— 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
Entirely wrong concept — implements a generic buoyancy simulator with a single configurable body instead of the required two-crown (pure gold vs. gilded) Archimedes narrative; no crowns, no same-mass comparison, no vertical lowering slider, no water-level rise, no splash, no Heureka moment, and uses a dark background contrary to spec.
Entirely wrong concept — implements a generic buoyancy simulator with a single configurable body instead of the required two-crown (pure gold vs. gilded) Archimedes narrative; no crowns, no same-mass comparison, no vertical lowering slider, no water-level rise, no splash, no Heureka moment, and uses a dark background contrary to spec.