✓ 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 left/bottom maps to crowns above water, but the rotated CSS slider has top=air correctly only by accident of the rotation transform — actual user drag direction is reversed from expected); mass, volume, and density values are static (not "live"), only displaced water updates dynamically.
6,175 output tokens · claude-opus-4-6 · end_turn
Slider direction is inverted (min=0 at left/bottom maps to crowns above water, but the rotated CSS slider has top=air correctly only by accident of the rotation transform — actual user drag direction is reversed from expected); mass, volume, and density values are static (not "live"), only displaced water updates dynamically.