✓ 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 (0% top = crowns in air, but a CSS rotate(-90deg) horizontal slider maps left→low value to visually top, yet the label reads "Luft ↕ Wasser" and slider value=0 keeps crowns above water—functionally correct intent, but no distinct fall/drop animation exists; crowns teleport linearly rather than falling with gravity.
11,291 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (0% top = crowns in air, but a CSS rotate(-90deg) horizontal slider maps left→low value to visually top, yet the label reads "Luft ↕ Wasser" and slider value=0 keeps crowns above water—functionally correct intent, but no distinct fall/drop animation exists; crowns teleport linearly rather than falling with gravity.