— 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
Entirely wrong demo — implements a general Archimedes buoyancy explorer with a single adjustable object and horizontal sliders, completely missing the two-crown (pure gold vs. gilded) scenario, vertical fall-into-water slider, splash effects, rising water level, and the Heureka animation that the prompt requires.
Entirely wrong demo — implements a general Archimedes buoyancy explorer with a single adjustable object and horizontal sliders, completely missing the two-crown (pure gold vs. gilded) scenario, vertical fall-into-water slider, splash effects, rising water level, and the Heureka animation that the prompt requires.