✓ 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 — the code compensates with `sliderValue = 100 - parseInt(this.value)` but the visual/label mapping (top=☁ Luft, bottom=🌊 Wasser) still means dragging the thumb toward the bottom label increases value correctly, yet the underlying slider thumb travels in the unintuitive direction for a vertical range input; all required physics, live values, splash, and Heureka features are genuinely present and physically plausible.
9,305 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted — the code compensates with `sliderValue = 100 - parseInt(this.value)` but the visual/label mapping (top=☁ Luft, bottom=🌊 Wasser) still means dragging the thumb toward the bottom label increases value correctly, yet the underlying slider thumb travels in the unintuitive direction for a vertical range input; all required physics, live values, splash, and Heureka features are genuinely present and physically plausible.