— 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
Implements a solid general Archimedes simulator with correct physics and live values, but misses virtually every prompt-specific requirement: no two crowns, no vertical slider controlling crown submersion, no fall/splash animations, no Heureka moment, and uses a dark background — it appears to be a generic buoyancy tool rather than the specified crown-comparison demo.
Implements a solid general Archimedes simulator with correct physics and live values, but misses virtually every prompt-specific requirement: no two crowns, no vertical slider controlling crown submersion, no fall/splash animations, no Heureka moment, and uses a dark background — it appears to be a generic buoyancy tool rather than the specified crown-comparison demo.