity — the rubber-sheet model of spacetime curvature. Increase mass and watch the well deepen until nothing escapes.
Stars pull at each other, collide, merge, and scatter. The stability of solar systems, galaxy collisions, the three-body problem — all emerge from gravity alone.
Zoom in and the same shapes keep appearing — self-similarity without end. The formula z² + c generates infinite complexity. Mathematical beauty at its finest.
Perfectly elastic balls bounce off walls and each other, conserving energy and momentum. Complex patterns emerge from simple collisions — an intuitive model for gas molecules.
Why does an ambulance change pitch as it passes? Animated compression and expansion of sound waves from a moving source. Push to supersonic speed and a shockwave appears.
Structural, fluid, thermal, quantum, space, chemistry — browse the full library by category.
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