Gallery · reference compositions · simulated, for teaching only

Waves in a sheet of heart muscle

Four live figures, each built on the same GPU sheet of simulated heart muscle (the BOCF minimal cell model, coupled by diffusion). Each makes one principle visible. The figures run on their own; clicking or dragging is optional.

Faster along the fibres

In tissue, waves travel faster along fibres than across them.

A wave around an obstacle

A wave can chase its own tail around an obstacle — but only if something stops it from going both ways at once.

One-way block

How a premature stimulus creates one-way block, and why only a narrow range of timings does it.

Spirals

In open tissue, a broken wave curls into a spiral; its period sets the rate.