— 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 general Archimedes buoyancy simulator with correct physics (F_A = ρ_F·g·V_displaced) and live value readouts, but entirely misses the prompt's core requirements: no two crowns, no vertical slider controlling submersion, no fall/splash animation, no Heureka moment, and uses a dark background instead of light.
Implements a general Archimedes buoyancy simulator with correct physics (F_A = ρ_F·g·V_displaced) and live value readouts, but entirely misses the prompt's core requirements: no two crowns, no vertical slider controlling submersion, no fall/splash animation, no Heureka moment, and uses a dark background instead of light.