✓ 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 ambiguous/inverted per the code's own confused comment (top=high value=crowns submerged contradicts the stated intent of top=air), and there is no timed fall animation — the slider directly teleports crowns with no independent drop motion.
13,587 output tokens · claude-opus-4-6 · end_turn
Slider direction is ambiguous/inverted per the code's own confused comment (top=high value=crowns submerged contradicts the stated intent of top=air), and there is no timed fall animation — the slider directly teleports crowns with no independent drop motion.