— 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
Completely misses the prompt's core requirements — no two crowns, no vertical slider controlling crown immersion, no rising water level, no splash effects, no Heureka animation, and no gilded-vs-pure-gold comparison; instead delivers a generic Archimedes buoyancy simulator with a generic object and horizontal sliders for density/volume.
Completely misses the prompt's core requirements — no two crowns, no vertical slider controlling crown immersion, no rising water level, no splash effects, no Heureka animation, and no gilded-vs-pure-gold comparison; instead delivers a generic Archimedes buoyancy simulator with a generic object and horizontal sliders for density/volume.