TITLE: ESCAPEMENT — clockwork mechanism
PROMPT: Build 'ESCAPEMENT', a clockwork mechanism explorer: an SVG plate of intermeshing brass gears (each rotating at correct relative speeds from tooth counts), an escapement wheel with a rocking anchor, a balance wheel oscillating, jewel bearings glinting, all under soft museum lighting on dark velvet. Interaction is physical: a crown wheel you can actually drag to wind — the whole train speeds up, the mainspring barrel visual winds tighter, and a power-reserve hand rises. Interactions: drag the crown (inertia, ratchet clicks — WebAudio, gesture-gated); pause to inspect with part labels that fly out on leader lines; train speed follows remaining reserve; a hairspring heartbeat zoom vignette. Mechanical romance, audible tick, precision.
DESCRIPTION: A watch movement on dark velvet under a museum spot: a mainspring barrel whose coil visibly winds tighter with reserve, a 32-tooth centre wheel geared through 24- and 20-tooth train wheels (brass and blued steel with ruby jewel bearings), a 15-club escape wheel advancing in discrete steps under a rocking steel pallet anchor, and a balance wheel with hairspring oscillating at a reserve-scaled beat (1–3.5 Hz). Drag the crown wheel clockwise to wind: the barrel spiral redraws tighter, the power-reserve arc climbs, and every ~1.2 radians of winding earns a ratchet click; the whole train's speed and tick rate follow remaining reserve until the movement dies at zero. TICKING pauses the beat; LABELS hides the etched italic part names. All ticks are bandpass-filtered square-wave clicks, gesture-gated.
TECHNIQUES: procedural gear-tooth polygon generation on SVG, tooth-ratio gear-down rotation with alternating direction, stepped escapement advance synchronized to balance phase with tick/tock alternation, live-drawn mainspring spiral as reserve gauge, power-reserve arc path computation, pointer angular-drag winding with ratchet-click milestones, WebAudio bandpass clicks, museum spotlight and velvet backdrop.
INTERACTION: Drag the crown wheel clockwise to wind (ratchet clicks, coil tightens, reserve rises); watch the train run down; toggle ticking; toggle the etched part labels; listen to the tick-tock after your first gesture.