— 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 domain — implements a generic Archimedes buoyancy explorer (arbitrary shapes, density/volume sliders) with no crowns, no vertical crown-dipping slider, no Heureka moment, and a dark background, missing virtually every crown-specific requirement.
Entirely wrong domain — implements a generic Archimedes buoyancy explorer (arbitrary shapes, density/volume sliders) with no crowns, no vertical crown-dipping slider, no Heureka moment, and a dark background, missing virtually every crown-specific requirement.