— 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 a single ball and no crowns, no vertical slider, no gold/gilded crown comparison, and no physically meaningful values — nearly every core requirement of the prompt is absent.
Implements a generic Archimedes buoyancy demo with a single ball and no crowns, no vertical slider, no gold/gilded crown comparison, and no physically meaningful values — nearly every core requirement of the prompt is absent.