— Two crowns — Same mass, different density — Vertical slider ✓ Slider works — Slider controls crowns — Slider direction correct — Full slider range — Fall animation ✓ Water displacement — Rising water level — Splash effects ✓ Physics correct — Live mass value ✓ Live volume value ✓ Live density value ✓ Live displaced water — Gilded displaces more — Heureka animation ✓ No external deps — Light bg / dark text ✓ Self-contained HTML
Implements a generic Archimedes buoyancy simulator with correct physics and reasonable visuals, but entirely misses the prompt's core requirements: no two crowns, no crown-specific mass/density scenario, no vertical immersion slider, no fall/splash animations, no Heureka moment, and dark background violates light-bg requirement.
Implements a generic Archimedes buoyancy simulator with correct physics and reasonable visuals, but entirely misses the prompt's core requirements: no two crowns, no crown-specific mass/density scenario, no vertical immersion slider, no fall/splash animations, no Heureka moment, and dark background violates light-bg requirement.