— 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 generic Archimedes buoyancy education (sinking vs. floating) via ASCII art with button-stepped frames — none of the required features (two crowns, vertical slider, live values, water displacement, fall animation, splash, Heureka) are present.
Implements only generic Archimedes buoyancy education (sinking vs. floating) via ASCII art with button-stepped frames — none of the required features (two crowns, vertical slider, live values, water displacement, fall animation, splash, Heureka) are present.