— 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 general Archimedes/buoyancy simulator with correct physics and polished dark-theme UI, but misses virtually every prompt-specific requirement: no crowns, no crown-fall animation, no vertical slider controlling crown immersion, no rising water level, no splash effects, no Heureka animation, and no comparison between pure-gold and gilded crowns.
Implements a general Archimedes/buoyancy simulator with correct physics and polished dark-theme UI, but misses virtually every prompt-specific requirement: no crowns, no crown-fall animation, no vertical slider controlling crown immersion, no rising water level, no splash effects, no Heureka animation, and no comparison between pure-gold and gilded crowns.