Storm Cloud

Splashery stretches a drumhead over this Splash's outline, twelve inches across, and finds the ways it can ring. Its lowest is 379.4 Hz, 57 cents flat of G4, 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 for thunder: lightning strikes under your finger. Try the Rain slider in the Splash tab.

A thunderstorm cloud can tower more than 10 kilometers into the sky. Inside it, bits of ice and water crash together and build up electric charge, until a giant spark, lightning, jumps across. Lightning heats the air around it to about 30,000 degrees Celsius, hotter than the surface of the Sun, and the air bursts outward with the boom we call thunder.

This cloud rains and flashes with lightning by itself. Tap it for a big strike and a clap of thunder: the bolt comes straight down from the cloud where you tapped. Light travels much faster than sound, so count the seconds between flash and thunder: every 3 seconds is about 1 kilometer away.

Made in Splashery. Its code is MIT.

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