— 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
Physically sound general Archimedes demo with good live readouts, but misses the entire brief: no two crowns, no crown-lowering vertical slider, no fall animation, no splash, no Heureka moment, and uses a dark background — essentially a different (competent) simulation entirely.
Physically sound general Archimedes demo with good live readouts, but misses the entire brief: no two crowns, no crown-lowering vertical slider, no fall animation, no splash, no Heureka moment, and uses a dark background — essentially a different (competent) simulation entirely.