Neuron

Splashery stretches a drumhead over this Splash's outline, twelve inches across, and finds the ways it can ring. Its lowest is 1303.4 Hz, 20 cents flat of E6. The next fifteen are its overtones, and each one draws its own figure: sand gathers on the lines that stay still.

Tap it to fire a signal. Try the Signal slider in the Splash tab.

A neuron is a nerve cell, the kind of cell that carries messages around the brain and body. Its branching dendrites pick up signals, and a long wire called the axon carries them on to the tips, where they pass to the next cell.

Tap it to fire a signal: a bright spark runs from the cell body down the whole axon and bursts into light at the tips. Real nerve signals are tiny electrical pulses, and some travel at over 100 meters a second. The human brain has about 86 billion neurons.

This link opens it in the Playground. To put it on your own page, add the element and one script tag. Every option.