— 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 demo with correct physics formulas, but entirely misses the prompt's core requirements: no two crowns, no crown-specific mass/density comparison, no vertical slider controlling crown submersion, no fall animation, no splash effects, no rising water level, no Eureka moment, and uses a dark background instead of light.
Implements a generic Archimedes buoyancy demo with correct physics formulas, but entirely misses the prompt's core requirements: no two crowns, no crown-specific mass/density comparison, no vertical slider controlling crown submersion, no fall animation, no splash effects, no rising water level, no Eureka moment, and uses a dark background instead of light.