✓ 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
Live mass, volume, and density values are hardcoded static text rather than dynamically updated tspan elements, and there is no frame-by-frame fall animation — crowns teleport to slider position with no inertia or easing.
Live mass, volume, and density values are hardcoded static text rather than dynamically updated tspan elements, and there is no frame-by-frame fall animation — crowns teleport to slider position with no inertia or easing.