— 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 demo with correct physics and live readouts, but it fundamentally ignores the prompt: no two crowns, no vertical submersion slider, no fall/splash animation, no Heureka moment, and uses a dark background — nearly every crown-specific requirement is absent.
A well-built general Archimedes demo with correct physics and live readouts, but it fundamentally ignores the prompt: no two crowns, no vertical submersion slider, no fall/splash animation, no Heureka moment, and uses a dark background — nearly every crown-specific requirement is absent.