— 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
Competent general Archimedes demo with correct buoyancy physics and live values, but fundamentally misses the brief: no two crowns, no vertical fall-control slider, no Heureka moment, no splash effects, dark background instead of light, and the horizontal sliders control density/size rather than crown submersion depth.
9,093 output tokens · claude-opus-4-6 · end_turn
Competent general Archimedes demo with correct buoyancy physics and live values, but fundamentally misses the brief: no two crowns, no vertical fall-control slider, no Heureka moment, no splash effects, dark background instead of light, and the horizontal sliders control density/size rather than crown submersion depth.