— 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
Competent general Archimedes simulator with correct physics formulas, but entirely misses the brief: no crowns, no two-object comparison, no vertical slider, no fall animation, no splash effects, no rising water level, no Heureka moment, and uses a dark background instead of light.
Competent general Archimedes simulator with correct physics formulas, but entirely misses the brief: no crowns, no two-object comparison, no vertical slider, no fall animation, no splash effects, no rising water level, no Heureka moment, and uses a dark background instead of light.