✓ 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 labelled "Luft", max=100 "Wasser", but CSS `transform: rotate(-90deg)` on a horizontal range without `writing-mode: vertical` means dragging up increases value, making top=water rather than top=air); no genuine falling animation — crowns teleport to depth position rather than animating over time.
7,990 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (min=0 labelled "Luft", max=100 "Wasser", but CSS `transform: rotate(-90deg)` on a horizontal range without `writing-mode: vertical` means dragging up increases value, making top=water rather than top=air); no genuine falling animation — crowns teleport to depth position rather than animating over time.