HTML Sonnet #19
7.5
Evaluation
7.5 avg
7.5 physics accuracy
8 design quality
7.5 animation quality
8 slider ux
6.5 completeness
7.2 overall
✓ 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 values are hardcoded as static HTML text rather than live-updating data-val elements, so three of the four required live readouts are absent; displaced water and buoyancy update correctly, and the rest of the physics, visuals, and UX are solid.

7,965 output tokens · claude-sonnet-4-6 · end_turn

Mass, volume, and density values are hardcoded as static HTML text rather than live-updating data-val elements, so three of the four required live readouts are absent; displaced water and buoyancy update correctly, and the rest of the physics, visuals, and UX are solid.