— 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 competent general Archimedes simulator with correct physics and animated waves, but completely misses the prompt's specific requirements: no two crowns, no Heureka narrative, no vertical crown-dipping slider, no fall/splash animations, dark background violates light-bg spec, and no mass readout.
Implements a competent general Archimedes simulator with correct physics and animated waves, but completely misses the prompt's specific requirements: no two crowns, no Heureka narrative, no vertical crown-dipping slider, no fall/splash animations, dark background violates light-bg spec, and no mass readout.