✓ 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 (CSS rotate(-90deg) maps HTML min=0 to visual bottom, so dragging down increases value, making bottom=water correct visually, but the label reads "⬆ LUFT … WASSER ⬇" alongside a left-to-right gradient that's rotated, creating ambiguity; water-rise display is in raw pixels rather than physical units (cm³ or mm), breaking the quantitative Archimedes lesson.
11,463 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (CSS rotate(-90deg) maps HTML min=0 to visual bottom, so dragging down increases value, making bottom=water correct visually, but the label reads "⬆ LUFT … WASSER ⬇" alongside a left-to-right gradient that's rotated, creating ambiguity; water-rise display is in raw pixels rather than physical units (cm³ or mm), breaking the quantitative Archimedes lesson.