$$\frac{d^2\theta}{dt^2}=-\frac{g}{l}\sin(\theta)$$
**Complexity Explorable:** [Kick it like Chirikov](http://www.complexity-explorables.org/slides/kickedrotator/)
**Complexity Explorable:** [Hokus Fractus](http://www.complexity-explorables.org/slides/fractals/)
**Complexity Explorable:** [Weeds & Trees](http://www.complexity-explorables.org/slides/weeds-trees/)
**Complexity Explorable:** [Keith Haring's Mexican Hat](http://www.complexity-explorables.org/slides/stripes/)
**Complexity Explorable:** ["Hopfed Turingles"](http://www.complexity-explorables.org/slides/grayscott/)
**Complexity Explorable:** [Barista's Secret](http://www.complexity-explorables.org/slides/percolation/)
**Complexity Explorable:** [Berlin 8am](http://www.complexity-explorables.org/slides/traffic/)
**Complexity Explorable:** [Microbial growth patterns](http://www.complexity-explorables.org/slides/scotts-world/)