✓ 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
Physics values are plausible (gold ~19.2 g/cm³, bronze ~8.0 g/cm³, same 1000 g mass), but the crowns move together as one unit rather than having separate fall animations, and splash effects fire repeatedly on every slider tick rather than only at water-entry moment.
Physics values are plausible (gold ~19.2 g/cm³, bronze ~8.0 g/cm³, same 1000 g mass), but the crowns move together as one unit rather than having separate fall animations, and splash effects fire repeatedly on every slider tick rather than only at water-entry moment.