✓ 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 consistent and correct (same 1000 g mass, gold 19.3 vs gilded 13.0 g/cm³, larger gilded crown displaces more water), but crown movement is purely position-mapped with no smooth fall/drop animation — slider dragging replaces free-fall motion entirely.
Physics values are consistent and correct (same 1000 g mass, gold 19.3 vs gilded 13.0 g/cm³, larger gilded crown displaces more water), but crown movement is purely position-mapped with no smooth fall/drop animation — slider dragging replaces free-fall motion entirely.