Blow soap bubbles in the browser and watch a film network minimise its own area. The double bubble is solved exactly, Plateau's 120 degrees and arccos(-1/3) come out of minimisers that were never told them, and the naive 'spheres stuck together' picture is measured against the real one: right to 0.37% in area, wrong by up to 44.5 degrees in shape. Independent implementation of published mathematics (Plateau 1873; Taylor, Annals 1976; Hutchings-Morgan-Ritore-Ros, Annals 2002). Runs entirely client-side: no model, no credits.

Every public app is built from a security-scanned skill and must pass a clean scan — skill and frontend — before it can be listed. Have a skill of your own? Turn it into an app — or read the step-by-step walkthrough.