✓ 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 (label says "Luft" at top / "Wasser" at bottom but the HTML range input with writing-mode bt-lr means min=0 at bottom and max=100 at top in most browsers, making the mapping unreliable), and no discrete fall animation — crowns track the slider linearly rather than dropping independently.
10,650 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (label says "Luft" at top / "Wasser" at bottom but the HTML range input with writing-mode bt-lr means min=0 at bottom and max=100 at top in most browsers, making the mapping unreliable), and no discrete fall animation — crowns track the slider linearly rather than dropping independently.