✓ 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 (min=0 at top label "Luft/air", but CSS rotate(-90deg) on a horizontal range input means dragging toward the "Wasser" label increases the value, which may be confusing and is arguably correct visually but the underlying HTML ordering is ambiguous — the thumb starts at 0/air which is at the top visually after rotation, making it technically correct but borderline); physics values are solid (gold 19.32 g/cm³, fake crown 50/50 gold-silver mix yielding ~13.6 g/cm³, buoyancy in Newtons), Heureka overlay is polished, and the overall feature set is nearly complete.
11,374 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (min=0 at top label "Luft/air", but CSS rotate(-90deg) on a horizontal range input means dragging toward the "Wasser" label increases the value, which may be confusing and is arguably correct visually but the underlying HTML ordering is ambiguous — the thumb starts at 0/air which is at the top visually after rotation, making it technically correct but borderline); physics values are solid (gold 19.32 g/cm³, fake crown 50/50 gold-silver mix yielding ~13.6 g/cm³, buoyancy in Newtons), Heureka overlay is polished, and the overall feature set is nearly complete.