Tin Robot

Splashery stretches a drumhead over this Splash's outline, twelve inches across, and finds the ways it can ring. Its lowest is 492.4 Hz, 95 cents sharp of B♭4, the nearest tine on the comb. The next fifteen are its overtones, and each one draws its own figure: sand gathers on the lines that stay still.

Tap it to wind it up: its key whirs and its arms swing wide.

A wind-up robot is a tin toy with a spring inside. Turning the key on its back winds the spring tight, and as the spring slowly unwinds, it turns little gears that swing the arms and move the legs. Wind-up tin robots were a favorite toy in the middle of the 1900s.

This robot always swings its arms a little, and its antenna light glows. Tap it to wind it up: the key spins fast, the arms swing wide and it rocks and bobs from side to side, then it slowly runs down again. Pick its color in the Splash tab.

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