— 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
This is a competent general Archimedes buoyancy simulator with correct physics and smooth spring animation, but it is entirely wrong for the prompt: no crowns, no vertical immersion slider, no fall/splash animation, no Heureka moment, and no two-crown comparison — it simply misses the core assignment.
This is a competent general Archimedes buoyancy simulator with correct physics and smooth spring animation, but it is entirely wrong for the prompt: no crowns, no vertical immersion slider, no fall/splash animation, no Heureka moment, and no two-crown comparison — it simply misses the core assignment.