✓ 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
All required features implemented with correct physics (1000g same mass, Au 19.3 g/cm³ vs Au/Ag 13.0 g/cm³, proportional water displacement), but mass and density values in the data cards are static/not dynamically updated — only displaced water changes live.
9,061 output tokens · claude-opus-4-6 · end_turn
All required features implemented with correct physics (1000g same mass, Au 19.3 g/cm³ vs Au/Ag 13.0 g/cm³, proportional water displacement), but mass and density values in the data cards are static/not dynamically updated — only displaced water changes live.