— 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 generic Archimedes buoyancy demo with one cylinder and three horizontal sliders — completely missing the two-crown (pure gold vs. gilded) narrative, vertical slider, fall/splash animations, rising water level, and Heureka moment that the prompt requires.
Implements a generic Archimedes buoyancy demo with one cylinder and three horizontal sliders — completely missing the two-crown (pure gold vs. gilded) narrative, vertical slider, fall/splash animations, rising water level, and Heureka moment that the prompt requires.