— 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 only a generic Archimedes buoyancy calculator with horizontal sliders and ASCII art — no crowns, no vertical slider controlling crown immersion, no animation, no water displacement visualization, and no Heureka moment; misses nearly every core requirement of the prompt.
Implements only a generic Archimedes buoyancy calculator with horizontal sliders and ASCII art — no crowns, no vertical slider controlling crown immersion, no animation, no water displacement visualization, and no Heureka moment; misses nearly every core requirement of the prompt.