✓ 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
Slider direction is inverted (min=0 labeled "Luft" at top maps to crowns in air, but HTML range inputs render value=0 at bottom visually when rotated, making the mapping counterintuitive); mass/volume/density values are static not live, and no genuine fall animation — crowns just linearly translate with no acceleration curve.
Slider direction is inverted (min=0 labeled "Luft" at top maps to crowns in air, but HTML range inputs render value=0 at bottom visually when rotated, making the mapping counterintuitive); mass/volume/density values are static not live, and no genuine fall animation — crowns just linearly translate with no acceleration curve.