✓ 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 are implemented correctly in an ASCII-art style with solid physics (gold 19.3 g/cm³, alloy 13.0 g/cm³, same 1000 g mass, live buoyancy/displacement values), but the purely text-based rendering limits visual clarity of water rise and splash effects compared to a canvas/SVG approach.
All required features are implemented correctly in an ASCII-art style with solid physics (gold 19.3 g/cm³, alloy 13.0 g/cm³, same 1000 g mass, live buoyancy/displacement values), but the purely text-based rendering limits visual clarity of water rise and splash effects compared to a canvas/SVG approach.