— 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 horizontal "depth" slider and bar chart — entirely missing both crowns, the Hiero/Archimedes narrative, vertical slider, crown fall animation, splash effects, rising water level, and all four required live readouts (mass, density, displaced volume per crown).
Implements a generic Archimedes buoyancy demo with a horizontal "depth" slider and bar chart — entirely missing both crowns, the Hiero/Archimedes narrative, vertical slider, crown fall animation, splash effects, rising water level, and all four required live readouts (mass, density, displaced volume per crown).