✓ 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 at top maps to crowns in air, but the CSS rotates the slider -90deg making visual top correspond to slider max=100/water, which is backwards from the labeled "↑ LUFT / ↓ WASSER"); no smooth fall animation — crown teleports via slider position rather than animating independently.
7,769 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (min=0 at top maps to crowns in air, but the CSS rotates the slider -90deg making visual top correspond to slider max=100/water, which is backwards from the labeled "↑ LUFT / ↓ WASSER"); no smooth fall animation — crown teleports via slider position rather than animating independently.