— 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
A well-built general Archimedes simulator with correct physics and polished dark UI, but fundamentally off-brief: there are no crowns (pure gold vs. gilded), no vertical slider, no fall/splash animation, no rising water level, and no Heureka moment — the core narrative of the prompt is entirely absent.
A well-built general Archimedes simulator with correct physics and polished dark UI, but fundamentally off-brief: there are no crowns (pure gold vs. gilded), no vertical slider, no fall/splash animation, no rising water level, and no Heureka moment — the core narrative of the prompt is entirely absent.