HTML Opus #55
7.8
Evaluation
7.8 avg
8.5 physics accuracy
8.5 design quality
8 animation quality
5.5 slider ux
8.5 completeness
7.8 overall
✓ 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 is visually inverted (label "Wasser" at top, "Luft" at bottom, but value=0 starts crowns in air — directional labeling contradicts the control's actual behavior); all physics, live values, and Heureka animation are well-executed.

10,750 output tokens · claude-opus-4-6 · end_turn

Slider is visually inverted (label "Wasser" at top, "Luft" at bottom, but value=0 starts crowns in air — directional labeling contradicts the control's actual behavior); all physics, live values, and Heureka animation are well-executed.