— 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 generic Archimedes buoyancy with a button-triggered animation, but has no crowns, no vertical slider, no crown-specific physics (mass/density/volume), and misses nearly every crown-comparison requirement from the prompt.
Implements generic Archimedes buoyancy with a button-triggered animation, but has no crowns, no vertical slider, no crown-specific physics (mass/density/volume), and misses nearly every crown-comparison requirement from the prompt.