✓ 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
Mass, volume, and density are static display values rather than live-updating readouts, failing the live-value requirement for three of four metrics; only displaced water updates dynamically.
8,538 output tokens · claude-opus-4-6 · end_turn
Mass, volume, and density are static display values rather than live-updating readouts, failing the live-value requirement for three of four metrics; only displaced water updates dynamically.