— 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
Competent general Archimedes simulator with correct physics and polished dark-theme UI, but it implements none of the required prompt specifics: no two crowns (pure gold vs. gilded), no same-mass/different-density comparison, no vertical slider for crown immersion, no fall/splash animation, no water-level rise, and no "Heureka" moment.
Competent general Archimedes simulator with correct physics and polished dark-theme UI, but it implements none of the required prompt specifics: no two crowns (pure gold vs. gilded), no same-mass/different-density comparison, no vertical slider for crown immersion, no fall/splash animation, no water-level rise, and no "Heureka" moment.