— 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 generic object and volume/fluid-density sliders — completely missing both crowns, the crown-lowering vertical slider, fall animation, splash effects, mass/displaced-water readouts, and the Heureka moment required by the prompt.
Implements a generic Archimedes buoyancy demo with a single generic object and volume/fluid-density sliders — completely missing both crowns, the crown-lowering vertical slider, fall animation, splash effects, mass/displaced-water readouts, and the Heureka moment required by the prompt.