— 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 solid general Archimedes principle demo with correct physics and live readouts, but completely misses the prompt: no crowns (pure gold vs. gilded), no vertical fall-control slider, no splash effects, no rising water level, no Heureka animation, and uses a dark background — it's a generic floating-body simulator, not the requested Archimedes crown experiment.
Implements a solid general Archimedes principle demo with correct physics and live readouts, but completely misses the prompt: no crowns (pure gold vs. gilded), no vertical fall-control slider, no splash effects, no rising water level, no Heureka animation, and uses a dark background — it's a generic floating-body simulator, not the requested Archimedes crown experiment.